(Facility) Las Ventanas Copper Smelter

PINCOCK, ALLEN & HOLT, INC.; THE DEVELOPMENT OF ENGINEERING,OPERATING AND ENVIRONMENTAL COST DATA FOR INTERNATIONALCOPPER SMELTING AND REFINING OPERATIONS - LAS VENTANAS(ENAMI), CHILE. BUMINES CONTRACT J0290007; FOR INF.,CONTACT S.W. TOWLE, TPO, BUMINES-MAFO, DENVER, CO.CHARLES RIVER ASSOCIATES, LAS VENTANAS SMELTER SMELTERSMELTER PROFILE, AUGUST 18, 1986."LAS VENTANAS SMELTER SET TO LOSE CAPACITY", METALSBULLETAN, 7/19/93, P. 6."ENAMI CONTRACT TO CHILE-GERMAN CONSORTIUM", LATINAMERICAN MINING LETTER, 11/15/93, PP. 5, 6.CHARLES RIVER ASSOCIATES, SMELTER PROFILE LAS VENTANASSMELTER, AUGUST 18, 1986.THE UNITED NATIONS PANEL ON INTERNATIONAL MINING FINANCE;FINANCIAL REQUIREMENTS FOR MINING IN DEVELOPING COUNTRIESAPPENDIX 1, PART A, 1977, P. 19.BROOK HUNT AND ASSOCIATES; COPPER, QUARTERLY SERVICE ISSUE1, 1977, P. 3.21.