Change in Subsidiary

On April 30, 2009, the board of directors of KB Financial Group Inc. (“KB
Financial Group”) resolved to add KB Life Insurance Co., Ltd. (“KB Life
Insurance”) as a first-tier subsidiary.  Currently, KB Life Insurance is a
subsidiary of Kookmin Bank, a first-tier subsidiary of KB Financial Group. Key
details are as follows:

1. Information regarding KB Life Insurance:

- Key financial figures (as of March 31, 2009):
  o Total Assets (KRW): 1,952,359 million
  o Total Liabilities (KRW): 1,818,524 million
  o Total Stockholders’ Equity (KRW): 133,834 million
  o Capital Stock (KRW): 156,000 million

- Primary areas of business: life insurance, third area insurance, re-insurance
and asset management

2. Shareholding: Upon completion of the addition, KB Financial Group is expected
to directly hold 51.0% of the outstanding shares of KB Life Insurance

3. Total number of first-tier subsidiaries of KB Financial Group after addition
of KB Life Insurance: 9

4. Other relevant information:

- The key financial figures provided above are currently being audited by KB
Life Insurance’s independent auditor and thus remain subject to change.

- The change in subsidiary described above remains subject to regulatory
approval for the change in the majority shareholder of KB Life Insurance, and is
expected to be completed in late June 2009.

- The purpose of the addition of KB Life Insurance as a first-tier subsidiary of
KB Financial Group is to satisfy the requirement under the Financial Holding
Company Act to remove KB Life Insurance as a subsidiary of Kookmin Bank within
two years from the establishment of KB Financial Group.