UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 20-F

(Mark One)

OR

        For the fiscal year ended March 31, 2018

OR

OR

        Date of event requiring this shell company report

                      For the transition period from             to             

Commission file number 001-33098

Kabushiki Kaisha Mizuho Financial Group

(Exact name of Registrant as specified in its charter)

Mizuho Financial Group, Inc.

(Translation of Registrant’s name into English)

Japan

(Jurisdiction of incorporation or organization)

1-5-5 Otemachi

Chiyoda-ku, Tokyo 100-8176

Japan

(Address of principal executive offices)

Masahiro Kosugi, +81-3-5224-1111, +81-3-5224-1059, address is same as above

(Name, Telephone, Facsimile number and Address of Company Contact Person)

Securities registered or to be registered pursuant to Section 12(b) of the Act.

Securities registered or to be registered pursuant to Section 12(g) of the Act.

None

(Title of Class)

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:

None

(Title of Class)

Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report.

At March 31, 2018, the following shares of capital stock were issued: 25,389,644,945 shares of common stock (including 6,487,234 shares of common stock held by the registrant as treasury stock).

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes  ☒    No  ☐

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.

Yes  ☐    No  ☒

Note—checking the box above will not relieve any registrant required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 from their obligations under those Sections.

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or an emerging growth company. See definition of “large accelerated filer, “accelerated filer,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards† provided pursuant to Section 13(a) of the Exchange Act.  ☐

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:

If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow.

Item 17  ☐    Item 18  ☐

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes  ☐    No  ☒

(APPLICABLE ONLY TO ISSUERS INVOLVED IN BANKRUPTCY PROCEEDINGS DURING THE PAST FIVE YEARS)

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court.

☐  Yes     ☐  No

MIZUHO FINANCIAL GROUP, INC.

ANNUAL REPORT ON FORM 20-F

Table of Contents

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PRESENTATION OF FINANCIAL AND OTHER INFORMATION

In this annual report, the terms “Mizuho Financial Group,” the “Group,” “we,” “us” and “our” generally refer to Mizuho Financial Group, Inc. and its consolidated subsidiaries, but from time to time as appropriate to the context, those terms refer to Mizuho Financial Group, Inc. as an individual legal entity. Furthermore, unless the context indicates otherwise, these references are intended to refer to us as if we had been in existence in our current form for all periods referred to herein.

On July 1, 2013, a merger between the former Mizuho Bank, Ltd. and the former Mizuho Corporate Bank, Ltd. came into effect with the former Mizuho Corporate Bank as the surviving entity, which was renamed Mizuho Bank upon the merger. In this annual report, “Mizuho Bank” refers to the post-merger entity, while the “former Mizuho Bank” and the “former Mizuho Corporate Bank” refer to pre-merger Mizuho Bank and pre-merger Mizuho Corporate Bank, respectively.

In this annual report, “our principal banking subsidiaries” refer to Mizuho Bank and Mizuho Trust & Banking Co., Ltd. (or with respect to references as of a date, or for periods ended, before July 1, 2013, to the former Mizuho Bank, the former Mizuho Corporate Bank and Mizuho Trust & Banking).

In this annual report, references to “U.S. dollars,” “dollars” and “$” refer to the lawful currency of the United States and those to “yen” and “¥” refer to the lawful currency of Japan.

In this annual report, yen figures and percentages have been rounded to the figures shown. However, in some cases, figures presented in tables have been adjusted to match the sum of the figures with the total amount, and such figures may also be referred to in the related text. In addition, yen figures and percentages in “Item 3.A. Key Information—Selected Financial Data—Japanese GAAP Selected Consolidated Financial Information” and others that are specified have been truncated to the figures shown.

Our fiscal year end is March 31. References to years not specified as being fiscal years are to calendar years.

Unless otherwise specified, for purposes of this annual report, we have presented our financial information in accordance with accounting principles generally accepted in the United States, or U.S. GAAP. Unless otherwise stated or the context otherwise requires, all amounts in our financial statements are expressed in yen.

We usually hold the ordinary general meeting of shareholders of Mizuho Financial Group in June of each year in Chiyoda-ku, Tokyo.

FORWARD-LOOKING STATEMENTS

We may from time to time make written or oral forward-looking statements. Written forward-looking statements may appear in documents filed with the Securities and Exchange Commission, including this annual report, and other reports to shareholders and other communications.

The U.S. Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking information to encourage companies to provide prospective information about themselves. We rely on this safe harbor in making these forward-looking statements.

This annual report contains forward-looking statements regarding the intent, belief, current expectations and targets of our management with respect to our financial condition and future results of operations. In many cases, but not all, we use such words as “aim,” “anticipate,” “believe,” “endeavor,” “estimate,” “expect,” “intend,” “may,” “plan,” “probability,” “project,” “risk,” “seek,” “should,” “strive,” “target” and similar expressions in relation to us or our management to identify forward-looking statements. You can also identify forward-looking

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statements by discussions of strategy, plans or intentions. These statements reflect our current views with respect to future events and are subject to risks, uncertainties and assumptions. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, our actual results may vary materially from those we currently anticipate. Potential risks and uncertainties include, without limitation, the following:

Our forward-looking statements are not guarantees of future performance and involve risks and uncertainties. Actual results may differ from those in the forward-looking statements as a result of various factors. We identify in this annual report in “Item 3.D. Key Information—Risk Factors,” “Item 4.B. Information on the Company—Business Overview,” “Item 5. Operating and Financial Review and Prospects” and elsewhere, some, but not necessarily all, of the important factors that could cause these differences.

We do not intend to update our forward-looking statements. We are under no obligation, and disclaim any obligation, to update or alter our forward-looking statements, whether as a result of new information, future events or otherwise.

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PART I

Not applicable.

Not applicable.

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3.A. Selected Financial Data

The following tables set forth our selected consolidated financial data.

The first table below sets forth selected consolidated financial data of Mizuho Financial Group as of and for the fiscal years ended March 31, 2014, 2015, 2016, 2017 and 2018 derived from the audited consolidated financial statements of Mizuho Financial Group prepared in accordance with U.S. GAAP.

The second table below sets forth selected consolidated financial data of Mizuho Financial Group as of and for the fiscal years ended March 31, 2014, 2015, 2016, 2017 and 2018 derived from Mizuho Financial Group’s consolidated financial statements prepared in accordance with accounting principles generally accepted in Japan, or Japanese GAAP.

The consolidated financial statements of Mizuho Financial Group as of and for the fiscal years ended March 31, 2016, 2017 and 2018 prepared in accordance with U.S. GAAP have been audited in accordance with the standards of the Public Company Accounting Oversight Board (United States) by Ernst & Young ShinNihon LLC, independent registered public accounting firm.

You should read the U.S. GAAP selected consolidated financial information presented below together with the information included in “Item 5. Operating and Financial Review and Prospects” and the audited consolidated financial statements, including the notes thereto, included in this annual report. The information presented below is qualified in its entirety by reference to that information.

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U.S. GAAP Selected Consolidated Financial Information

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Notes:

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Japanese GAAP Selected Consolidated Financial Information

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Notes:

There are certain differences between U.S. GAAP and Japanese GAAP. The differences between U.S. GAAP and Japanese GAAP applicable to us primarily relate to the accounting for derivative financial instruments and hedging activities, investments, loans, allowances for loan losses and off-balance-sheet instruments, premises and equipment, land revaluation, business combinations, pension liabilities, consolidation of variable interest entities, deferred taxes and foreign currency translation. See “Item 5. Operating and Financial Review and Prospects—Reconciliation with Japanese GAAP.”

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Exchange Rate Information

The following table sets forth, for each period indicated, the noon buying rate in New York City for cable transfers in yen as certified for customs purposes by the Federal Reserve Bank of New York, expressed in yen per $1.00. The exchange rates are reference rates and are not necessarily the rates used to calculate ratios or the rates used to convert yen to U.S. dollars in the financial statements contained in this annual report.

Note:

3.B. Capitalization and Indebtedness

Not applicable.

3.C. Reasons for the Offer and Use of Proceeds

Not applicable.

3.D. Risk Factors

Investing in our securities involves a high degree of risk. You should carefully consider the risks described below as well as the other information in this annual report, including our consolidated financial statements and related notes, “Item 5. Operating and Financial Review and Prospects,” “Item 11. Quantitative and Qualitative Disclosures about Credit, Market and Other Risk” and “Selected Statistical Data.”

Our business, financial condition and operating results could be materially adversely affected by any of the factors discussed below. The trading price of our securities could decline due to any of these factors. This annual report also contains forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, including the risks faced by us described below and elsewhere in this annual report. See “Forward-Looking Statements.”

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Risks Relating to Our Business

We may be required to increase allowance for loan losses and/or incur significant credit-related and other costs in the future due to problem loans.

We are the primary bank lender for a large number of our corporate customers, and the amount of our loans and other claims to each of our major customers is significant. In addition, while we have made efforts to diversify our credit exposure along industry lines, the proportion of credit exposure to customers in the banks and other financial institutions, manufacturing and real estate industries is relatively high. We manage our credit portfolio by regularly monitoring the credit profile of each of our customers, the progress made on restructuring plans and credit exposure concentrations in particular industries or corporate groups, and we also utilize credit derivatives for hedging and credit risk mitigation purposes. We provide an allowance for loan losses taking into consideration the borrower’s situation, the value of relevant collateral and guarantee, which we periodically re-evaluate, and economic trends based on our self-assessment standards as well as applicable charge-off and allowance standards. However, depending on trends in the domestic and global economic environment, the business environment in particular industries, prices of real estate assets and other factors, the amount of our problem loans and other claims could increase significantly, including as a result of the deterioration in the credit profile of customers for which we are the primary bank lender, other major customers or customers belonging to industries to which we have significant credit exposure, and the value of collateral and guarantees could decline. There can be no assurance that credit-related and other costs, including provision for loan losses and charge-offs of loans, will not increase in the future as a result of the foregoing or otherwise.

Our equity investment portfolio exposes us to market risks that could adversely affect our financial condition and results of operations.

We hold substantial investments in marketable equity securities, mainly common stock of Japanese listed companies. We have established the “Policy Regarding Cross-holding of Shares of Other Listed Companies” and, in light of the potential material adverse impact on our financial position associated with stock market volatility risk, we have decided to hold the shares of other companies as cross–shareholdings only when these holdings are meaningful, and we have accordingly sold a portion of such investments. In addition, in order to lower the risk of stock market volatility, we have been applying partial hedges as we deem necessary. However, significant declines in Japanese stock prices in the future would lead to unrealized losses, losses on impairment and losses from sales of equity securities. In addition, net unrealized gains and losses on such investments, based on Japanese GAAP, are taken into account when calculating the amount of capital for purposes of the calculation of our capital adequacy ratios, and as a result, a decline in the value of such investments would negatively affect such ratios. Accordingly, our financial condition and results of operations could be materially and adversely affected.

Changes in interest rates could adversely affect our financial condition and results of operations.

We hold a significant amount of bonds, consisting mostly of Japanese government bonds, and other instruments primarily for the purpose of investment. As a result of such holdings, an increase in interest rates, primarily yen interest rates, could lead to unrealized losses of bonds or losses from sales of bonds. In addition, due mainly to differences in maturities between financial assets and liabilities, changes in interest rates could have an adverse effect on our average interest rate spread. We manage interest rate risk under our risk management policies, which provide for adjustments in the composition of our bond portfolio and the utilization of derivatives and other hedging methods to reduce our exposure to interest rate risk. However, in the event of significant changes in interest rates, including as a result of a change in Japanese monetary policy, increased sovereign risk due to deterioration of public finances and market trends, our financial condition and results of operations could be materially and adversely affected.

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Our financial condition and results of operations could be adversely affected by foreign exchange rate fluctuations.

A portion of our assets and liabilities is denominated in foreign currencies, mainly the U.S. dollar. The difference between the amount of assets and liabilities denominated in foreign currencies leads to foreign currency translation gains and losses in the event of fluctuations in foreign exchange rates. Although we hedge a portion of our exposure to foreign exchange rate fluctuation risk, our financial condition and results of operations could be materially and adversely affected if future foreign exchange rate fluctuations significantly exceed our expectations.

We may incur further losses relating to decreases in the market liquidity of assets that we hold.

The market liquidity of the various marketable assets that we hold may decrease significantly due to turmoil in financial markets and other factors, and the value of such assets could decline as a result. If factors such as turmoil in global financial markets or the deterioration of economic or financial conditions cause the market liquidity of our assets to decrease significantly, our financial condition and results of operations could be materially and adversely affected.

Our pension-related costs could increase as a result of revised assumptions or changes in our pension plans.

Our pension-related costs and projected benefit obligations are calculated based on assumptions regarding projected returns on pension plan assets and various actuarial assumptions relating to the plans. If actual results differ from our assumptions or we revise our assumptions in the future, due to changes in the stock markets, interest rate environment or otherwise, our pension-related costs and projected benefit obligations could increase. In addition, any future changes to our pension plans could also lead to increases in our pension-related costs and projected benefit obligations. As a result, our financial condition and results of operations could be materially and adversely affected.

A decrease in deferred tax assets, net of valuation allowance, due to a change in our estimation of future taxable income or change in Japanese tax policy could adversely affect our financial condition and results of operations.

We recorded deferred tax assets, net of valuation allowance, based on a reasonable estimation of future taxable income in accordance with applicable accounting standards. Our financial condition and results of operations could be materially and adversely affected if our deferred tax assets decrease due to a change in our estimation of future taxable income, a change in tax rate as a result of tax system revisions or other factors. Because we consider the sale of available-for-sale securities to be a qualifying tax-planning strategy, turmoil in financial markets such as significant declines in stock prices could lead to a decrease in our estimated future taxable income.

Financial transactions entered into for hedging and other similar purposes could adversely affect our financial condition and results of operations.

The accounting and valuation methods applied to credit and equity derivatives and other financial transactions that we enter into for hedging and credit risk mitigation purposes are not always consistent with the accounting and valuation methods applied to the assets that are being hedged. Consequently, in some cases, due to changes in the market or otherwise, losses related to such financial transactions during a given period may adversely affect net income, while the corresponding increases in the value of the hedged assets do not have an effect on net income for such period. As a result, our financial condition and results of operations could be materially and adversely affected during the period.

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Failure to maintain capital adequacy ratios above minimum required levels, as a result of the materialization of risks or regulatory changes, could result in restrictions on our business activities.

We endeavor to maintain sufficient levels of capital adequacy ratios, which are calculated pursuant to standards set forth by Japan’s Financial Services Agency and based on Japanese GAAP, taking into account our plans for investments in risk-weighted assets, the efficiency of our capital structure and other factors. However, our capital adequacy ratios could decline in the future, including as a result of the materialization of any of the risks enumerated in these “Risk Factors” and changes to the methods we use to calculate capital adequacy ratios. Also, there are regulatory adjustments such as goodwill and other intangibles, deferred tax assets, investments in the capital of banking, financial and insurance entities etc., that are deducted from our regulatory capital under certain conditions. Our or our banking subsidiaries’ regulatory capital and capital adequacy ratios could decline due to such regulations.

In addition, if the framework set by the Basel Committee on Banking Supervision, upon which the Financial Services Agency’s rules concerning banks’ capital adequacy ratios are based, is changed or if the Financial Services Agency otherwise changes its banking regulations, we might not be able to meet the minimum regulatory requirements for capital adequacy ratios. For example, in December 2010, the Basel Committee on Banking Supervision issued its Basel III rules text, which presents the details of global regulatory standards on bank capital adequacy and liquidity. In March 2012, the Financial Services Agency published revisions to its capital adequacy guidelines which generally reflect rules in the Basel III- text and began phasing them in from March 31, 2013. The Basel Committee on Banking Supervision reviewed the risk measurement method and other rules and published the finalized Basel III reforms in December 2017. Regulations based on the review are expected to be phased in from 2022.

Furthermore, we have been named one of the global systemically important banks (“G-SIBs”) and have become subject to additional capital requirements since March 2016. The group of G-SIBs will be updated annually and published by the Financial Stability Board (“FSB”) each November. The FSB published the final standard requiring G-SIBs to maintain total loss-absorbing capacity (“TLAC”) in November 2015, and G-SIBs will be required to meet the minimum TLAC requirement from 2019.In addition, the Financial Services Agency published a policy to develop a framework in connection with such requirements in Japan in April 2016, and a revised version of this document was published in April 2018. Based on this policy, the Financial Services Agency intends that Mizuho Financial Group be subject to the TLAC regulations from March 31, 2019.

If the capital adequacy ratios of us and our banking subsidiaries fall below specified levels, the Financial Services Agency could require us to take corrective actions, including, depending on the level of deficiency, the submission of an improvement plan that would strengthen our capital base, a restriction on the outflow of capital, a reduction of our total assets or a suspension of a portion of our business operations. In addition, some of our banking subsidiaries are subject to capital adequacy regulations in foreign jurisdictions such as the United States, and our business could be adversely affected if their capital adequacy ratios fall below specified levels.

Downgrades in our credit ratings could have negative effects on our funding costs and business operations.

Credit ratings are assigned to Mizuho Financial Group, our banking subsidiaries and a number of our other subsidiaries by major domestic and international credit rating agencies. The credit ratings are based on information furnished by us or obtained by the credit rating agencies from independent sources and are also influenced by credit ratings of Japanese government bonds and general views regarding the Japanese financial system as a whole. The credit ratings are subject to revision, suspension or withdrawal by the credit rating agencies at any time. A downgrade in our credit ratings could result in, among other things, the following:

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As a result, our business, financial condition and results of operations could be materially and adversely affected.

