Exhibit 1

Exhibit 1

Joint Filing Agreement

The undersigned hereby agree that the statement on Schedule 13G with respect to the ordinary shares of China Petroleum and Chemical Corporation, dated as of February 5, 2004 is, and any amendments thereto signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934.

Date 5 February 2004 BP p.l.c.:

By: /s/ David Pearl

(Signature)

Deputy Company Secretary

(Title)

Date 5 February 2004 BP Global Investments Limited

By: /s/ FWM Starkie

(Signature)

Director

(Title)

Date February 5, 2004 BP Espana S.A.

By: /s/ Jose Andres

(Signature)

Director/Attorney

(Title)

Date February 5, 2004 BP Oil Espana S.A.

By: /s/ Jose Andres

(Signature)

Attorney

(Title)