0000912057-01-516606 SC 13D/A 1 20010517 AMERICAS MINING CORPORATION ASARCO INC GRUPO MEXICO, S.A. DE C.V. SOUTHERN PERU HOLDINGS CORPORATION SOUTHERN PERU COPPER CORP/ 0001001838 1000 133849074 DE 1231 SC 13D/A 34 005-44663 1642231 180 MAIDEN LANE NEW YORK NY 10038 2125102000 180 MAIDEN LANE 180 MAIDEN LANE NEW YORK NY 10038 SOUTHERN PERU COPPER HOLDING CO 19951006 ASARCO INC 0000007649 3330 134924440 DE 1231 SC 13D/A 180 MAIDEN LN NEW YORK NY 10038 2125102000 AMERICAN SMELTING & REFINING CO 19760607 SC 13D/A 1 a2049681zsc13da.txt SCHEDULE 13D