For example, the additional collateral requirement in connection with our derivative contracts, absent other changes, assuming a downgrade occurred on March 31, 2018, would have been approximately ¥3.0 billion for a one-notch downgrade and approximately ¥6.3 billion for a two-notch downgrade.

Our business will be adversely affected if we encounter difficulties in raising funds.

We rely principally on deposits and bonds as our funding sources. In addition, we also raise funds in the financial markets. Our efforts to maintain stable funding, such as setting maximum limits on financial market funding and monitoring our liquidity position to apply appropriate funding policies, may not be sufficient to prevent significant increases in our funding costs or, in the case mainly of foreign currencies, cash flow problems if we encounter difficulties in attracting deposits or otherwise raising funds. Such difficulties could result, among other things, from any of the following:

Our Medium-term Business Plan and other strategic initiatives and measures may not result in the anticipated outcome.

We have been implementing strategic initiatives and measures in various areas. In May 2016, we announced our Medium-term Business Plan for the three fiscal years ending March 31, 2019. Also, in November 2017, with the aim of achieving sustainable growth and maintaining and strengthening our competitive advantages over the long term, we developed a basic principle of structural reforms.

However, we may not be successful in implementing such initiatives and measures, or even if we are successful in implementing them, the implementation of such initiatives and measures may not have their anticipated effects. In addition, we may not be able to meet the key targets announced due to these or other factors, including, but not limited to, differences in the actual economic environment compared to our assumptions, as well as the risks enumerated in these “Risk Factors.”

For further information of our Medium-term Business Plan, see “Item 4. Business Overview –General and structural reforms.”

We will be exposed to new or increased risks as we expand the range of our products and services.

We offer a broad range of financial services, including banking, trust, securities and other services. As the needs of our customers become more sophisticated and broader in scope, and as the Japanese financial industry continues to be deregulated, we have been entering into various new areas of business, including through various business and equity alliances, which expose us to new risks. While we have developed and intend to maintain risk management policies that we believe are appropriate to address such risks, if a risk materializes in a manner or to a degree outside of our expectations, our business, financial condition and results of operations could be materially and adversely affected.

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We are subject to various laws and regulations, and violations could result in penalties and other regulatory actions.

Our business and employees in Japan are subject to various laws and regulations, including those applicable to financial institutions as well as general laws applicable to our business activities, and we are under the regulatory oversight of the Financial Services Agency. Our businesses outside of Japan are also subject to the laws and regulations of the jurisdictions in which they operate and are subject to oversight by the regulatory authorities of those jurisdictions.

Our compliance and legal risk management structures are designed to prevent violations of such laws and regulations, but they may not be effective in preventing all violations.

Violations of laws and regulations could result in regulatory action and harm our reputation, and our business, financial condition and results of operations could be materially and adversely affected.

Employee errors and misconduct could subject us to losses and reputational harm.

Because we process a large number of transactions in a broad range of businesses, we are subject to the risk of various operational errors and misconduct, including those caused by employees. Our measures to reduce employee errors, including establishment of operational procedures, regular reviews regarding compliance with these procedures, employee training and automation of our operations, may not be effective in preventing all employee errors and misconduct. Significant operational errors and misconduct could result in losses, regulatory actions or harm to our reputation. As a result, our business, financial condition and results of operations could be materially and adversely affected.

Problems relating to our information technology (IT) systems could significantly disrupt our business operations.

We depend significantly on information technology systems with respect to almost all aspects of our business operations. Our information technology systems network, including those relating to bank accounting and cash settlement systems, interconnects our branches and other offices, our customers and various clearing and settlement systems located worldwide. Our efforts to sustain stable daily operations and development of contingency plans for unexpected events, including the implementation of backup and redundancy measures. Mizuho Bank, Ltd. and Mizuho Trust & Banking Co., Ltd. are working on shifting to our next-generation accounting system for the purpose of improving our customer service capabilities. In shifting to this new system, we plan to progress gradually from the viewpoint of ensuring safety and a steady transition, such as multiple temporary suspensions of our online services. However, we may not be able to prevent significant disruptions to our information technology systems caused by, among other things, human error, accidents and development and renewal of computer systems. In the event of any such disruption, our business, financial condition and results of operations could be materially and adversely affected due to information leaks, malfunctions or disruptions in our business operations, liability to customers and others, regulatory actions or harm to our reputation.

Problems relating to cyber attacks could significantly impair our ability to protect our customer’s private information and disrupt our business operations.

Our business depends on the secure processing, storage and transmission of confidential and other information within our global IT systems. There have been a number of highly publicized cases involving financial services companies, consumer-based companies, governmental agencies and other organizations reporting the unauthorized disclosure of client, customer or other confidential information in recent years, as well as cyber attacks involving the dissemination, theft and destruction of corporate information or other assets, as a result of failure by employees or contractors to follow procedures or as a result of actions by third parties, including actions by foreign governments.

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As we and our outside contractors continue to be the target of unauthorized access attacks, mishandling or misuse of information, computer viruses or malware, cyber attacks designed to obtain confidential information, destroy data, disrupt or degrade service, sabotage systems or cause other damage, denial of service attacks, data breaches and other events, there can be no assurance that we will not suffer any losses or other consequences in the future as a result of significant incidents due to these cyber attacks. Although our Cyber Incident Response Team (CIRT) has led the implementation of, and continuously endeavors to upgrade, our protective measures using advanced technologies, our IT systems, software and computer networks may be vulnerable to unauthorized access, misuse, computer viruses or other malicious code and other events that could have a security impact. Due to the complexity and interconnectedness of our global IT systems, these protective measures may be ineffective, and the process of enhancing our protective measures can itself create a risk of system disruption and security issues, and there can be no assurance that our current or future countermeasures will be sufficient to prevent or mitigate the impact of such incidents.

A cyber attack, information or security breach or a technology failure that involves us or our outside contractors could jeopardize our or our customers’, employees’, partners’, vendors’ or counterparties’ personal, confidential, proprietary or other information processed and stored in, and transmitted through, our and our outside contractors’ IT systems. Furthermore, such events could cause interruptions or malfunctions in our, our customers’, employees’, partners’, vendors’, counterparties’ or outside contractor’s operations, as well as the unauthorized release, gathering, monitoring, misuse, loss or destruction of confidential, proprietary and other information of ours, our employees, our customers or of other third parties. Any of these events could result in reputational damage with our customers and the market, customer dissatisfaction or financial losses, any of which could adversely affect our financial condition and results of operations.

Our reputation could be harmed and we may be subject to liabilities and regulatory actions if we are unable to protect personal and other confidential information, including as a result of cyber attacks.

We handle various confidential or non-public information, including those of our individual and corporate customers, in the ordinary course of our business. The information management policies we maintain and enforce to prevent information leaks and improper access to such information, including those that we require of our outside contractors and those designed to meet the strict requirements of the Personal Information Protection Law of Japan, may not be effective in preventing all such problems. Leakage of important information in the future, including as a result of cyber attacks, could result in liabilities and regulatory actions and may also lead to significant harm to our reputation. In addition, recent or future regulatory changes, such as the Japan Amended Act on the Protection of Personal Information, the EU General Data Protection Regulation and the UK Competition and Markets Authority’s Open Banking standard, increase the risks relating to our ability to comply with rules that impact our ability to protect information. Non-compliance with such regulations could result in regulatory proceedings, litigation, enforcement or the imposition of fines or penalties. As a result, our business, financial condition and results of operations could be materially and adversely affected.

Our business would be harmed if we are unable to attract and retain skilled employees.

Many of our employees possess skills and expertise that are important to maintain our competitiveness and to operate our business efficiently. We may not be successful in attracting and retaining sufficient skilled employees through our hiring efforts and training programs aimed to maintain and enhance the skills and expertise of our employees, in which event our competitiveness and efficiency could be significantly impaired. As a result, our business, financial condition and results of operations could be materially and adversely affected.

Our failure to establish, maintain and apply adequate internal controls over financial reporting could negatively impact investor confidence in the reliability of our financial statements.

As a New York Stock Exchange-listed company and an SEC registrant, we have developed disclosure controls and procedures and internal control over financial reporting pursuant to the requirements of the

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Sarbanes-Oxley Act of 2002 and rules and regulations of the SEC promulgated pursuant thereto. Our management reports on, and our independent registered public accounting firm attests to, the effectiveness of our internal controls over financial reporting, as required, in our annual report on Form 20-F. In addition, our management is required to report on our internal control over financial reporting, and our independent registered public accounting firm is required to provide its opinion concerning the report of our management, in accordance with the Financial Instruments and Exchange Act of Japan. To the extent any issues are identified through the foregoing processes, there can be no assurance that we will be able to address them in a timely manner or at all. Furthermore, even if our management concludes that our internal control over financial reporting are effective, our independent registered public accounting firm may still be unable to issue a report that concludes that our internal control over financial reporting are effective. In either case, we may lose investor confidence in the reliability of our financial statements.

We are subject to risk of litigation and other legal proceedings.

As a financial institution engaging in banking and other financial businesses in and outside of Japan, we are subject to the risk of litigation for damages and other legal proceedings in the ordinary course of our business. Adverse developments related to legal proceedings could have a material adverse effect on our financial condition and results of operations.

Our risk management policies and procedures may not adequately address unidentified or unanticipated risks.

We devote significant resources to strengthen our risk management policies and procedures. Despite this, and particularly in light of the rapid evolution of our operations, our policies and procedures designed to identify, monitor and manage risks may not be fully effective. Some of our methods of managing risks are based upon our use of observed historical market behavior. As a result, these methods may not accurately predict future risk exposures, which could be significantly greater than the historical measures indicate. If our risk management policies and procedures do not function effectively, our financial condition and results of operations could be materially and adversely affected.

Transactions with counterparties in Iran and other countries designated by the U.S. Department of State as state sponsors of terrorism may lead some potential customers and investors to avoid doing business with us or investing in our securities or have other adverse effects.

U.S. law generally prohibits U.S. persons from doing business with countries designated by the U.S. Department of State as state sponsors of terrorism (the “Designated Countries”), which currently includes Iran, Sudan, Syria and North Korea and we maintain policies and procedures to comply with applicable U.S. laws. Our non-U.S. offices engage in transactions relating to the Designated Countries on a limited basis and in compliance with applicable laws and regulations, including trade financing with respect to our customers’ export or import transactions and maintenance of correspondent banking accounts. In addition, we maintain a representative office in Iran. We do not believe our operations relating to the Designated Countries are material to our business, financial condition or results of operations. We maintain policies and procedures to ensure compliance with applicable Japanese and U.S. laws and regulations.

The laws and regulations applicable to dealings involving the Designated Countries are subject to further strengthening or changes. If the U.S. government considers that our compliance measures are inadequate, we may be subject to regulatory action which could materially and adversely affect our business. In addition, we may become unable to retain or acquire customers or investors in our securities, or our reputation may suffer, potentially having adverse effects on our business or the price of our securities.

We may be subject to risks related to dividend distributions.

As a holding company, we rely on dividend payments from our banking and other subsidiaries for almost all of our income. As a result of restrictions, such as those on distributable amounts under Japan’s Companies Act,

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or otherwise, our banking and other subsidiaries may decide not to pay dividends to us. In addition, we may experience difficulty in making, or become unable to make, dividend payments to our shareholders and dividend or interest payments on capital securities issued by our group due to the deterioration of our results of operations and financial condition and/or the restrictions under the Companies Act or due to the strengthening of bank capital regulations. For more information on restrictions to dividend payments under the Companies Act and bank capital regulations, see “Item 10.B. Additional Information—Memorandum and Articles of Association” and “Item 4.B. Business Overview—Supervision and Regulation—Japan.”

We may be adversely affected if economic or market conditions in Japan or elsewhere deteriorate.

We conduct a wide variety of business operations in Japan as well as overseas, including in the United States, Europe and Asia. If general economic conditions in Japan or other regions were to deteriorate or if the financial markets become subject to turmoil, we could experience weakness in our business, as well as deterioration in the quality of our assets. We are currently facing significant uncertainties in the economic environment such as U.S. governmental policies, political concerns in Europe, the economic outlook for China and heightening geopolitical risks. Significant changes in general economic conditions or financial markets due to the effect of changes in these risks could materially and adversely affect our financial condition and results of operations.

Amendments and other changes to the laws and regulations that are applicable to us could have an adverse effect on us.

We are subject to general laws, regulations and accounting rules applicable to our business activities in and outside of Japan. We are also subject to various laws and regulations applicable to financial institutions such as the Banking Act, including capital adequacy requirements, in and outside of Japan. If the laws and regulations that are applicable to us are amended or otherwise changed, such as in a way that restricts us from engaging in business activities that we currently conduct or that requires us to incur additional costs related to our IT systems, our business, financial condition and results of operations could be materially and adversely affected.

Intensification of competition in the market for financial services in Japan could have an adverse effect on us.

We offer comprehensive financial services globally, centered on Banking, Trust Banking and Securities and are subject to intense competition both domestically and internationally with large financial institutions, non-bank financial institutions and others. In addition, as a result of technological advances called “FinTech,” an increasing number of companies have recently been crossing industry lines and entering the field of finance, and it is possible that the competitive environment surrounding us may further intensify. Moreover, due to the reforms to financial regulations made in recent years, it may become difficult to differentiate strategies between us and our competitors, resulting in the intensification of competition in specific businesses.

If we are unable to respond effectively to current or future competition, our business, financial condition and results of operations could be adversely affected. In addition, intensifying competition and other factors could lead to reorganization within the financial services industry, and this could have an adverse effect on our competitive position or otherwise adversely affect the price of our securities.

Our business could be significantly disrupted due to natural disasters, accidents or other causes.

Our headquarters, branch offices, information technology centers, computer network connections and other facilities are subject to the risk of damage from natural disasters such as earthquakes and typhoons as well as from acts of terrorism and other criminal acts. In addition, our business could be materially disrupted as a result of an epidemic such as new or reemerging influenza infections. Our business, financial condition and results of operations could be adversely affected if our recovery efforts, including our implementation of contingency plans

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that we have developed such as establishing back-up offices, are not effective in preventing significant disruptions to our business operations caused by such natural disasters and criminal acts. Additionally, massive natural disasters such as the March 2011 Great East Japan Earthquake may have various adverse effects, including a deterioration in economic conditions, declines in the business performance of many of our corporate customers and declines in stock prices. As a result, our financial condition and results of operations could be materially and adversely affected due to an increase in the amount of problem loans and credit-related costs as well as an increase in unrealized losses on, or losses from sales of, equity securities and financial products.

Negative rumors about us could have an adverse effect on us.

Our business depends on maintaining the trust of depositors and other customers and market participants. Negative rumors about us, spread through media coverage, communications between market participants, Internet postings or otherwise, could lead to our customers and market participants believing factually incorrect information about us and harm our reputation. In the event we are unable to dispel such rumors or otherwise restore our reputation, our business, financial condition, results of operations and the price of our securities could be materially and adversely affected.

Risks Related to Owning Our Shares

Rights of shareholders under Japanese law may be more limited than under the law of other jurisdictions.

Our articles of incorporation, our regulations of board of directors and Japan’s Companies Act govern our corporate affairs. Legal principles relating to such matters as the validity of corporate procedures, directors’ and officers’ fiduciary duties and shareholders’ rights may be different from or less clearly defined than those that would apply if we were incorporated in another jurisdiction. For example, under the Companies Act, only holders of 3% or more of the total voting rights or total outstanding shares are entitled to examine our accounting books and records. Shareholders’ rights under Japanese law may not be as extensive as shareholders’ rights under the law of jurisdictions within the United States or other countries. For more information on the rights of shareholders under Japanese law, see “Item 10.B. Additional Information—Memorandum and Articles of Association.”

It may not be possible for investors to effect service of process within the United States upon us or our directors, executive officers or senior management, or to enforce against us or those persons judgments obtained in U.S. courts predicated upon the civil liability provisions of the federal securities laws of the United States.

We are a joint stock corporation incorporated under the laws of Japan. Almost all of our directors, executive officers and senior management reside outside the United States. Many of the assets of us and these persons are located in Japan and elsewhere outside the United States. It may not be possible, therefore, for U.S. investors to effect service of process within the United States upon us or these persons or to enforce, against us or these persons, judgments obtained in the U.S. courts predicated upon the civil liability provisions of the federal securities laws of the United States. We believe that there is doubt as to the enforceability in Japan, in original actions or in actions to enforce judgments of U.S. courts, of claims predicated solely upon the federal securities laws of the United States.

Risks Related to Owning Our ADSs

As a holder of ADSs, you have fewer rights than a shareholder and you must act through the depositary to exercise these rights.

The rights of our shareholders under Japanese law to take actions such as voting their shares, receiving dividends and distributions, bringing derivative actions, examining our accounting books and records and exercising appraisal rights are available only to shareholders of record. Because the depositary, through its

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custodian, is the record holder of the shares underlying the ADSs, a holder of ADSs may not be entitled to the same rights as a shareholder. In your capacity as an ADS holder, you are not able to bring a derivative action, examine our accounting books and records or exercise appraisal rights, except through the depositary.

