SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    Form 6-K

                        REPORT OF FOREIGN PRIVATE ISSUER
                     PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
                       THE SECURITIES EXCHANGE ACT OF 1934

     For the month of April 2004
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                                  Kookmin Bank
                                  ------------
                 (Translation of registrant's name into English)

             9-1, 2-Ga, Namdaemun-Ro, Jung-Gu, Seoul, Korea 100-703
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                     (Address of principal executive office)

     Indicate by check mark whether the registrant files or will file annual
reports under cover of Form 20-F or Form 40-F.

                           Form 20-F  X       Form 40-F
                                     ---                -----

     Indicate by check mark if the registrant is submitting the Form 6-K in
paper as permitted by Regulation S-T Rule 101(b)(1):
                                                    -------

     Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of
a Form 6-K if submitted solely to provide an attached annual report to security
holders.

          Indicate by check mark if the registrant is submitting the Form 6-K in
paper as permitted by Regulation S-T Rule 101(b)(7):
                                                    -------

     Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of
a Form 6-K if submission to furnish a report or other document that the
registration foreign private issuer must furnish and make public under the laws
of the jurisdiction in which the registrant is incorporated, domiciled or
legally organized (the registrant's "home country"), or under the rules of the
home country exchange on which the registrant's securities are traded, as long
as the report or other document is not a press release, is not required to be
and has not been distributed to the registrant's security holders, and if
discussing a material event, has already been the subject of a Form 6-K
submission or other Commission filing on EDGAR.

     Indicate by check mark whether by furnishing the information contained in
this Form, the registrant is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

                                 Yes      No  X
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              Establishment of a New Subsidiary, KB Life Co., Ltd.

On April 30, 2004, Kookmin Bank announced that it established a new subsidiary,
KB Life Co., Ltd. to engage in insurance business. The establishment details are
as follows:

     .    Number of shares issued: 6,000,000 shares

     .    Par value: KRW 5,000

     .    Paid-in capital: KRW 30 billion

     .    Date of incorporation: April 29, 2004

     .    Kookmin Bank ownership: 100%


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                                   SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.



                                     Kookmin Bank
                                     -------------------------------------------
                                     (Registrant)



Date: April 30, 2004                 By:/s/ Ki Sup Shin
                                     -------------------------------------------
                                     (Signature)

                                     Name:    Ki Sup Shin
                                     Title:   Senior Executive Vice President &
                                              Chief Financial Officer


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