EX-99.1 3 efc3-1805_ex991.txt EXHIBIT 99.1 The following filers have designated Grupo Mexico, S.A. de C.V. as the "Designated Filer" for purposes of the attached Form 4:
Name: Grupo Minero Mexico Internacional, S.A. de C.V. Address: Baja California 200 Colonia Roma Sur 06760 Mexico City, Mexico Designated Filer: Grupo Mexico, S.A. de C.V. Issuer & Ticker Symbol: Southern Peru Copper Corporation (PCU) Date of Event Requiring Statement: December 4, 2003 Signature: Grupo Minero Mexico Internacional, S.A. de C.V. /s/ Eduardo Gonzalez Felix December 9, 2003 ---------------------------------------------- ---------------- Eduardo Gonzalez Felixo Date Managing Director **Signature of Reporting Person Name: Americas Mining Corporation Address: 2575 East Camelback Road, Suite 500 Phoenix, Arizona 85016 Designated Filer: Grupo Mexico, S.A. de C.V. Issuer & Ticker Symbol: Southern Peru Copper Corporation (PCU) Date of Event Requiring Statement: December 4, 2003 Signature: Americas Mining Corporation /s/ Hector Nieto Costilla December 9, 2003 ---------------------------------------------- ---------------- Hector Nieto Costilla Date Managing Director **Signature of Reporting Person Name: Controladora Minera Mexico, S.A. de C.V. Address: Baja California 200 Colonia Roma Sur 06760 Mexico City, Mexico Designated Filer: Grupo Mexico, S.A. de C.V. Issuer & Ticker Symbol: Southern Peru Copper Corporation (PCU) Date of Event Requiring Statement: December 4, 2003 Signature: Controladora Minera Mexico, S.A. de C.V. /s/ Hector Garcia de Quevedo December 9, 2003 ---------------------------------------------- ---------------- Hector Garcia de Quevedo Date Managing Director **Signature of Reporting Person
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).