Foreign exchange rate fluctuations may affect the U.S. dollar value of our ADSs and dividends payable to holders of our ADSs.

Market prices for our ADSs may fall if the value of the yen declines against the U.S. dollar. In addition, the U.S. dollar amount of cash dividends and other cash payments made to holders of our ADSs would be reduced if the value of the yen declines against the U.S. dollar.

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4.A. History and Development of the Company

The Mizuho Group

The Mizuho group was created on September 29, 2000 through the establishment of Mizuho Holdings, Inc. as a holding company of our three predecessor banks, The Dai-Ichi Kangyo Bank, The Fuji Bank and The Industrial Bank of Japan. On October 1, 2000, the respective securities subsidiaries of the predecessor banks merged to form Mizuho Securities Co., Ltd. and the respective trust bank subsidiaries merged on the same date to form Mizuho Trust & Banking.

A further major step in the Mizuho group’s development occurred in April 2002 when the operations of our three predecessor banks were realigned through a corporate split and merger process under Japanese law into a wholesale banking subsidiary, the former Mizuho Corporate Bank, and a banking subsidiary serving primarily retail and small and medium-sized enterprise customers, the former Mizuho Bank. As an additional step for realigning the group structure, Mizuho Financial Group was established on January 8, 2003 as a corporation organized under the laws of Japan, and on March 12, 2003, it became the holding company for the Mizuho group through a stock-for-stock exchange with Mizuho Holdings, which became an intermediate holding company focused on management of the Mizuho group’s banking and securities businesses. The legal and commercial name of the company is Mizuho Financial Group, Inc.

In May 2003, we initiated a project to promote early corporate revitalization of customers in need of revitalization or restructuring and to separate the oversight of restructuring borrowers from the normal credit origination function. In July 2003, our three principal banking subsidiaries, the former Mizuho Corporate Bank, the former Mizuho Bank and Mizuho Trust & Banking each transferred loans, equity securities and other claims outstanding relating to approximately 950 companies to new subsidiaries that they formed. In October 2005, based on the significant reduction in the balance of impaired loans held by these new subsidiaries, which we call the “revitalization subsidiaries,” we deemed the corporate revitalization project to be complete, and each of the revitalization subsidiaries was merged into its respective banking subsidiary parent.

In the fiscal year ended March 31, 2006, we realigned our entire business operations into a Global Corporate Group, Global Retail Group and Global Asset and Wealth Management Group. In October 2005, in connection with this realignment, we established Mizuho Private Wealth Management Co., Ltd., a private banking subsidiary, and converted Mizuho Holdings on October 1, 2005 from an intermediate holding company into Mizuho Financial Strategy Co., Ltd., an advisory company that provides advisory services to financial institutions.

In May 2009, Mizuho Securities and Shinko Securities Co., Ltd. conducted their merger, with the aim of improving our service-providing capabilities to our clients and to offer competitive cutting-edge financial services on a global basis.

In September 2011, Mizuho Trust & Banking became a wholly-owned subsidiary of Mizuho Financial Group, Mizuho Securities became an unlisted subsidiary of the former Mizuho Corporate Bank and Mizuho Investors Securities became a wholly-owned subsidiary of the former Mizuho Bank, through their respective stock-for-stock exchanges. The purpose of these stock-for-stock exchanges is to further enhance the “group collective capabilities” by integrating group-wide business operations and optimizing management resources such as workforce and branch network.

In January 2013, Mizuho Securities and Mizuho Investors Securities merged in order to provide integrated securities services as the full-line securities company of the Mizuho group. Mizuho Securities aims to further strengthen collaboration among banking, trust banking and securities businesses of the group, expand the company’s customer base to enhance the domestic retail business, and rationalize and streamline management infrastructure.

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In April 2013, we turned Mizuho Securities, a consolidated subsidiary of Mizuho Financial Group, into a directly-held subsidiary of Mizuho Financial Group, whereby we moved to a new group capital structure, placing banking, trust banking, securities and other major group companies under the direct control of the holding company.

In July 2013, the former Mizuho Bank and the former Mizuho Corporate Bank merged, and the former Mizuho Corporate Bank, the surviving company, changed its trade name to Mizuho Bank, Ltd. The purpose of the merger is to become able to provide directly and promptly diverse and functional financial services to both the former Mizuho Bank and the former Mizuho Corporate Bank customers, utilizing the current “strengths” and “advantages” of the former Mizuho Bank and the former Mizuho Corporate Bank, and to continue to improve customer services by further enhancing group collaboration among the banking, trust and securities functions and, at the same time, to realize further enhancement of the consolidation of group-wide business operations and optimization of management resources, such as workforce and branch network, by strengthening group governance and improving group management efficiency.

In July 2016, with consideration of the rule of the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”) regarding the operations of foreign banking organizations with U.S. operations, we established a bank holding company, Mizuho Americas LLC, which holds our primary U.S.–based banking, securities and institutional custody services (trust banking) entities together under it, with the aim to proactively strengthen corporate governance and expand our profit base through the consistent implementation of our collaborative corporate and investment banking, securities and institutional custody services strategy in the United States in line with the global operation of our new in–house company system.

In December 2017, two subsidiaries of Mizuho Americas LLC, the former Mizuho Bank (USA) and the Mizuho Trust & Banking Co. (USA), merged. The merged entity, Mizuho Bank (USA), provides both banking services and trust services.

In October 2016, with a view to strengthening our respective asset management businesses, we and The Dai-ichi Life Insurance Company, Limited integrated the asset management functions of both groups, namely, DIAM Co., Ltd., the asset management function of Mizuho Trust & Banking, Mizuho Asset Management Co., Ltd. and Shinko Asset Management Co., Ltd., and formed a new company named Asset Management One Co., Ltd., a consolidated subsidiary of Mizuho Financial Group.

In March 2017, we, Sumitomo Mitsui Trust Holdings, Inc., Resona Bank, Limited as a subsidiary of Resona Holdings, Inc. and The Dai-ichi Life Insurance Company, Limited as a subsidiary of Dai-ichi Life Holdings, Inc. executed a memorandum of understanding to commence detailed analysis and negotiations in preparation for the management integration of Japan Trustee Services Bank, Ltd. (“JTSB”) and Trust & Custody Services Bank, Ltd. (“TCSB”). In March 2018, TCSB executed a management integration agreement with JTSB to carry out the management integration through incorporation of a holding company by joint share transfer. The purpose of the integration is to contribute to further growth in the domestic securities settlement market and domestic investment chain by realizing more stable and higher quality operations and strengthening its system development capabilities by seeking the benefits of scale.

Other Information

Our registered address is 1-5-5, Otemachi, Chiyoda-ku, Tokyo 100-8176, Japan, and our telephone number is 81-3-5224-1111.

4.B. Business Overview

General

We engage in banking, trust, securities and other businesses related to financial services.

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We launched our three-year medium-term business plan, the “Progressive Development of “One MIZUHO”—The Path to a Financial Services Consulting Group,” formulated for the three years beginning the fiscal year ended March 31, 2017. This plan aims for (i) further reinforcement of the “customer-focused” perspective that we have been promoting and (ii) the pursuit of “operational excellence,” as part of our effort to promote greater business improvement and efficiency. Through these efforts, we aim to further develop the “One MIZUHO” strategy by establishing a new business model as a “Financial Services Consulting Group.”

We are positioning our asset management function and our research and consulting functions as new pillars that supplement the banking, trust and securities functions, and by striving to provide the best possible and optimal services to customers for their improved satisfaction, we aim to become an indispensable partner for achieving sustainable growth of corporate customers and securing a promising future of retail customers.

With the aim of establishing this new business model, we have set forth five basic policies in the medium-term business plan. The five basic policies are supported by ten basic strategies, which are classified into business strategies, financial strategies and management foundations.

Our Objectives Under the Medium-Term Business Plan

By establishing a customer-focused business platform, we will form deeper relationships with our customers via our financial intermediary functions and our ability to take highly measured risks and build a future in economies and communities as a trusted financial partner in providing solutions for our customers. In the interest of building this new business model, we have established the following objectives in the medium-term business plan.

A Financial Services Consulting Group—The most trusted partner in solving problems and supporting the sustainable growth of customers and communities

Five Basic Policies

Ten Basic Strategies

Business strategies

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Financial strategies

Management foundations

In the fiscal year ended March 31 2018, the second year of the medium-term business plan, we adopted “accelerating the One MIZUHO strategy through commitment to customer-focused business operations and fundamental enhancement of productivity” as our operational policy and have worked together as a group in this direction.

First, in order to further promote the evolution of integrated, group-wide operations across banking, trust and securities functions to ensure that the business is managed on a customer-focused basis, we have enhanced our front-line capabilities, implemented prompt decision-making processes, increased the efficiency of group management and worked to strengthen our noninterest income business on a group-wide basis by providing solutions to issues that customers may face.

In addition, with respect to the fulfillment of fiduciary duties, in addition to our policies and action plans for each group company regarding the asset management-related business, we set and published quantitative key performance indicators to confirm the extent to which our fiduciary duties are being fulfilled and implemented various kinds of customer-focused measures.

Secondly, we have promoted “operational excellence” in order to improve productivity. With the aim of “improving operational efficiency” and “enhancing service value for customers by raising the sophistication of our operations,” we have streamlined head office operations and advanced our business process reform through the utilization of digital technologies such as robotic process automation (i.e., software that is capable of inputting, processing, collecting and checking data that requires simple judgment, which can be utilized for the automation of routine manual tasks) and employee mind-set reforms, etc.

Thirdly, we have actively worked on improving innovation. Under a new structure for promoting innovation, which the CDIO (Chief Digital Innovation Officer) is exclusively in charge of, we have advanced our initiatives by establishing Blue Lab Co., Ltd. for the purposes of creating next-generation business models and actual commercialization related businesses, and commenced “AI-based Score Lending,” (i.e., an individual consumer financing service that provides reference values for lending terms, such as interest rates and borrowing limits, based on AI-based score levels), one of the first FinTech services in Japan, provided by J.Score CO., LTD.

Fourthly, in order to contribute to the sustainable development of society and to create new corporate value, we have pursued a CSR initiative regarding environmental, societal and governance (ESG) issues. With respect to environment and society, we issued green bonds and developed a human rights policy in line with international standards, among other initiatives. With respect to governance, we became the first Japanese bank holding company for which the Chairman of the Board of Directors and the chairmen of the three legally-required committees are all outside directors, and each of Mizuho Bank, Ltd., Mizuho Trust & Banking Co., Ltd. and Mizuho Securities Co., Ltd. (the “Three Core Companies”) changed its corporate governance system from the “Company with Board of Company Auditors” structure to the “Company with Audit and Supervisory Committee” structure.

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Finally, with respect to legal compliance, we continued our various efforts, including severing transactions with anti-social elements and our countermeasures against money laundering and terrorist financing.

The business environment surrounding financial institutions continues to be challenging, and we anticipate it will undergo major structural changes over time. Under these circumstances, we will undertake fundamental structural reforms in our business structure, and, based on a ten-year time horizon, we will strive to secure our sustainable growth and continued competitive advantage.

We will utilize advanced technologies in accordance with our concept of open innovation to further develop our “One MIZUHO strategy” by, for example, (i) endeavoring to increase profit through actively pursuing collaborative engagement with other companies, not limited to financial activities, in order to create new business opportunities and (ii) endeavoring to strengthen cost competitiveness and enhance productivity while striving to optimize organization and staffing, restructure branch strategies and accomplish other related tasks.

In the fiscal year ending March 31, 2019, in order to address three material issues, “launching and implementing fundamental structural reforms,” “achieving the medium-term business plan” and “completing implementation of our next generation IT systems,” we are focusing our attention on progressively developing our “One MIZUHO strategy” by implementing changes to the structure and foundations of our business, further integrating our “customer first” principle into everything we do and fundamentally increasing productivity, and we will work to advance such strategy by placing emphasis on the points described below.

Increasing Our Earning Capacity through Fully Implementing Our Customer First Principle

Through strengthening customer contacts, ensuring awareness of customer needs and accomplishing other related tasks, we will work to further develop our “One MIZUHO strategy” by which group-wide operations are integrated and work to increase our earnings capacity on a group-wide basis by solving issues that need to be addressed. We will also work to fulfill our fiduciary duties with respect to the asset management-related business and incorporate customers’ voices and evaluations into the process of following our business plan in order to reflect them in our strategies and measures.

Selecting and Focusing on Certain Areas of Business

By improving the reasonable allocation of management resources in relation to the focus and streamline areas by which targets and markets are narrowed, we will work to make efficient use of our limited management resources and increase our earnings capacity. In the focus areas, we will work to expand the area and breadth of risk taking and will commence strengthening new and growing businesses.

Establishment of a Resilient Financial Base

By capturing signs of changes in the business environment and exercising flexible and effective control over our balance sheets, we will seek to optimize risk and return. With respect to the disposal of cross-shareholdings, we will work to achieve targets set forth in the medium-term business plan. In addition, by thoroughly reviewing our business processes through the pursuit of “operational excellence” and other similar efforts and by reviewing our working style, we will reform our cost structure.

Utilization of Technology and Data

We will strengthen our ability to develop and promote group-wide digital innovation strategies and will promote efforts towards the utilization of technology and data, and the co-creation of value through collaboration with other companies in each area of productivity enhancement through upgraded business processes, the reform of business foundation and the creation of new businesses.

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Transforming Our Corporate Culture into One that Encourages the Active Participation of Our Workforce to Support a Stronger Mizuho

We will seek to establish and spread the “fundamental reform of HR management” by promoting, among other matters, HR management that respects employees’ individuality, active participation of a diverse workforce, a work-life balance initiative to provide flexible and varied work arrangements and the “health and productivity management” initiative. We will also proceed with initiatives toward the transformation of our corporate culture, such as mind-set reforms that encourage employees to take on challenges and eliminate inward-facing energy.

Completion of Implementation of our Next Generation IT Systems

As our most important and largest systems project, we will take all possible measures to complete the implementation of our next-generation IT systems in a safe and steady manner.

In addition to the foregoing efforts, we will also continue to endeavor to upgrade our risk appetite framework and strengthen our attitude toward governance and compliance with laws and regulations, including severance of business relations with anti-social elements.

As already announced, Trust & Custody Services Bank, Ltd., which is our consolidated subsidiary, has executed a management integration agreement with Japan Trustee Services Bank, Ltd. to the effect that both parties will carry out management integration. The integrated company will aim to be the top trust bank in Japan specializing in asset administration services that meet a wide variety of customer needs regarding asset administration services.

We will also continue to consider the possibility of consolidation between Mizuho Bank and Mizuho Trust & Banking.

We will contribute to the sustainable development of society by pursuing a CSR initiative toward addressing social challenges, such as the Sustainable Development Goals (i.e., the international goals from 2016 to 2030 that were set forth in the “2030 Agenda for Sustainable Development” adopted by the UN Summit held in September 2015), on a group-wide basis and further promote our corporate values.

In addition, we will continue to implement measures to further improve the value of our brand through means such as positive communication with various stakeholders and extending support to the Olympic and Paralympic Games Tokyo 2020 (Mizuho is a Tokyo 2020 Gold Banking Partner).

Group Operations

Group Management Structure

We operate our group through five in-house companies, which determine and promote strategies group-wide across banking, trust, securities and other business areas according to the attributes of customers, and two units that support all of the in-house companies.

Retail & Business Banking Company

The Retail & Business Banking Company is in charge of the services for individual customers, small- and medium-sized enterprises and middle-market firms.

For individual customers, the Retail & Business Banking Company will strive to improve our capacity to provide consulting services, including asset management and asset succession, while working on the development and provision of convenient services by leveraging advanced technologies and forming alliances with other companies and institutions.

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While fulfilling our fiduciary duties, to promote the change “from savings to investments” and in addition to the consulting services that combine banking, trust and securities functions, we offer our customers asset formation support that utilizes advanced technologies, such as AI-powered asset management advisory services and asset management support utilizing remote channels, etc. Accordingly, in addition to strengthening our efforts related to NISA, a tax exemption program for small investments, and iDeCo, an individual-type defined contribution pension plan, we will strengthen financial education through seminars.

Furthermore, to support the smooth asset succession, we provide services such as inheritance distribution service and testamentary-trust that utilize trust function. We have also expanded our line of products such as family trusts and annual fund giving trusts.

With respect to the loan business, we have expanded our line of housing loan and card loan products and offer various products and services in response to each customer’s life stage, including the development of new internet-based services.

We also provide products/services to officers and employees of our corporate clients, such as opening account for payrolls, providing housing loans, management of retirement payments, etc.

In addition, in an effort to increase customer convenience, we have expanded our branch network throughout Japan (Mizuho Bank: 465; Mizuho Trust & Banking: 60; Mizuho Securities: 275; each as of March 31, 2018) and our ATM network (approximately 7,200 locations as of March 31, 2018, including ATMs shared with AEON Bank). We also have 166 of Mizuho Securities “Planet Booths,” which are located in the branches and offices of Mizuho Bank, and 23 of Mizuho Trust & Banking “Trust Lounges,” which are located in the branches and offices of Mizuho Bank, as of March 31, 2018.

We have also made efforts to enhance customer convenience by offering new services that utilize advanced scientific and digital technologies, as well as by enhancing the quality of our internet and smart phone services.

Further, we undertake the business related to lottery tickets, such as the sales of lottery tickets issued by prefectures and ordinance-designated cities.

