n EXHIBIT 99.1

Changes in Subsidiaries and Affiliates

n	POSDATA, which is a subsidiary of POSCO, acquired 100% stake of &TV Communications Inc.
n	Therefore, &TV Communications Inc. was included in POSCO’s subsidiaries and affiliates.
n	The number of POSCO’s subsidiaries and affiliates has changed from 102 to 103.
n	Details of the company are as follows.

1) &TV Communications Inc

— Asset (KRW): 6,096,450,000

— Equity (KRW): 6,096,450,000

— Liabilities (KRW): —

— Capital Stock (KRW): 6,096,450,000

— Purpose of the company: IPTV service

• Date of Addition: May 15, 2008

• The above amount is applied with the exchange rate on May 15 ,2008. (W/$=1,047.50)