For small- and medium-sized enterprises and middle-market firms, the Retail & Business Banking Company provides solutions with respect to both types of needs: management issues such as business development, and personal issues of customers who are business owners, such as asset inheritance and management, etc.

Starting from consulting services, we offer multi-layered solutions in response to the various development stages of our customers’ businesses through the combined strength of our banking, trust, securities, asset management and research and consulting functions, based on a customer-focused approach.

Specifically, we offer syndicated loans, advisory services related to overseas expansions, mergers and acquisitions-related services, and business matching services, depending on the customers’ business strategies, in addition to brokering financial products and expanding the customer base for trustee business for defined contribution pension plans, combining traditional financial services and advanced advisory services.

Furthermore, due to the aging of Japanese business owners, business succession and asset inheritance has become a matter of urgency. Using our succession and property know-how, we actively offer solutions for optimal and smooth business succession and asset inheritance, including the inheritance of business ownership and corporate stock as well as corporate reorganization, addressing both individual and corporate needs.

Moreover, we leverage our existing customer base to support the growth of innovative companies that show future promise by means of finance and other solutions.

In this manner, we aim to grow with our customers into a “Financial Services Consulting Company.”

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Corporate & Institutional Company

The Corporate & Institutional Company engages in relationship management for our customers that are large corporations, financial institutions and public sector businesses in Japan.

For large corporate customers, based on our solid customer relationships and utilizing our global industry knowledge, we offer group-wide financial solutions that are tailored for each customer, such as syndicated loans, bonds and M&A advisory, etc., on a global basis to meet their needs in fund-raising, investment, management and financial strategies.

Mizuho Bank and Mizuho Securities have introduced the dual-hat structure in several offices in Japan. They collaborate to provide our customers with solutions based on their capital management, business strategy and financial strategy on a global basis.

Mizuho Bank and Mizuho Trust & Banking together provide solutions related to real estate, where we have a leading track record in the industry in Japan. They also work together in the areas of pension, asset securitization, securities management, stock transfer agent, consulting, etc., in response to our customers’ diversified needs for investment and asset optimization.

We are also strengthening business structures across the group by increasing personnel and reframing the business structure of Mizuho Securities, as well as strengthening the consulting functions of Mizuho Trust & Banking.

Further, we are proactively providing risk money to develop next-generation industries and growth industries.

For financial institutions, we offer advisory services and solutions, such as advice on financial strategy and proposals on various investment products, by concentrating our various financial expertise from each group company to meet the increasingly sophisticated and diversified needs of customers.

For public sector customers, as a leading bank with a wealth of experience and a solid track record, we provide optimal financial services group-wide that include funding support as a trustee and underwriter of public bonds and services as a designated financial institution. In addition, in the field of revitalizing rural regions in Japan, an important matter to the Japanese economy, we engage in Public Private Partnerships/Private Finance Initiatives (PPP and PFI) projects in collaboration with regional financial institutions, national and regional government entities and their affiliates.

Through these endeavors, we aim to be our customers’ most trusted partner.

Global Corporate Company

The Global Corporate Company serves non-Japanese companies and Japanese companies operating outside Japan.

For our Japanese corporate customers, we provide integrated support both in and outside Japan to help them expand their overseas operations. We offer highly specialized services that use our advanced financial technologies and expertise. Particularly in Asia, we support Japanese corporate customers developing new markets by offering advisory and other services.

We are also expanding business with non-Japanese corporate customers. We use our global network to support U.S. and European global companies developing business in Asia as well as Asian multinational enterprises expanding within Asia. For our non-Japanese corporate customers, we are pursuing the Global 300

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Strategy, which involves focusing on a group of approximately 300 blue-chip companies around the world. Taking the characteristics of each industry sector into consideration, we take a focused approach based on our know-how and insight on the business and financial aspects. Through a close relationship with top management, we aim to develop long-term relationships with our customers. Our market presence within the United States continues to grow, including in the area of investment-grade corporate debt underwriting, based on the enhanced sophistication in the collaboration between our banking and securities functions.

Meanwhile, we are enhancing our support to clients by expanding our global office network and strengthening the framework to support our customers’ business outside Japan. We have recently opened the Mizuho Bank Phnom Penh Branch (under the Bangkok Branch), Washington, D.C. Representative Office, and Dallas Representative Office (under the New York Branch) as well as the Mizuho Bank Mexico, S.A., Leon Office, the Mizuho Securities Asia Limited, Seoul Branch and the Mizuho International plc, Dubai Branch.

We are forming business alliances with government-affiliated institutions and financial institutions to provide up-to-date local information to our customers. We are also enhancing our service framework to address the diverse business needs of customers, including post-entry support.

As we see major changes in the global economy and the regulatory framework, we aim to achieve sustainable growth by improving our business portfolio, promoting cross-selling and strengthening our business and management base.

Global Markets Company

The Global Markets Company operates sales and trading business to meet the risk hedging and investment needs of a wide range of customers, from individuals to institutional investors, by offering a comprehensive range of market-related products. We also operate asset liability management and investment business with respect to bonds and equities.

With respect to the sales and trading business, through a management structure based on customer segments, we offer detailed products and services to meet the diverse needs of our customers and support their global business by integrating our banking, trust and securities functions and utilizing our global network.

Specifically, we are strengthening our contact with customers at branches for our customers that are small and medium-sized enterprises and middle market firms, and we are providing ideas that reflect market perspectives for transactions involving large corporations and financial institutions. For investors such as hedge funds and asset managers, we use our comprehensive strength in the banking and securities to provide products that meet our customers’ needs.

With respect to our asset liability management, we contribute to the stabilization of foreign currency liquidity management. Also, as for the investment business, we earn stable revenue by constructing well diversified portfolio and changing allocation appropriately with using our early warning control to reflect the changes of market environment flexibly.

In addition, we are also actively working on the advancement of our market business through the use of advanced technology such as AI.

The Global Markets Company is aiming to become a top-class Asian player in the global market by utilizing its capacity to offer a wide range of products based on the collaboration among the banking, trust and securities functions.

Asset Management Company

The Asset Management Company works with our banking, trust and securities functions as well as Asset Management One to meet the needs of a wide range of customers, from individuals to institutional investors, by providing products and services while fulfilling its fiduciary duties.

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For individual customers, we offer investment products that contribute to their medium- to long-term asset formation.

For institutional investors such as pension funds, we offer consulting services to meet their diversified and sophisticated asset management needs.

We offer our customers investment products that are best suited to them through Mizuho Alternative Investments, our New York-based hedge fund manager, Mizuho Global Alternative Investments, our Tokyo-based financial gatekeeper, Eurekahedge, our Singapore-based hedge fund database provider, and Matthews Asia, an independent, privately owned firm and the largest dedicated Asia investment specialist in the U.S.

In addition, in various product fields, we are focusing on developing and offering products through collaboration with BlackRock, Inc. and Partner Group AG.

The Asset Management Company aims to contribute to the revitalization of domestic financial assets through the foregoing approaches.

Global Products Unit

The Global Products Unit cooperates with each of the in-house companies in providing solutions to customers, such as advice on business and financial strategies, financing support, domestic and foreign exchange and settlement, by making full use of its expertise.

In the investment banking business we provide sophisticated financial solutions mainly in the business areas of mergers and acquisitions, real estate, asset finance, project finance and corporate finance.

In the mergers and acquisitions business, with an aim to increase the corporate value of our customers, we offer sophisticated solutions in response to our customers’ needs, mainly in the areas of cross-border mergers and acquisitions, business succession and management buyouts.

In the real estate business, by taking full advantage of our extensive knowledge and skills developed through the collaboration of our group companies, we offer various real estate-backed financing methods and real estate-related investment strategy support.

In the asset finance business, by strengthening the collaboration between banking, trust and securities functions and by arranging customers’ asset securitization, we satisfy their demands such as diversification of fund-raising sources and improvement of financial indices achieved by removing assets from their balance sheet.

In the project finance business, we provide various financial products and services internationally, including long-term loan facilities for large-scale mining and public infrastructure development, and domestically, including loans for renewable energy-related projects and arrangement of PFI/PPP deals. In addition, we offer investment opportunities to institutional investors through our managed infrastructure debt funds.

In the corporate finance business, we proactively provide a wide variety of fund raising solutions in the syndicated loan and debt and equity capital markets.

In the transaction business we provide solutions related to domestic exchange settlement, foreign exchange, cash management, trade finance, yen correspondence settlement and yen securities custody, global custody, asset management and stock transfer agent services.

For our corporate customers in the transaction business, we offer various financial services and products such as online banking, cash management solutions, Renminbi-denominated services and trade finance on a global basis.

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For financial institutions and institutional investors, we promote custody, global custody and yen correspondence settlement, asset management and stock transfer agent services.

In addition, we are further expanding our range of services in collaboration with our group companies and leveraging the latest technological innovations.

The Global Products Unit aims to support the group-wide goal of becoming a “Financial Services Consulting Group” by building a solid products platform.

Research & Consulting Unit

The Research & Consulting Unit, the fifth pillar for becoming a “Financial Services Consulting Group,” offers both in-house and customer research and consulting functions through “One Think Tank,” in collaboration with each of the in-house companies.

In the research field, we conduct deep investigations and analyses widely ranging from macro-economics to industry and business trends, and we also offer public policy advice based on such investigations and analyses.

In the consulting field, we also offer a wide range of functions to help solve various issues that companies face, including those regarding management/financial strategy, business/asset succession and IT systems, as well as social issues within the public sector, including the environment, energy, infrastructure and health care.

With increased global economic and social uncertainties, as well as the diversification of management issues for our customers and social challenges, our customers’ expectations of the unit’s research and consulting functions are rising. To better meet such a business environment, we will focus on the following two areas:

Through such efforts, our “One Think Tank” teams of experts are tackling a variety of new areas and further strengthening intra-group collaboration in order to contribute to the further development of our customers and society as the “source of value creation.”

Competition

We engage in banking, trust banking, securities and other businesses related to financial services and face strong competition in all of those areas of businesses partly due to deregulation of the Japanese financial industry.

Our major competitors in Japan include:

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In global markets, we face competition with other commercial banks and other financial institutions, particularly major global banks and the leading local banks in those financial markets outside Japan in which we conduct business.

Japanese Banking and Securities Industry

Private banking institutions in Japan are normally classified into two categories (the following numbers are based on information published by the Financial Services Agency, available as of June 28, 2018): (i) ordinary banks, of which there were 122, not including foreign commercial banks with banking operations in Japan; and (ii) trust banks, of which there were 15, including Japanese subsidiaries of foreign financial institutions and subsidiaries of Japanese financial institutions.

Ordinary banks consist mainly of city banks and regional banks. City banks, including Mizuho Bank, are based in large cities, operate domestically on a nation-wide scale through networks of branch offices and have strong links with large corporate customers in Japan. In light of deregulation and other competitive factors, however, many of these banks have placed increasing emphasis on other markets, including retail banking, small and medium-sized enterprise banking, international operations and investment banking. Regional banks are based in one of the prefectures of Japan and are generally much smaller in terms of total assets than city banks. In recent years, as a consequence of changes in the business environment, the number of regional banks that integrate their businesses with other regional banks is increasing. Customers of regional banks, other than local retail customers, include mostly regional enterprises and local public utilities, although regional banks also lend to large corporations. In addition to these types of banks, new retail-oriented banks have emerged in recent years, including Internet banks and banks specializing in placing their ATMs in convenience stores and supermarkets without maintaining a branch network.

Trust banks, including Mizuho Trust & Banking, are engaged in trust services in relation to, among others, money trust, pension trust and real estate trust services, in addition to banking business.

Based on information published by the Financial Services Agency, available as of [May 8], 2018, there were 56 foreign banks operating banking businesses in Japan. These banks are subject to a statutory framework similar to the regulations applicable to Japanese domestic banks. Their principal sources of funds come from their overseas head offices or other branches.

A number of government financial institutions, organized in order to supplement the activities of the private banking institutions, have been in the process of business and organizational restructuring in recent years. In October 2008, some of the government financial institutions were consolidated to form Japan Finance Corporation, which mainly provides financing for small and medium-sized enterprises and those engaged in agriculture, forestry and fishery, and also provides export financing for Japanese corporations. In October 2008, Development Bank of Japan, which mainly engages in corporate financing, and Shoko Chukin Bank, which mainly engages in financing for small and medium-sized enterprises, were transformed into joint stock corporations. Japan Housing Finance Agency supports housing loans of private institutions through the securitization of such loans.

In April 2012, Japan Bank for International Cooperation, which provides policy-based finance with a mission to contribute to the sound development of Japan and the international economy and society, was spun off from Japan Finance Corporation and was established as a joint stock company wholly owned by the Japanese government.

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Another distinctive element of the Japanese banking system is the role of the postal savings system. Postal savings deposits are gathered through the network of governmental post offices scattered throughout Japan, and their balance of deposits totaled over 200 trillion yen in the past. In recent years, the governmental postal business has been in the process of organizational restructuring. In 2003, the governmental postal business was transferred to Japan Post, a government-owned entity established in the same year, and in 2007, Japan Post was transformed into a government-owned joint stock corporation holding four operating companies including Japan Post Bank, which currently operates as an ordinary bank. In November 2015, the shares of three main companies of the Japan Post group were listed on the Tokyo Stock Exchange, with Japan Post Holdings disposing of approximately 11% of its ownership in the two subsidiaries, while the Japanese government disposed of approximately 11% of its ownership in Japan Post Holdings. “In September 2017, the government further sold down approximately 22% of Japan Post Holdings shares.” Japan Post Holdings plans to initially dispose of its two subsidiaries shares gradually down to approximately 50% ownership.

In recent years, as a result of technological advances in the digital field called ”FinTech,” entry from different industries into areas considered to be the inherent business of financial institutions such as settlement services has been increasing.

In the Japanese securities market, a large number of registered entities are engaged in securities businesses, such as sales and underwriting of securities, investment advisory and investment management services. As deregulation of the securities market progressed, several of the country’s banking groups have entered into this market through their subsidiaries. In addition, foreign financial institutions have been active in this market.

Supervision and Regulation

Japan

Pursuant to the Banking Act (Ginkou Hou) (Act No. 59 of 1981, as amended), the Prime Minister of Japan has authority to supervise banks in Japan and delegates certain supervisory control over banks in Japan to the Commissioner of the Financial Services Agency. The Bank of Japan also has supervisory authority over banks in Japan, based primarily on its contractual agreements and transactions with the banks.

Financial Services Agency

Although the Prime Minister has supervisory authority over banks in Japan, except for matters prescribed by government order, this authority is generally entrusted to the Commissioner of the Financial Services Agency. Additionally, the position of Minister for Financial Services was established by the Cabinet to direct the Commissioner of the Financial Services Agency and to support the Prime Minister.

Under the Banking Act, the Prime Minister’s authority over banks and bank holding companies in Japan extends to various areas, including granting and cancellation of licenses, ordering the suspension of business in whole or in part and requiring submission of business reports or materials. Under the prompt corrective action system, the Financial Services Agency, acting on behalf of the Prime Minister, may take corrective action in the case of failure to meet the minimum capital adequacy ratio of banks, their subsidiaries and companies having special relationships prescribed by the cabinet order. See “Capital Adequacy” below. These actions include requiring a financial institution to formulate and implement reform measures, requiring it to reduce assets or take other specific actions and issuing an order to suspend all or part of its business operations.

In addition, under the capital distribution constraints system introduced in March 2016, the Financial Services Agency, acting on behalf of the Prime Minister, may order a bank holding company or bank to submit and carry out a capital distribution constraints plan. See “Capital Adequacy” below. The capital distribution constraints plan is required to be considered reasonable to restore the capital buffer and include restrictions on capital distributions, such as dividends, share buybacks and bonuses payments, up to a certain amount as determined depending on the level of the capital buffer.

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Under the prompt warning system introduced in December 2002, the Financial Services Agency may take precautionary measures to maintain and promote the sound operations of financial institutions, even before those financial institutions become subject to the prompt corrective action system. These measures require a financial institution to reform profitability, credit risk management, stability and cash flow.

The Bank of Japan

The Bank of Japan is Japan’s central bank and serves as the principal instrument for the execution of Japan’s monetary policy. The principal measures by which the Bank of Japan implements monetary policy are the adjustment of its discount rate, its operations in the open market and the imposition of deposit reserve requirements. Banks in Japan are allowed to obtain borrowings from, and rediscount bills with, the Bank of Japan. Moreover, most banks in Japan maintain current accounts under agreements with the Bank of Japan pursuant to which the Bank of Japan is entitled to supervise, examine and audit the banks. The supervisory functions of the Bank of Japan are intended to enable it to ensure smooth settlement of funds among banks and other financial institutions, thereby contributing to the maintenance of an orderly financial system, whereas the supervisory practices of the Prime Minister or the Commissioner of the Financial Services Agency are intended to maintain the sound operations of banks and promote the security of depositors.

Examination of Banks

The Banking Act authorizes the Prime Minister to inspect banks and bank holding companies in Japan at any time. By evaluating banks’ systems of self-assessment, auditing their accounts and reviewing their compliance with laws and regulations, the Financial Services Agency monitors the financial soundness of banks, including the status and performance of their control systems for business activities. The inspection of banks is performed pursuant to a Financial Inspection Manual published by the Financial Services Agency. Currently, the Financial Services Agency takes the “better regulation” approach in its financial regulation and supervision. This consists of four pillars: optimal combination of rules-based and principles-based supervisory approaches; timely recognition of priority issues and effective response; encouraging voluntary efforts by financial institutions and placing greater emphasis on providing them with incentives; and improving the transparency and predictability of regulatory actions, in pursuit of improvement of the quality of financial regulation and supervision. On December 15, 2017, the Financial Services Agency announced a plan to repeal the Financial Inspection Manual after April 1, 2019 and establish its new supervisory approaches. In addition to individual financial institutions, the Financial Services Agency also supervises financial groups as financial conglomerates based on its Guidelines for Financial Conglomerates Supervision that focus on management, financial soundness and operational appropriateness of a financial conglomerate as a whole.

The Bank of Japan also conducts examinations of banks similar to those undertaken by the Financial Services Agency. The examinations are normally conducted once every few years, and involve such matters as examining asset quality, risk management and reliability of operations. Through these examinations, the Bank of Japan seeks to identify problems at an early stage and give corrective guidance where necessary.

In addition, the Securities and Exchange Surveillance Commission examines banks in connection with their financial instruments business activities in accordance with the Financial Instruments and Exchange Act of Japan (Kinyu Shouhin Torihiki Hou) (Act No. 25 of 1948, as amended).

Examination and Reporting Applicable to Shareholders

Under the Banking Act, a person who intends to hold 20% (in certain exceptional cases, 15%) or more of the voting rights of a bank is required to obtain prior approval of the Commissioner of the Financial Services Agency. In addition, the Financial Services Agency may request reports or submission of materials from, or inspect, any principal shareholder who holds 20% (in certain exceptional cases, 15%) or more of the voting rights of a bank, if necessary in order to secure the sound and appropriate operation of the business of such bank. Under

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limited circumstances, the Financial Services Agency may order such principal shareholder to take such measures as the Financial Services Agency deems necessary.

Furthermore, under the Banking Act, any person who becomes a holder of more than 5% of the voting rights of a bank holding company or bank must report its ownership of voting rights to the director of the relevant local finance bureau within five business days. In addition, a similar report must be made in respect of any subsequent change of 1% or more in any previously reported holding or any change in material matters set forth in reports previously filed, with some exceptions.

Deposit Insurance System

Under the Deposit Insurance Act (Yokin Hoken Hou) (Act No. 34 of 1971, as amended), depositors are protected through the Deposit Insurance Corporation in cases where financial institutions fail to meet their obligations. The Deposit Insurance Corporation is supervised by the Prime Minister and the Minister of Finance. Subject to limited exceptions, the Prime Minister’s authority is entrusted to the Commissioner of the Financial Services Agency.

The Deposit Insurance Corporation receives annual insurance premiums from insured banks. The effective premium rate from April 2018, which is the weighted average of the rates for deposits that bear no interest, are redeemable upon demand and are used by depositors primarily for payment and settlement purposes, and for other deposits, is 0.034%.

The insurance money may be paid out in case of a suspension of deposit repayments, banking license revocation, dissolution or bankruptcy of the bank. Pay outs are generally limited to a maximum of ¥10 million of principal amount, together with any interest accrued with respect to each depositor. Only non-interest bearing deposits, redeemable on demand and used by depositors primarily for payment and settlement functions are protected in full.

Participation in the deposit insurance system is compulsory for city banks (including Mizuho Bank), regional banks, trust banks (including Mizuho Trust & Banking), credit associations and co-operatives, labor banks and other financial institutions.

Governmental Measures to Treat Troubled Institutions

Under the Deposit Insurance Act, a Financial Reorganization Administrator can be appointed by the Prime Minister if the bank is unable to fully perform its obligations with its assets or may suspend or has suspended repayment of deposits. The Financial Reorganization Administrator will take control of and dispose of the assets of the bank and search for another institution willing to take over its business. Its business may also be transferred to a “bridge bank” established by the Deposit Insurance Corporation for the purpose of the temporary maintenance and continuation of operations of these types of institutions, and the bridge bank will seek to transfer the bank’s assets to another financial institution or dissolve the bank. The financial aid provided by the Deposit Insurance Corporation to assist another financial institution with succeeding the failed bank’s business may take the form of a monetary grant, loan or deposit of funds, purchase of assets, guarantee or assumption of debts, subscription of preferred stock or subordinated bonds, lending of subordinated loans, or loss sharing.

Where the Prime Minister recognizes that the failure of a bank which falls into any of (i) through (iii) below may cause an extremely grave problem in maintaining the financial order in Japan or the region where such bank is operating (“systemic risk”), without taking any of the measures described in (i) through (iii) below, the Prime Minister may confirm (nintei) to take any of the following measures, after the deliberation at the Financial Crisis Management Meeting: (i) if the bank does not fall into either of the banks described in (ii) or (iii), the Deposit Insurance Corporation may subscribe for shares or subordinated bonds of, or lend subordinated loans to the bank,

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or subscribe for shares of the bank holding company of the bank, in order to enhance capital adequacy of the bank (item 1 measures (dai ichigo sochi)); (ii) if the bank is likely to suspend or has suspended repayment of deposits or is unable to fully perform its obligations with its assets, financial aid exceeding the pay-off cost may be available to such bank (item 2 measures (dai nigo sochi)); and (iii) if the bank is likely to suspend or has suspended repayment of deposits and is unable to fully perform its obligations with its assets, and the systemic risk cannot be avoided by the measure mentioned in (ii) above, the Deposit Insurance Corporation may acquire all of the bank’s shares (item 3 measures (dai sango sochi)). The expenses for implementation of the above measures will be borne by the bank industry, with an exception under which the Government of Japan may provide partial subsidies for such expenses.

New orderly and effective resolution regimes for financial institutions have been discussed internationally and “Key Attributes of Effective Resolution Regimes for Financial Institutions” was published by the Financial Stability Board in November 2011 and endorsed by the G20 leaders at the Cannes summit held in November 2011. Reflecting this global trend, pursuant to certain amendments to the Deposit Insurance Act that were promulgated in June 2013 and became effective on March 6, 2014, a new resolution regime was introduced in Japan.

Under the new resolution regime stipulated in the amendments to the Deposit Insurance Act and implementing ordinances thereunder, which became effective on March 6, 2014, financial institutions including banks, insurance companies and securities companies and their holding companies, are subject to the regime.

Further, under the new resolution regime, among other things, where the Prime Minister recognizes that the failure of a financial institution which falls into either (a) or (b) below may cause significant disruption in the financial markets or other financial systems in Japan without taking any of the measures described in (a) (specified item 1 measures)(tokutei dai ichigo sochi) stipulated in Article 126-2, Paragraph 1, Item 1 of the Deposit Insurance Act or the measures described in (b) (specified item 2 measures)(tokutei dai nigo sochi) stipulated in Article 126-2, Paragraph 1, Item 2 of the Deposit Insurance Act, the Prime Minister may confirm (specified confirmation)(tokutei nintei) to take any of the following measures, after the deliberation at the Financial Crisis Management Meeting; (a) if the financial institution does not fall into a financial institution which is unable to fully perform its obligations with its assets, the Deposit Insurance Corporation shall supervise the operation of the business of and the management and disposal of assets of that financial institution (tokubetsu kanshi), and may provide it with loans or guarantees necessary to avoid the risk of significant disruption in the financial systems in Japan (shikin no kashitsuke tou), or subscribe for shares or subordinated bonds of, or lend subordinated loans to the financial institutions (tokutei kabushiki tou no hikiuke tou) , in each case to be taken as necessary taking into consideration of the financial conditions of the financial institution; and (b) if the financial institution is or is likely to be unable to fully perform its obligations with its assets or has suspended or is likely to suspend repayment of its obligations, the Deposit Insurance Corporation shall supervise that financial institution (tokubetsu kanshi), and may provide financial aid necessary to assist merger, business transfer, corporate split or other reorganization in respect to such failed financial institution (tokutei shikin enjo). The expenses for implementation of the measures under this regime will be borne by the financial industry, with an exception under which the Government of Japan may provide partial subsidies for such expenses. If a measure set out in (b) above is determined to be taken with respect to a financial institution, the Prime Minister may order that the financial institution’s operation and assets be under the special control (tokutei kanri) of the Deposit Insurance Corporation. The business or liabilities of the financial institution subject to the special supervision (tokubetsu kanshi) or special control (tokutei kanri) by the Deposit Insurance Corporation as set forth above may also be transferred to a “bridge bank” established by the Deposit Insurance Corporation for the purpose of the temporary maintenance and continuation of operations of, or repayment of the liabilities of, such financial institutions, and the bridge bank will seek to transfer the bank’s business or liabilities to another financial institution or dissolve the bank. The financial aid provided by the Deposit Insurance Corporation to assist merger, business transfer, corporate split or other reorganization in respect to the financial institution set out in (b) above may take the form of a monetary grant, loan or deposit of funds, purchase of assets, guarantee or assumption of debts, subscription of preferred stock or subordinated bonds, lending of subordinated loan, or loss sharing.

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If the Deposit Insurance Corporation has provided such financial assistance, the Prime Minister may designate the movable assets and claims of the failed financial institution as not subject to attachment under Article 126-16 of the Deposit Insurance Act, and such merger, business transfer, corporate split or other reorganization may be conducted outside of the court-administrated insolvency proceedings.

If the financial institution subject to the special supervision or the special control by the Deposit Insurance Corporation as set forth above is or is likely to be unable to fully perform its obligations with its assets or has suspended or is likely to suspend repayment of its obligations, the financial institution may transfer all or a material portion of its business or all or a portion of shares of its subsidiaries or implement corporate split or certain other corporate actions with court permission in lieu of any shareholder resolutions under Article 126-13 of the Deposit Insurance Act which permission may be granted by the court in accordance with the Deposit Insurance Act if (i) the financial institution is under special supervision by, or under special control of, the Deposit Insurance Corporation pursuant to the Deposit Insurance Act and (ii) the financial institution is, or is likely to be, unable to fully perform its obligations with its assets, or the financial institution has suspended, or is likely to suspend, repayment of its obligations. In addition, the Deposit Insurance Corporation must request other financial institution creditors of the failed financial institution to refrain from exercising their rights against the failed financial institution until measures necessary to avoid the risk of significant disruption to the financial system in Japan have been taken, if it is recognized that such exercise of their rights is likely to make it difficult to conduct an orderly resolution of the failed financial institution.

According to the announcement made by the Financial Services Agency in March 2014, (i) Additional Tier 1 instruments and Tier 2 instruments under Basel III issued by a bank must be written down or converted into common shares when the Prime Minister confirms that item 2 measures (dai nigo sochi), item 3 measures (dai sango sochi) or specified item 2 measures (tokutei dai nigo sochi) need to be applied to the bank, and (ii) Additional Tier 1 instruments and Tier 2 instruments under Basel III issued by a bank holding company must be written down or converted into common shares when the Prime Minister confirms that specified item 2 measures (tokutei dai nigo sochi) need to be applied to the bank holding company.

Recovery and Resolution Plan

In November 2017, the Financial Stability Board published the latest list of G-SIBs. The list is annually updated by the Financial Stability Board in each November, and the list as of November 2017 includes us. A recovery and resolution plan must be put in place for each G-SIB and be regularly reviewed and updated. In Japan, under the Comprehensive Guidelines for Supervision of Financial Instruments Business Operators, etc., as part of crisis management, financial institutions identified as G-SIBs must prepare and submit a recovery plan, which includes the triggers to implement the recovery plan and an analysis of recovery options, to the Financial Services Agency, and the Financial Services Agency must prepare a resolution plan for each G-SIB.

Capital Injection by the Government

The Strengthening Financial Functions Act (Kinyu Kinou no Kyouka no tame no Tokubetsu Sochi ni kansuru Houritsu) (Act No. 128 of 2004) was enacted on June 18, 2004 in order to establish a scheme of public money injection into financial institutions and thereby enhance the soundness of such financial institutions on or prior to March 31, 2008 and revitalize economic activities in the regions where they do business. On December 17, 2008, certain amendments to the Strengthening Financial Functions Act took effect. These amendments relaxed certain requirements for public money injection into Japanese banks and bank holding companies and other financial institutions under the prior scheme and extended the period of application therefor, which had expired on March 31, 2008, to March 31, 2012. These amendments aim to promote not only the soundness of such financial institutions but also the extension of loans or other forms of credit to small and medium-sized enterprises in order to revitalize local economies. In response to the Great East Japan Earthquake, the law was amended in June 2011 to extend the period for application to March 31, 2017 and to include special

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exceptions for disaster-affected financial institutions. In 2016, the law was further amended to extend the period for application to March 31, 2022. None of the financial institutions within the Mizuho group are subject to such special exceptions.

Bank Holding Companies

Under the amendments to the Banking Act, which became effective from April 2017, a bank holding company is required to administrate the businesses of the bank holding company group and is, in principle, prohibited from carrying out businesses other than administrating such businesses and matters incidental to such businesses; however, a bank holding company may, with prior approval of the Prime Minister, carry out certain common operations of its group companies so as to improve the efficiency of their operations. Business activities for subsidiaries of bank holding companies are limited to finance-related businesses and incidental businesses.

The Anti-Monopoly Act (Shiteki Dokusen no Kinshi oyobi Kousei Torihiki no Kakuho ni kansuru Houritsu) (Act No. 54 of 1947, as amended) prohibits a bank from holding more than 5% of another company’s voting rights. This does not apply to a bank holding company, although the bank holding company is subject to general shareholding restrictions under the Anti-Monopoly Act. The Banking Act does, however, in principle, prohibit a bank holding company and its subsidiaries, on an aggregate basis, from holding more than 15% (in contrast to 5% in the case of a bank and its subsidiaries) of the voting rights of certain types of companies not permitted to become subsidiaries of bank holding companies. Despite the foregoing shareholding restrictions, under the amendments to the Banking Act, which became effective from April 2017, bank holding companies and banks, with prior approval of the Prime Minister, can acquire and own voting rights of companies whose businesses contribute or are expected to contribute to the increased sophistication of the banking business or the enhancement of customer convenience by utilizing information and communication technology that exceed the threshold of the voting rights described above.

Financial Instruments and Exchange Act

The Financial Instruments and Exchange Act (Kinyu Shouhin Torihiki Hou) requires Mizuho Financial Group to file with the Director General of the Kanto Local Finance Bureau an annual securities report including consolidated and non-consolidated financial statements in respect of each financial period, supplemented by quarterly and extraordinary reports.

Under the Financial Instruments and Exchange Act, registered Financial Instruments Business Operators (kinyu-shouhin torihiki gyousha), such as Mizuho Securities, as well as Registered Financial Institutions (touroku kinyu kikan), such as Mizuho Bank and Mizuho Trust & Banking, are required to provide customers with detailed disclosure regarding the financial products they offer and take other measures to protect investors, including a delivery of explanatory documents to such customers prior to and upon the conclusion of transactional agreements.

Financial Instrument Business Operators and Registered Financial Institutions are subject to the supervision of the Financial Services Agency pursuant to delegation by the Prime Minister of Japan. Some of the supervisory authority of the Financial Services Agency is further delegated to the Securities and Exchange Surveillance Commission, which exercises its supervisory power over such registered institutions by conducting site inspections and requesting information necessary for such inspections. Non-compliance or interference with such inspection may result in such registrants being subject to criminal penalty under the Financial Instruments and Exchange Act.

Certain amendments to the Financial Instruments and Exchange Act and the Banking Act, which came into effect on June 1, 2009, revamped the firewall regulations regarding the holding of concurrent offices or posts among banks, securities firms and insurance firms and required banks, securities firms and insurance firms to establish systems for managing conflicts of interest in order to protect customers’ interests and expanded the types of business services that banks and certain other financial firms can provide.

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Sales of Financial Products

As a result of financial deregulation, more financial products, including highly structured and complicated products, can now be more freely marketed to customers. In response to this, the Act of Sales of Financial Products (Kinyu Shouhin no Hanbai tou ni kansuru Houritsu) (Act No. 101 of 2000, as amended), effective from April 2001, introduced measures to protect financial service customers by: requiring financial service providers to provide customers with certain important information, including risks with respect to deficit of principal associated with the financial products they offer and any restrictions on the period for exercising rights or the period for rescission, unless the customers fall within the ambit of professional investors or express their intent to the contrary; and holding financial service providers liable for damages caused by a failure to follow those requirements. The amount of loss of principal is refutably presumed to be the amount of damages. Additionally, the law requires financial service providers to follow certain regulations on solicitation measures as well as to endeavor to solicit customers in an appropriate manner and formulate and publicize a solicitation policy.

Self-Assessment and Reserves

The prompt corrective action system requires financial institutions to establish a self-assessment program that complies with the Inspection Manual issued by the Financial Services Agency and related laws such as the Financial Reconstruction Act (Kinyu Kinou no Saisei no tameno Kinkyu Sochi ni kansuru Houritsu) (Act No. 132 of 1998, as amended). Financial institutions are required to analyze their assets, giving due consideration to accounting principles and other applicable rules and to classify their assets into four categories according to asset recovery risk and risk of impairment based on the classification of the obligor (normal obligors, watch obligors, intensive control obligors, substantially bankrupt obligors and bankrupt obligors) taking into account the likelihood of repayment and the risk of impairment to the value of the assets. The results of self-assessment should be reflected in the write-off and allowance according to the standard established by financial institutions pursuant to the guidelines issued by the Japanese Institute of Certified Public Accountants and Inspection Manual issued by the Financial Services Agency. Based on the results of the self-assessment, financial institutions may establish reserve amounts for their loan portfolio as may be considered adequate at the relevant balance sheet date, even if all or part of such reserves may not be immediately tax deductible under Japanese tax law.

Based on the accounting standards for banks issued by the Japanese Bankers Association, a bank is required to establish general reserves, specific reserves and reserves for probable losses on loans relating to restructuring countries.

Credit Limits

The Banking Act restricts the aggregate amount of exposure to any single customer or customer group for the purposes of avoiding excessive concentration of credit risks and promoting the fair and extensive utilization of bank credit. The limits applicable to a bank holding company and bank with respect to their aggregate exposure to any single customer or customer group are established by the Banking Act and regulations thereunder. The Banking Act and the related regulations were amended, which became effective from December 2014, to tighten the previous restrictions to meet international standards. As a result of these amendments, the current credit limit for a single customer or a customer group is 25% of the total qualifying capital, with certain adjustments, of the bank holding company or bank and its subsidiaries and affiliates.

Restriction on Shareholdings

The Act Concerning Restriction on Shareholdings by Banks (Ginkou tou no Kabushiki tou no Hoyu no Seigen tou ni kansuru Houritsu) (Act No. 131 of 2001, as amended) requires Japanese banks (including bank holding companies) and their subsidiaries to limit the aggregate market value (excluding unrealized gains, if any) of their holdings in equity securities to an amount equal to 100% of their Tier 1 capital in order to reduce exposure to stock price fluctuations.

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Share Purchase Program

The Banks’ Shareholdings Purchase Corporation was established in January 2002 in order to purchase shares from banks and other financial institutions until September 30, 2006 pursuant to the Act Concerning Restriction on Shareholdings by Banks. The Bank’s Shareholdings Purchase Corporation is allowed to resume purchases of shares held by financial institutions as well as shares of financial institutions held by non-financial institutions, up to a maximum amount of ¥20 trillion between March 12, 2009 and March 31, 2022. The Bank’s Shareholdings Purchase Corporation purchased ¥1,305.3 billion of shares during the period from March 12, 2009 through March 31, 2017. The Bank’s Shareholdings Purchase Corporation will dispose of the purchased shares by March 31, 2032 by taking into consideration the effects on the stock market.

The Bank of Japan also purchased ¥387.8 billion of shares held by banks and other financial institutions during the period from February 23, 2009 through April 30, 2010. The Bank of Japan generally will not sell the purchased shares until March 31, 2016. The Bank of Japan will dispose of the purchased shares by March 31, 2026 by taking into consideration the effects on the stock market.

Capital Adequacy

The capital adequacy guidelines applicable to Japanese banks and bank holding companies with international operations supervised by the Financial Services Agency closely follow the risk-adjusted approach proposed by the Bank for International Settlements and are intended to further strengthen the soundness and stability of Japanese banks. Under the risk-based capital framework of these guidelines, balance sheet assets and off-balance-sheet exposures are assessed according to broad categories of relative risk, based primarily on the credit risk of the counterparty, country transfer risk and the risk regarding the category of transactions.

In December 2010, the Basel Committee on Banking Supervision issued its Basel III rules text, which builds on the International Convergence of Capital Measurement and Capital Standards document (“Basel II”), to strengthen the regulation, supervision, and risk management of the banking sector. Basel III text presents the details of global regulatory standards on bank capital adequacy and liquidity. The rules text sets out higher and better-quality capital, better risk coverage, the introduction of a leverage ratio as a backstop to the risk-based requirement, measures to promote the build-up of capital that can be drawn down in periods of stress, and the introduction of two global liquidity standards. For further information of the leverage ratio and the two global liquidity standards, see ”Leverage Ratio” and “Liquidity” below, respectively.

The Financial Services Agency’s revisions to its capital adequacy guidelines became effective from March 31, 2013, which generally reflect rules in the Basel III text that have been applied from January 1, 2013.

Under the revised guidelines, the minimum capital adequacy ratio is 8% on both a consolidated and non-consolidated basis for banks with international operations, such as Mizuho Bank and Mizuho Trust & Banking or on a consolidated basis for bank holding companies with international operations, such as Mizuho Financial Group. Within the minimum capital adequacy ratio, the Common Equity Tier 1 capital requirement is 4.5% and the Tier 1 capital requirement is 6.0%.

Japanese banks with only domestic operations and bank holding companies the subsidiaries of which operate only within Japan are subject to the revised capital adequacy guidelines that have been applied from March 31, 2014, and those banks and bank holding companies are required to have a minimum Core Capital ratio of 4%. However, those banks and bank holding companies that apply the internal rating based approach are required to have a minimum Common Equity Tier 1 ratio of 4.5% on both a consolidated and non-consolidated basis, calculated on the assumption that the banks and bank holding companies are those with international operations.

Under the revised capital adequacy guidelines based on the Basel III rules that have been applied to banks and bank holding companies each with international operations from March 31, 2013, there are regulatory

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adjustments such as goodwill and other intangibles, deferred tax assets, investments in the capital of banking, financial and insurance entities etc. shall be deducted under certain conditions for the purpose of calculating capital adequacy ratios, and the requirements of regulatory adjustments were enhanced under the revised capital adequacy guidelines. For example, under the capital adequacy guidelines prior to the revision thereto under the Basel III rules, the maximum amount of net deferred tax assets under Japanese GAAP that major Japanese banks, including bank holding companies, could record without diminishing the amount of Tier 1 capital for purposes of calculating capital adequacy ratio was 20% of Tier 1 capital. Under the revised capital adequacy guidelines based on the Basel III rules, deferred tax assets that arise from temporary differences will be recognized as part of Common Equity Tier 1 capital, with recognition capped at 10% of Common Equity Tier 1 capital under certain conditions, while other deferred tax assets, such as those relating to net loss carryforwards, will be deducted in full from Common Equity Tier 1 capital net of deferred tax liabilities. These regulatory adjustments based on the Basel III rules began at 20% of the required deductions in the calculation of Common Equity Tier 1 capital in March 2014 and were increased by 20% increments per year, and became fully effective in March 2018.

In November 2015, the Financial Services Agency published revised capital adequacy guidelines and related ordinances to introduce the capital buffer requirements under the Basel III rules for Japanese banks and bank holding companies with international operations, which include the capital conservation buffer, the countercyclical buffer and the additional loss absorbency requirements for G-SIBs and domestic systemically important banks (“D-SIBs”). These guidelines have become effective on March 31, 2016. The capital conservation buffer, the countercyclical capital buffer and the additional loss absorption capacity requirement for G-SIBs and D-SIBs must be met with Common Equity Tier 1 capital under the revised guidelines, and if such buffer requirements are not satisfied, a capital distribution constraints plan is required to be submitted to the Financial Services Agency and carried out. The capital conservation buffer is being phased in starting in March 2016 at 0.625% until becoming fully effective in March 2019 at 2.5%. In addition, subject to national discretion by the respective regulatory authorities, if the relevant national authority judges a period of excess credit growth to be leading to the build-up of system-wide risk, a countercyclical capital buffer ranging from 0% to 2.5% would also be imposed on banking organizations. The countercyclical capital buffer is a weighted average of the buffers deployed across all the jurisdictions to which the banking organization has credit exposures. Further, we were designated as both a G-SIB and D-SIB, and the additional loss absorption capacity requirement applied to us was 1.0%. The additional loss absorption capacity requirement was the same as that imposed by the Financial Stability Board, which is being phased in starting in March 2016 at 0.25% until becoming fully effective in March 2019 at 1.0%.

Under the capital adequacy guidelines, banks and bank holding companies each with international operations are required to measure and apply capital charges with respect to their credit risk, market risk and operational risk.

Under the guidelines, banks and bank holding companies have several choices for the methodologies to calculate their capital requirements for credit risk, market risk and operational risk. Approval of the Financial Services Agency is necessary to adopt advanced methodologies for calculation, and Mizuho Financial Group started to apply the AIRB approach for the calculation of credit risk from the fiscal year ended March 31, 2009 and also apply the AMA for the calculation of operational risk from September 30, 2009.

In December 2017, the Basel Committee on Banking Supervision (“BCBS”) published the finalized Basel III reforms endorsed by the Group of Central Bank Governors and Heads of Supervision. The finalized reforms complement the initial phase of Basel III reforms set forth above, seek to restore credibility in the calculation of risk-weighted assets and improve the comparability of banks’ capital ratios. Such reforms include the following elements:

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In addition, under the finalized Basel III reforms, G-SIBs are required to meet a leverage ratio buffer, which will take the form of a Tier 1 capital buffer set at 50% of the applicable G-SIB’s risk-weighted capital buffer, and various refinements are made to the definition of the leverage ratio exposure measure based on the text of the leverage ratio framework issued by the BCBS in January 2014.

The revised framework will mainly take effect from January 1, 2022, and the revisions to the capital floor will be phased in from January 1, 2022, with the initial capital floor of 50%, and will be fully implemented at 72.5% from January 1, 2027.

For further information regarding capital adequacy, see “Item 5. Operating and Financial Review and Prospects—Capital Adequacy—Regulatory Capital Requirements.”

Leverage Ratio

The leverage ratio framework is critical and complementary to the risk-based capital framework that will help ensure broad and adequate capture of both on- and off-balance sheet sources of banks’ leverage. This simple, non-risk-based measure will restrict the build-up of excessive leverage in the banking sector to avoid destabilizing deleveraging processes that can damage the broader financial system and the economy. Implementation of the leverage ratio requirements began with bank-level reporting to national supervisors of the leverage ratio and its components, and public disclosure is required from January 2015. Basel III’s leverage ratio is defined as the “capital measure” (numerator) divided by the “exposure measure” (denominator) and is expressed as a percentage. The capital measure is defined as Tier 1 capital, and the minimum leverage ratio is defined as 3%.

The leverage ratio requirements under the finalized definition of the leverage ratio exposure measure and the leverage ratio buffer requirement for G-SIBs, will take effect from January 1, 2022.

For further information regarding the leverage ratio, see “Item 5. Operating and Financial Review and Prospects—Capital Adequacy—Regulatory Capital Requirements.”

Liquidity

Two minimum standards for funding liquidity will be introduced. The liquidity coverage ratio (“LCR”) is intended to promote resilience to potential liquidity disruptions over a thirty-day horizon and help ensure that global banks have sufficient, unencumbered, high-quality liquid assets (“HQLA”) to offset the net cash outflows it could encounter under an acute short-term stress scenario. The Group of Governors and Heads of Supervision agreed on a revised LCR standard on January 6, 2013, and the BCBS issued the text of the revised LCR standard on January 7, 2013. The LCR guidelines of the Financial Services Agency, which reflect the rules in such text, have been applied to banks and bank holding companies with international operations from March 31, 2015, under the LCR guidelines, LCR is defined as the ratio obtained by dividing the sum of the amounts of High-Quality liquid assets by the amount of net cash outflows, each as defined in and calculated pursuant to such

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guidelines. In accordance with the LCR standard under the LCR guidelines, the stock of unencumbered HQLA is to constitute “level 1” assets, which include cash, central bank reserves and certain marketable securities backed by sovereigns and central banks, and “Level 2” assets, which include certain government securities covered bonds, corporate debt securities and, to a limited extent, lower-rated corporate bonds, residential mortgage-backed securities and equities that meet certain conditions. “Level 2” assets are subject to certain haircuts based on types of securities and credit ratings. The minimum LCR under the LCR guidelines is 100% on both a consolidated and non-consolidated basis for banks with international operations or on a consolidated basis for bank holding companies with international operations. LCR is subject to phase-in arrangements pursuant to which the LCR rises in equal annual steps of 10 percentage points to reach 100% on January 1, 2019, with a minimum requirement of 90% during the period from January 1 to December 31, 2018. The BCBS issued final requirements for LCR-related disclosures on January 12, 2014, and the LCR disclosure guidelines of the Financial Services Agency, which reflect such requirements, have been applied to banks and bank holding companies with international operations from June 30, 2015. The LCR disclosure guidelines require such banks and bank holding companies to disclose their LCR in common templates starting from information as of June 30, 2015.

The net stable funding ratio (“NSFR”) requires a minimum amount of stable sources of funding at a bank relative to the liquidity profiles of the assets, as well as the potential for contingent liquidity needs arising from off-balance sheet commitments, over a one-year horizon. The BCBS finalized the NSFR framework in October 2014, and the NSFR is scheduled to be introduced as a minimum standard by the Financial Services Agency.

Total Loss Absorbing Capacity

Related to regulatory capital requirements, in November 2015, the FSB issued the final TLAC standard for G-SIBs. The TLAC standard has been designed so that failing G-SIBs will have sufficient loss-absorbing and recapitalization capacity available in resolution for authorities to implement an orderly resolution. G-SIBs will be required to meet the TLAC requirement alongside the minimum regulatory requirements set out in the Basel III framework. Specifically, G-SIBs will be required to meet a Minimum TLAC requirement of at least 16% of the resolution group’s risk-weighted assets as from January 1, 2019 and at least 18% as from January 1, 2022. Minimum TLAC must also be at least 6% of the Basel III leverage ratio denominator from January 1, 2019, and at least 6.75% from January 1, 2022.

Following the publication of the final TLAC standards for G-SIBs by the FSB, in April 2016, the Financial Services Agency published an explanatory paper outlining its approach for the introduction of the TLAC framework in Japan, and a revised version of this document was published in April 2018. According to the Financial Services Agency’s approach, which is subject to change based on future international discussions, the preferred resolution strategy for G-SIBs in Japan as well as a domestic systematically important bank in Japan which is deemed of particular need for a cross-border resolution arrangement and of particular systemic significance to Japanese financial system if it fails (together with G-SIBs in Japan, the “Covered SIBs”) is Single Point of Entry (“SPE”) resolution, in which resolution tools are applied to the ultimate holding company of a group by a single national resolution authority, although the actual measures to be taken will be determined on a case-by-case basis considering the actual condition of the relevant Covered SIB in crisis. To implement this SPE resolution strategy effectively, the Financial Services Agency plans to require the resolution entities in Japan of the Covered SIBs, which will be typically the ultimate holding company of the group, to (i) meet the minimum external TLAC requirements provided under the FSB’s TLAC standard, and (ii) cause their material subsidiaries or material sub-groups that are designated as systemically important by the Financial Services Agency or that are subject to TLAC requirements or similar requirements by the relevant foreign authority to maintain a certain level of capital and debt recognized as having loss-absorbing and recapitalization capacity, or Internal TLAC. In addition, under the approach, the Financial Services Agency plans to apply the TLAC requirement for Japanese G-SIBs from March 31, 2019, and Japanese G-SIBs would be allowed to count the Japanese Deposit Insurance Fund Reserves in an amount equivalent to 2.5% of their consolidated risk-weighted assets from 2019 and 3.5% of their consolidated risk-weighted assets from 2022 as their external TLAC.

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Protection of Personal Information

The Personal Information Protection Act (Kojin Jouhou no Hogo ni kansuru Houritsu) (Act No. 57 of 2003, as amended) and related guidelines impose various requirements on businesses, including us, that use databases containing personal information, such as appropriate custody of such information and restrictions on information sharing with third parties. Non-compliance with the order issued by the Personal Information Protection Commission to take necessary measures to comply with the law will subject us to criminal and/or administrative sanctions.

Prevention of Money Laundering

Under the Act Preventing Transfer of Profits Generated from Crime (Hanzai ni yoru Syueki no Iten Boushi ni kansuru Houritsu) (Act No. 22 of 2007, as amended), which addresses money laundering and terrorism concerns, financial institutions and other entities such as credit card companies are required to perform customer identification, submit suspicious transaction reports and maintain records of transactions. Certain amendments to the law became effective in April 2013, which tightened, among other things, customer identification requirements. Further amendments to the law were promulgated in November 2014 and became effective on October 1, 2016 for clarification of the judgment method of suspicious transactions, strict verification at the time of the conclusion of correspondence contracts and expansion of the obligation for business operators to make efforts to develop necessary systems.

In February 2018, the Financial Services Agency issued “Guidelines for Anti-Money Laundering and Combating the Financing of Terrorism” to clarify the basic stance on risk management practices against money laundering and terrorists financing in order to encourage financial institutions to improve their regimes to effectively prevent money laundering and terrorists financing.

Act Concerning Protection of Depositors from Illegal Withdrawals Made by Forged or Stolen Cards

The Act Concerning Protection of Depositors from Illegal Withdrawals Made by Forged or Stolen Cards (Gizou Kaado tou oyobi Tounan Kaado tou wo Mochiite Okonawareru Fuseina Kikaishiki Yochokin Haraimodoshi tou karano Yochokinsha no Hogo tou ni kansuru Houritsu) (Act No. 94 of 2005, as amended) requires financial institutions to establish internal systems to prevent illegal withdrawals of deposits using forged or stolen bank cards. The law also requires financial institutions, among other matters, to compensate depositors for any amount illegally withdrawn using forged bankcards, unless the financial institution can verify that it acted in good faith without negligence and that there was gross negligence on the part of the relevant account holder.

United States

As a result of our operations in the United States, we are subject to extensive U.S. federal and state supervision and regulation. We engage in U.S. banking activities through Mizuho Bank’s New York, Chicago, Los Angeles and Park Avenue (New York) branches and Houston, Atlanta, Dallas, San Francisco and Washington, D.C. representative offices. We also own one bank in the United States, Mizuho Bank (USA), which is engaged primarily in the banking services, trust services and custody business, and Mizuho Securities USA LLC, a U.S. broker dealer engaged in the securities business.

The Bank Secrecy Act, as amended by the USA PATRIOT Act of 2001 (the “PATRIOT Act”), contains measures to prevent, detect and prosecute terrorism and international money laundering by imposing significant compliance and due diligence obligations, creating new crimes and penalties and expanding the extraterritorial jurisdiction of the United States. The Bank Secrecy Act, as amended, imposes anti-money laundering compliance obligations on U.S. financial institutions, including the U.S. offices of foreign banks. In recent years, federal and state regulatory and law enforcement authorities have closely scrutinized the compliance by financial institutions with the Bank Secrecy Act and anti-money laundering rules.

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Mizuho Financial Group, Mizuho Bank and Mizuho Americas are financial holding companies (“FHCs”) within the meaning of the U.S. Bank Holding Company Act of 1956, as amended (the “BHCA”), and are subject to regulation and supervision thereunder by the Federal Reserve. As a matter of law, these three companies are required to act as a source of financial strength to Mizuho Bank (USA). The BHCA generally prohibits us from acquiring, directly or indirectly, the ownership or control of more than 5% of any class of voting shares of any company engaged in the United States in activities other than banking or activities that are financial in nature or incidental or complementary to financial activity. This general prohibition is subject to certain exceptions, including an exception that permits us to acquire up to 100% of the voting interests in any company engaged in nonfinancial activities that we do not routinely manage, generally for a period of up to 10 years, under our merchant banking authority. In addition, U.S. regulatory approval is generally required for us to acquire more than 5% of any class of voting shares of a U.S. bank, savings association or bank holding company.

Mizuho Financial Group and the former Mizuho Corporate Bank, now Mizuho Bank, became FHCs in December 2006, and Mizuho Americas became an FHC in July 2016. As FHCs, we, Mizuho Bank, and Mizuho Americas and the companies under their control are permitted to engage in a broader range of activities in the U.S. and abroad than permitted for bank holding companies and their subsidiaries. For example, FHC status under the BHCA permits banking groups in the United States to engage in comprehensive investment banking businesses, such as the underwriting of and dealing in corporate bonds, equities and other types of securities, and therefore enables our group to promote our investment banking business on a broader basis in the United States.

As an FHC, we are also subject to additional regulatory requirements. For example, we and each of our U.S. insured depository institution subsidiaries with operations in the United States must be “well capitalized,” meaning maintenance of a Tier 1 risk-based capital ratio of at least 6%, a total risk-based capital ratio of at least 10% and a leverage ratio of at least 5%. We and each of our U.S. insured depository institution subsidiaries must also be “well managed,” including that we and they maintain examination ratings that are at least satisfactory. Further, Mizuho Financial Group and Mizuho Bank must also meet such capital standards as calculated under their home country standards (which must be comparable to the capital required for a U.S. bank) and must be well managed under standards comparable to those required for a U.S. bank. Failure to comply with such requirements would require us to prepare a remediation plan, and we would not be able to undertake new business activities or acquisitions based on our status as an FHC during any period of noncompliance without the prior approval of the Federal Reserve Board, and divestiture or termination of certain business activities, or termination of our U.S. branches and agencies, may be required as a consequence of failing to correct such conditions within 180 days.

U.S. branches, agencies and representative offices of foreign banks must be licensed, and are also supervised and regulated, by either a state banking authority or by the Office of the Comptroller of the Currency, the U.S. federal bank regulatory agency that charters and regulates national banks and federal branches and agencies of foreign banks. Each branch and representative office in the United States of Mizuho Bank is state-licensed. Under U.S. federal banking laws, state-licensed branches and agencies of foreign banks, as a general matter, may engage only in activities that would be permissible for their federally-licensed counterparts, unless the Federal Reserve Board determines that the additional activity is consistent with sound practices. U.S. federal banking laws also subject state-licensed branches and agencies to the same single-borrower lending limits that apply to federal branches and agencies, which are substantially similar to the lending limits applicable to national banks, but are based on the capital of the entire foreign bank.

The New York branch of Mizuho Bank is subject to supervision, examination and regulation by the New York State Department of Financial Services (“NYDFS”) as well as by the Federal Reserve. Except for a prohibition on such branch accepting retail deposits, a state-licensed branch generally has the same powers as a state-chartered bank in such state. New York State has an asset pledge requirement for branches equal to the greater of 1% of average total liabilities for the previous month or $2 million, provided that an institution designated as a “well-rated foreign banking corporation” is permitted to maintain a reduced asset pledge with a cap of $100 million. The NYDFS may require higher amounts for supervisory reasons. Each other U.S. branch

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and representative office of Mizuho Bank is also subject to regulation and examination by the state banking authority of the state in which such branch or representative office is located. The deposits of Mizuho Bank’s U.S. branches are not insured by the Federal Deposit Insurance Corporation (“FDIC”)

Mizuho Bank (USA) is a New York state-chartered bank that is a member of the Federal Reserve System whose deposits are insured by the FDIC. As such, Mizuho Bank (USA) is subject to regulation, supervision and examination by the Federal Reserve and the NYDFS, as well as to relevant FDIC regulation.

In the United States, U.S.-registered broker-dealers are regulated by the U.S. Securities and Exchange Commission (the “SEC”). As a U.S.-registered broker-dealer, Mizuho Securities USA is subject to regulations that cover all aspects of the securities business, including sales methods, trade practices among broker-dealers, use and safekeeping of customers’ funds and securities, capital structure, recordkeeping, the financing of customers’ purchases and the conduct of directors, officers and employees.

In the United States, comprehensive financial regulatory reform legislation, titled the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 (the “Dodd-Frank Act”), provides a broad framework for significant regulatory changes across most areas of U.S. financial regulation. Among other things, the Dodd-Frank Act addresses systemic risk oversight, minimum leverage and risk-based capital requirements for insured depository institutions and depository institution holding companies, and the resolution of failing systemically significant financial institutions.

The Dodd-Frank Act provides regulators with tools to impose greater capital, leverage and liquidity requirements and other prudential standards, particularly for financial institutions that pose significant systemic risk and bank holding companies with $50 billion or more in consolidated assets. In imposing such heightened prudential standards on foreign banking organizations such as Mizuho Bank, the Federal Reserve Board is directed to take into account the principle of national treatment and equality of competitive opportunity, and the extent to which the foreign banking organization is subject to comparable home country standards. In February 2014, the Federal Reserve Board finalized rules (the “FBO Rules”) under Regulation YY that impose enhanced prudential standards on certain large foreign banking organizations having a U.S. presence, such as Mizuho Bank. Under the FBO Rules, large foreign banking organizations, including us, and their U.S. operations are subject to risk management requirements, risk-based capital and leverage limits, capital stress testing requirements, liquidity requirements and, in certain circumstances, asset management requirements. Additionally, the Federal Reserve Board expects to finalize single counterparty credit limits and early remediation requirements for foreign banking organizations at a later date. In addition, under the FBO Rules, foreign banking organizations with consolidated U.S. assets of $50 billion or more (excluding the assets of U.S. branches and agencies) are, as of July 1, 2016, required to establish or designate a separately capitalized top-tier U.S. intermediate holding company (“IHC”) that would hold all of its U.S. subsidiaries and be subject to certain capital, liquidity and other enhanced prudential standards on an IHC consolidated basis. In consideration of certain enhanced prudential requirements under the FBO Rules, we established a new U.S. bank holding company, Mizuho Americas, a wholly owned direct subsidiary of Mizuho Bank as of July 1, 2016. Mizuho Americas is currently the holding company for our U.S. bank subsidiary, Mizuho Bank (USA), our U.S. securities broker dealer, Mizuho Securities USA LLC, and certain other our U.S. subsidiaries. The establishment of Mizuho Americas was part of a larger internal corporate reorganization, which was taken with the aim of, among other things, strengthening corporate governance practices and operations.

Under Section 619 of the Dodd-Frank Act, also known as the “Volcker Rule,” any insured depository institution; any insured depository institution holding company; any non-U.S. bank with branches in the United States, such as Mizuho Bank; and any affiliate or subsidiary of such entities (each, a “banking entity”) is prohibited from engaging in proprietary trading or from investing in or sponsoring private equity or hedge funds, subject to certain limited exceptions. In December 2013, U.S. financial regulators approved final rules implementing Section 619 of the Dodd-Frank Act, and established a deadline of July 21, 2015 for banking entities to conform their activities and investments to the requirements of the final rules. In December 2014, the

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Federal Reserve Board extended the conformance period to July 21, 2017 for investments in and relationships with certain funds that were in place prior to December 31, 2013. In addition, prior to the expiration of the general conformance period, banking entities with investments in or relationships with certain “illiquid” funds” were permitted to seek an additional one-time extension by the Federal Reserve Board of up to five years. All investments in and relationships with funds covered by the Volcker Rule made after December 31, 2013 must have been divested or restructured by July 21, 2015.

The current regulatory environment in the United States may be impacted by future legislative developments, such as amendments to key provisions of the Dodd-Frank Act. For example, on May 24, 2018, the U.S. Economic Growth, Regulatory Relief and Consumer Protection Act (the “Reform Act”) was signed into law. Among other regulatory changes, the Reform Act amends various sections of the Dodd-Frank Act, including by modifying the Volcker Rule. The ultimate consequences of the Reform Act on us and our U.S. operations remain uncertain. The scope any additional future legislation is not possible to determine at this time, and we cannot predict what impact, if any, such future legislative developments will have on us if and when such legislation is enacted.

Cybersecurity and privacy developments in Europe and the U.S.

The European Union General Data Protection Regulation (“GDPR”) will replace the existing E.U. Data Protection Directive and, as a regulation, will have direct effect in all EU member states from May 25, 2018. Although a number of the existing principles for the protection of personal data will remain, the GDPR is designed to harmonize data privacy laws across Europe and reshape the way organizations approach data privacy. The GDPR introduces new obligations and expands its territorial reach. It will apply to all organizations processing or holding personal data of EU ‘data subjects’ (regardless of the organization’s location) as well as to organizations outside the EU that offer goods or services in the EU, or that monitor the behavior of EU data subjects. Personal data is information that can be used to identify a natural person, including a name, a photo, an email address, or a computer IP address. Compliance with the GDPR will require companies to analyze and evaluate how they handle data in the ordinary course of their business, from processes to technology. It imposes a prescriptive approach to compliance requiring organizations to demonstrate and record compliance and to provide much more detailed information to data subjects regarding processing. EU data subjects will need to be given full disclosure about how their personal data will be used and stored. In that connection, consent must be explicit and companies must be in a position to delete information from their global systems permanently if consent were withdrawn. Financial regulators and data protection authorities throughout the EU will have significantly increased audit and investigatory powers under GDPR to probe how personal data is being used and processed. Penalties for non-compliance are material. Serious breaches of GDPR include antitrust-like fines on companies of up to the greater of €20 million or 4% of global group turnover in the preceding year, regulatory action and reputational risk.

In the United States, federal and state regulators, including the Financial Industry Regulatory Authority (“FINRA”) and the NYDFS, have increasingly focused on cybersecurity risks and responses for regulated entities. For example, on March 1, 2017, the revised NYDFS cybersecurity regulation became effective. The regulation applies to any person licensed or chartered by the NYDFS, including New York state-chartered banks and NYDFS-licensed branches of non-U.S. banks such as Mizuho Bank (USA) and the New York branch of Mizuho Bank, and requires each company to assess its specific risk profile periodically and design a program that addresses its risks “in a robust fashion”, including addressing risks posed by third-party service providers, training and retention of specialized staff to address cybersecurity risks, maintaining systems designed to reconstruct material financial transactions and complying with security requirements for non-public information. Each covered entity must monitor its systems and networks and notify the superintendent of the NYDFS within 72 hours after it is determined that a material cybersecurity event has occurred. Senior management of the covered entity is required to file an annual certification confirming compliance with the NYDFS regulations beginning February 15, 2018. Similarly, FINRA has identified cybersecurity as a significant risk and will assess firms’ programs to mitigate those risks.

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Disclosure Pursuant to Section 219 of the Iran Threat Reduction and Syria Human Rights Act

Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 (“Section 219”) added Section 13(r) to the U.S. Securities Exchange Act of 1934, requiring each SEC reporting issuer to disclose in its annual and, if applicable, quarterly reports whether it or any of its affiliates have knowingly engaged in specified activities, transactions or dealings relating to Iran or with the Government of Iran or certain designated persons or entities involved in terrorism or the proliferation of weapons of mass destruction during the period covered by such filing. Section 219 requires disclosure even of certain activities not prohibited by U.S. or other law and even if such activities were conducted outside the United States by non-U.S. affiliates in compliance with local law.

Our affiliate Mizuho Bank is our only affiliate to have engaged in activity that is relevant for this purpose. Mizuho Bank maintains compliance policies and procedures to conform its operations to all applicable economic sanctions laws and regulations, and is increasing resources dedicated to this effort. In that context, and only after confirming that such transactions did not involve prohibited or sanctionable activity under U.S. or other economic sanctions, non-U.S. branches of Mizuho Bank engaged in a limited number of activities reportable under Section 219 during the period covered by this annual report, as described below. No U.S. branches of Mizuho Bank were involved in any of these activities.

Legacy guarantees

During the period covered by this disclosure, Mizuho Bank was a party to a legacy counter guarantee that was opened in connection with activity of its customer for the benefit of an Iranian bank. When the guarantee was entered into, the bank in question, which is related to the Government of Iran, had not been designated under U.S. Executive Orders (“E.O.”) 13224 or 13382, although it was subsequently so designated. Mizuho Bank maintained this guarantee post-designation only after confirming that such a transaction did not involve prohibited or sanctionable activity under U.S. or other economic sanctions. As contractual obligations, this guarantee cannot be exited by Mizuho Bank unilaterally. In the fiscal year ended March 31, 2018, Mizuho Bank received fees of less than ¥1 million attributable to this guarantee and earned net profits of less than that amount. Mizuho Bank continues to seek to terminate the counter guarantee to the extent permitted under applicable laws.

Activities through correspondent banking accounts

In the fiscal year ended March 31, 2018, Mizuho Bank conducted a limited number of fund transfers through accounts it maintains for or at a limited number of Iranian banks related to the Government of Iran and a bank designated under E.O. 13224, or through other correspondent banking accounts on behalf of such Iranian banks. These transfers were mainly associated with requests by our customers after the relaxation of applicable sanctions pursuant to the Joint Comprehensive Plan of Action. Mizuho Bank has policies and procedures to process transfers through these accounts only after confirming that such transactions do not involve prohibited or sanctionable activity under U.S. or other economic sanctions and obtaining licenses issued by Japan’s Ministry of Finance where necessary. Estimated gross revenue to Mizuho Bank in the fiscal year ended March 31, 2018 attributable to fees for these activities was less than ¥50 million, with a net profit of less than that amount. Mizuho Bank intends to continue engaging in these activities but will process transfers through these accounts only under the limited circumstances where Mizuho Bank believes the transfer would conform to its compliance policies and procedures, applicable international sanctions laws, and after obtaining a license issued by Japan’s Ministry of Finance where necessary.

Other Jurisdictions

Our operations elsewhere in the world are subject to regulation and control by local supervisory authorities, including local central banks.

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4.C. Organizational Structure

The following diagram shows our basic corporate structure as of March 31, 2018:

The following table sets forth information with respect to our principal consolidated subsidiaries as of March 31, 2018:

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4.D. Property, Plant and Equipment

The following table shows the breakdown of our premises and equipment at cost as of March 31, 2017 and 2018:

Our head office is located at 1-5-5 Otemachi, Chiyoda-ku, Tokyo, Japan. The headquarter building is leased from a third party.

The total area of land related to our material office and other properties at March 31, 2018 was approximately 661,000 square meters for owned land and approximately 13,000 square meters for leased land.

Our owned land and buildings are primarily used by our branches. Most of the buildings and land owned by us are free from material encumbrances.

None.

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ITEM 5.    OPERATING AND FINANCIAL REVIEW AND PROSPECTS

The following discussion and analysis should be read in conjunction with “Item 3.A. Key Information—Selected Financial Data,” “Selected Statistical Data” and our consolidated financial statements, including the notes thereto, included elsewhere in this annual report.

Table of Contents for Item 5.

Overview

The Mizuho Group

We provide a broad range of financial services in domestic and overseas markets. The principal activities and subsidiaries are the following:

We also provide products and services such as those related to trust and custody, asset management, private banking, research services, information technology-related services and advisory services for financial institutions through various subsidiaries and affiliates.

For a further discussion of our business and group organization, see “Item 4.B. Information on the Company—Business Overview.”

Principal Sources of Income and Expenses

Net Interest Income

Net interest income arises principally from the lending and deposit-taking and securities investment activities of our banking subsidiaries and is a function of:

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Principal items constituting interest-earning assets include loans, investments, trading account assets, receivables under resale agreements and receivables under securities borrowing transactions. Principal items constituting interest-bearing liabilities include deposits, trading account liabilities, short-term borrowings (such as payables under repurchase agreements and payables under securities lending transactions) and long-term debt.

Provision (Credit) for Loan Losses

Provision (credit) for loan losses is charged against (or credited to) income to keep the allowance for loan losses at a level that is appropriate to absorb probable losses inherent in the credit portfolio. For a description of the approach and methodology used to establish the allowance for loan losses, see “—Financial Condition—Allowance for Loan Losses.”

Noninterest Income

Noninterest income consists mainly of fee and commission, investment gains (losses)—net, trading account gains (losses)—net and foreign exchange gains (losses)—net.

Fee and commission include the following:

Investment gains (losses)—net primarily include net gains and losses on sales of marketable securities, such as equity and bond investments. In addition, impairment losses are recognized when management concludes that declines in the fair value of investments are other-than-temporary.

Trading account gains (losses)—net include gains and losses from transactions undertaken for trading purposes, including both market making for customers and proprietary trading, or transactions through which we seek to capture gains arising from short-term changes in market value. Trading account gains (losses)—net also include gains and losses related to changes in the fair value of derivatives and other financial instruments not eligible for hedge accounting under U.S. GAAP that are utilized to offset mainly interest rate risk related to our various assets and liabilities, as well as gains and losses related to changes in the fair value of foreign currency-

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denominated available-for-sale securities that are elected for fair value treatment under ASC 825. For further information on the fair value option, see note 28 to our consolidated financial statements included elsewhere in this annual report.

Foreign exchange gains (losses)—net mainly include translation gains and losses related to our foreign currency-denominated assets and liabilities and gains and losses related to foreign exchange trading activities, including market making for customers and proprietary trading.

Noninterest Expenses

Noninterest expenses primarily include salaries and employee benefits, general and administrative expenses, occupancy expenses and fee and commission expenses.

Salaries and employee benefits include expenses incurred for salaries, bonuses and compensation to directors and employees. They also include expenses related to pension and other employee retirement benefit plans.

The principal items included in general and administrative expenses are amortization of software, tax expenses such as consumption tax and property tax that are not income taxes and other expenses, including premiums for deposit insurance.

The principal items included in occupancy expenses are expenses related to premises and equipment, including depreciation, losses on disposal and lease expenses.

The principal items included in fee and commission expenses are fee and commission expenses for remittance services, which mainly include commission expenses paid in connection with remittance transactions and the securities-related businesses, which mainly include transactions costs such as brokerage fees paid.

Operating Environment

We operate principally in Japan, and our performance has generally tracked the macro economy of Japan.

As to the recent economic environment, the gradual recovery in the global economy has continued backed by such factors as the pickup in the Chinese economy, the improvement related to the IT cycle and improvements in business confidence particularly in major industrialized countries.

In the United States, the economy continued to recover due to such factors as strong consumer spending resulting from improvements in employment and income conditions and the wealth effect due to increases in stock prices and capital investment resulting from expectation regarding the tax reduction measures by the United States administration. Under such circumstances, the Federal Reserve Board (“FRB”) pursued an exit strategy from monetary easing whereby, among other measures, the FRB raised interest rates in June 2017, September 2017, March 2018 and June 2018 and began implementing a policy of shrinking its balance sheet in October 2017.

In Europe, despite the downward pressure from the further appreciation of the euro, the economy continued to recover, backed by the continued expansion of consumer spending due to an increase in employment, in addition to the actualization of demand for capital investment that had been put off due to political uncertainty surrounding the presidential election in France. Given these conditions, the European Central Bank (“ECB”) determined to decrease monthly asset purchases by half and steered itself in the direction of pursuing an exit strategy from monetary easing, while leaving key interest rates unchanged.

In Asia, the Chinese economy remained strong, despite continued sluggishness in capital investment due to tighter financial regulations and policies to control real estate speculation, supported by such factors as strong

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consumer spending and expansion of exports, which were backed by income growth and governmental policies to support the economy adopted in preparation for the National Congress of the Communist Party of China in Fall 2017. The economies in emerging countries continued to recover due to such factors as China’s enduring economy and expansion of exports.

In Japan, the economy continued to recover due to such factors as overseas economic expansion and strong domestic demand. Regarding domestic demand, the improvement of the inventory cycle, the rise of capital investment related to the 2020 Tokyo Olympic Games and productivity improvements, as well as the implementation of public investment in connection with Japan’s economic stimulus measures, served to bolster growth. Consumer spending continued to pick up due to the replacement of durable goods and the effect of wage increases especially in SMEs. Under such circumstances, stock prices trended upward and the exchange rate continued to trend sideways; however, since February 2018, stock prices have entered a correction phase with a stronger yen due to the rise in long-term interest rates in the United States and concerns regarding the protectionist policies of the United States administration. On the other hand, long-term interest rates in Japan continued to remain low at around zero percent under the Bank of Japan’s “quantitative and qualitative monetary easing with yield curve control.”

As for the future outlook of the global economy, the recovery is expected to continue particularly in the United States, but it remains necessary to further monitor downturn risks such as the United States’ policy direction under its presidency, the political concerns in Europe, the economic outlook for China and heightening geopolitical risks. As for the future outlook of the Japanese economy, it is expected to continue on its gradual recovery path, supported by the effects of government economic measures and growth in consumer spending and capital investment. However, the potential impact of increasing uncertainty in overseas economies on Japan requires monitoring.

Key indicators of Japanese economic conditions in recent periods include the following:

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Japan’s real gross domestic product on a year-on-year basis increased by 1.4%, 1.2% and 1.6% in the fiscal years ended March 31, 2016, 2017 and 2018, respectively. Japan’s real gross domestic product on a quarterly basis, compared to the corresponding period of the previous year, increased consecutively from the first quarter of calendar year 2015 through the first quarter of calendar year 2018. Japan’s core nationwide consumer price index was unchanged in the fiscal year ended March 31, 2016, decreased by 0.2% in the fiscal year ended March 31, 2017 and increased by 0.7% in the fiscal year ended March 31, 2018.

The following chart shows movements in long-term interest rates from January 2015 to May 2018, represented by the yield on newly issued 10-year Japanese government bonds, and in short-term interest rates during the same period, represented by the uncollateralized overnight call rate used in the interbank market:

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The Nikkei Stock Average, which is an average of the price of 225 stocks listed on the Tokyo Stock Exchange, decreased by 12.7% to ¥16,758.67 during the fiscal year ended March 31, 2016, followed by a 12.8% increase to ¥18,909.26 during the fiscal year ended March 31, 2017 and a 13.5% increase to ¥21,454.30 during the fiscal year ended March 31, 2018. Thereafter, the Nikkei Stock Average increased to ¥22,201.82 as of May 31, 2018.

The yen to U.S. dollar spot exchange rate, according to the Bank of Japan, was ¥112.43 to $1.00 as of March 31, 2016, ¥111.80 to $1.00 as of March 31, 2017, and ¥106.19 to $1.00 as of March 30, 2018. Thereafter, the yen weakened to ¥108.77 to $1.00 as of May 31, 2018.

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Capital Improvements

All yen figures and percentages in this subsection are truncated.

We have been implementing disciplined capital management by pursuing the optimal balance between strengthening of stable capital base and steady returns to shareholders as described below.

Strengthening of Stable Capital Base

In the fiscal year ended March 31, 2018, we strengthened our capital base mainly as a result of earning ¥576.5 billion of profit attributable to owners of parent (under Japanese GAAP).

With respect to redemptions of previously issued securities, since April 2017, we have redeemed various securities that are eligible regulatory capital instruments subject to phase-out arrangements under Basel III upon their respective initial optional redemption dates or their respective maturity dates. With respect to Tier 1 capital, in June 2018, we redeemed ¥274.5 billion of non-dilutive Tier 1 preferred securities issued by our overseas special purpose company in January 2008. With respect to Tier 2 capital, in April 2017, January 2018 and March 2018, we redeemed ¥50.0 billion, ¥70.0 billion and ¥50.0 billion of dated subordinated bonds issued by our subsidiary bank in April 2007, January 2008 and March 2008, respectively.

With respect to Additional Tier 1 capital new issuances, in July 2017, we issued ¥460.0 billion of perpetual subordinated bonds with optional-redemption clause and write-down clause that are Basel III-eligible Additional Tier 1 capital instruments through public offerings to wholesale investors in Japan. With respect to Tier 2 capital new issuances, in June 2017, we issued ¥114.0 billion of dated subordinated bonds with a write-down feature that are Basel III-eligible Tier 2 capital instruments through public offerings to retail investors in Japan. In June 2018, we issued ¥40.0 billion and ¥70.0 billion of dated subordinated bonds with a write-down feature that are Basel III-eligible Tier 2 capital instruments through public offerings to wholesale and retail investors, respectively, in Japan.

Our Common Equity Tier 1 capital ratio under Basel III was 11.34% and 12.49% as of March 31, 2017 and 2018, respectively.

Steady Returns to Shareholders

Annual cash dividends for the fiscal year ended March 31, 2018 were ¥7.5 per share of common stock (including interim dividend payments of ¥3.75 per share), which was the same amount as the annual cash dividend per share for the previous fiscal year.

We continuously consider the optimal balance between strengthening of stable capital base and steady returns to shareholders. We will comprehensively consider the business environment such as the Mizuho group’s business results, profit base, capital, and domestic and international regulation trends such as the Basel framework and determine cash dividend payments for each term.

Business Trends

See “Item 4.B. Information on the Company—Business Overview,” “Item 5. Operating and Financial Review and Prospects—Operating Results” and “Item 5. Operating and Financial Review and Prospects—Financial Condition.”

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Others

Creation of New Business based on Digital Innovation

In July 2017, Mizuho Bank and WiL, LLC established a joint venture named Blue Lab, Co., Ltd. to drive business generation through innovative technological advances. Blue Lab is focused on the creation and commercialization of next-generation business models through open innovation. In September 2017, J. Score CO., Ltd, which was established as a 50/50 joint company of Mizuho Bank and Softbank Corp. and is a subsidiary of Mizuho Bank, began operations as Japan’s first score-based lending business based on big data and artificial intelligence technologies.

Merger of Mizuho Bank (USA) and Mizuho Trust & Banking Co. (USA)

In December 2017, two subsidiaries of Mizuho Americas LLC, namely the former Mizuho Bank (USA) and the Mizuho Trust & Banking Co. (USA), merged. The merged entity, Mizuho Bank (USA), provides both banking services and trust services. This merger streamlines Mizuho’s corporate operations in the United States, reinforcing its governance structure, while providing enhanced support to clients investing and expanding businesses in the United States.

Execution of Agreement Concerning the Integration of Trust Banks Specializing in Asset Administration Services (Joint Share Transfer)

In March 2018, Trust & Custody Services Bank, Ltd., a subsidiary of ours, executed a management integration agreement with Japan Trustee Services Bank, Ltd. to carry out the management integration through incorporation of a holding company by joint share transfer. The purpose of the integration is to contribute to further growth in the domestic securities settlement market and domestic investment chain by realizing more stable and higher quality operations and strengthening its system development capabilities by seeking the benefits of scale.

Fundamental Structural Reforms

The business environment surrounding financial institutions continues to be difficult, and we anticipate it will undergo major structural changes over time. Under these circumstances, we will undertake fundamental structural reforms in our business structure, and, based on a ten-year time horizon, we will strive to secure our sustainable growth and continued competitive advantage. We will utilize advanced technologies in accordance with our concept of open innovation to further develop our “One MIZUHO strategy” by, for example, (i) endeavoring to increase profit through actively pursuing collaborative engagement with other companies, not limited to financial activities, in order to create new business opportunities and (ii) endeavoring to strengthen cost competitiveness and enhance productivity while striving to optimize organization and staffing, restructure branch strategies and accomplish other related tasks.

Disposing of Our Cross-shareholdings

Reflecting the potential impact on our financial position associated with the risk of stock price fluctuation, as a basic policy, unless we consider holdings to be meaningful, we will not hold the shares of other companies as cross-shareholdings. We promote cross-shareholdings disposal through initiatives to enhance capital efficiency by implementing in-house company return on equity as an internal performance indicator. Under Japanese GAAP on an acquisition cost basis, our total Japanese stock portfolio (included within other securities which have readily determinable fair value) as of March 31, 2015 was ¥1,962.9 billion, and we have reduced such amount by ¥398.0 billion as of March 31, 2018.

Critical Accounting Estimates

Note 1 to our consolidated financial statements included elsewhere in this annual report contains a summary of our significant accounting policies. These accounting policies are essential to understanding our financial

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condition and results of operations. Certain of these accounting policies require management to make critical accounting estimates that involve complex and subjective judgments and the use of assumptions, some of which may be for matters that are inherently uncertain and susceptible to change. Such critical accounting estimates are based on information available to us as of the date of the financial statements and could change from period to period. Critical accounting estimates could also involve estimates for which management could have reasonably used another estimate for the relevant accounting period. The use of different estimates could have a material impact on our financial condition and results of operations. The following is a discussion of significant accounting policies for which critical accounting estimates are used.

Allowance for Loan Losses and Allowance for Losses on Off-Balance-Sheet Instruments

The allowance for loan losses is based on management’s estimate of probable credit losses existing in our lending portfolio, and the allowance for losses on off-balance-sheet instruments is based on management’s estimate of probable losses related to off-balance-sheet arrangements such as guarantees and commitments to extend credit.

The allowance for loan losses is categorized and evaluated using the following methods:

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We assess probable loss amounts for guarantees by using the same categories and evaluation methods as loans. We similarly assess probable loss amounts for loan commitments, taking into account the probability of drawdowns.

The determination of the allowance for loan losses and the allowance for losses on off-balance-sheet instruments requires a great deal of judgment and the use of estimates as discussed above. Furthermore, information available at the time of the determination is limited, and it is not possible to eliminate uncertainty. Significant changes in any of the factors underlying our determination of the allowances could materially affect our financial condition and results of operations. For example, if our current judgment with respect to expected future cash flows differs from actual results, including as a result of an unexpected adverse change in the economic environment in Japan or a sudden and unanticipated failure of a large borrower, or if the value of collateral declines, we may need to increase the allowances with additional charges to earnings.

Valuation of Financial Instruments

ASC 820, “Fair Value Measurement” (“ASC 820”) specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. The standard describes the following three levels of inputs that may be used to measure fair value:

For assets and liabilities classified in Level 1 and 2 of the hierarchy, where inputs are principally based on observable market data, there is less judgment or estimate in determining fair value, while the determination of fair value of Level 3 assets and liabilities involves more significant management judgments and estimates. For further information, including valuation methodologies and the use of management estimates and judgments in connection therewith, see note 28 to the consolidated financial statements included elsewhere in this annual report.

Valuation of Deferred Income Taxes

Deferred income taxes reflect the net tax effects of (1) temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes, and (2) operating loss and tax credit carryforwards. Pursuant to ASC 740, “Income Taxes” (“ASC 740”), a valuation allowance is recognized for any portion of the deferred tax assets where it is considered more likely than not that it will not be realized, based on projected future income, future reversals of existing taxable temporary differences and tax-planning strategies. Because we have not opted to be subject to consolidated taxation, deferred tax assets and liabilities, including the impact of a valuation allowance, are calculated separately for each member of our consolidated group.

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The determination of a valuation allowance is an inherently uncertain process due to the use of projected future taxable income and subjective assessments in the effectiveness of our available tax-planning strategies provided for under ASC 740. Variances in future projected operating performance or tax law changes could result in a change in the valuation allowance. Variances in the net unrealized gains on available-for-sale securities could also affect a change in the valuation allowance, because we consider the sales of available-for-sale securities to be a qualifying tax-planning strategy that is a possible source of future taxable income mainly with respect to our principal banking subsidiaries in Japan. Although we evaluate that this tax-planning strategy is prudent and feasible, it has limitations and risks such as the decrease in net unrealized gains on available-for-sale securities that are available to be utilized in the future. If we are not able to realize all or part of our net deferred tax assets in the future, an adjustment to our valuation allowance would be charged to income tax expense in the period when such determination is made, and this could materially and adversely affect our financial condition and results of operations.

Pension and Other Employee Benefit Plans

Mizuho Financial Group, its principal banking subsidiaries and certain other subsidiaries sponsor severance indemnities and pension plans, which provide defined benefits to retired employees. Periodic expense and accrued liabilities are computed based on a number of actuarial assumptions, including mortality, withdrawals, discount rates, expected long-term rates of return on plan assets and rates of increase in future compensation levels.

Actual results that differ from the assumptions are accumulated and amortized over future periods and therefore generally affect future pension expenses. While management believes that the assumptions used are appropriate, differences in actual experience or changes in assumptions may adversely affect pension expenses in the future.

In estimating the discount rates, we use interest rates on high-quality fixed-income government and corporate bonds. The durations of such bonds closely match those of the benefit obligations. Assumed discount rates are reevaluated at each measurement date.

The expected rate of return for each asset category is based primarily on various aspects of the long-term prospects for the economy that include historical performance and the market environment.

For further information on our pension and other employee benefits, see note 21 to the consolidated financial statements included elsewhere in this annual report.

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Operating Results

The following table shows certain information as to our income, expenses and net income for the fiscal years ended March 31, 2016, 2017 and 2018:

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The following is a discussion of major components of our net income attributable to MHFG shareholders for the fiscal years ended March 31, 2016, 2017 and 2018.

Net Interest Income

The following table shows the average balances of interest-earning assets and interest-bearing liabilities, interest amounts and the average interest rates on such assets and liabilities for the fiscal years ended March 31, 2016, 2017 and 2018: