Businessweek

laria and Ojos del Salado mines produce gold and silver. Cerro Verde The company has a 53.56 percent ownership interest in Cerro Verde, with the remaining 46.44 percent held by SMM Cerro Verde Netherlands B.V. (21.0 percent), Compañia de Minas Buenaventura S.A.A. (19.58 percent) and other stockholders whose shares are publicly traded on the Lima Stock Exchange (5.86 percent). Cerro Verde is an open-pit copper and molybdenum mining complex and is located 20 miles southwest of Arequipa, Peru. The Cerro Verde mine is a porphyry copper deposit that has oxide and secondary sulfide mineralization, and primary sulfide mineralization. Cerro Verde’s operation consists of an open-pit copper mine, a 120,000 metric ton-per-day concentrator and SX/EW leaching facilities. This leaching operation has a capacity of approximately 200 million pounds of copper per year. The available fleet consists of thirty-two 230-metric ton haul trucks loaded by 4 electric shovels with bucket sizes ranging in size from 33 to 53 cubic meters and 1 hydraulic shovel with a bucket size of 21 cubic meters, which are capable of moving an average of 337,000 metric tons of material per day. El Abra The company owns a 51 percent interest in El Abra, and the remaining 49 percent interest is held by the state-owned copper enterprise Corporación Nacional del Cobre de Chile. The El Abra mine is a porphyry copper deposit that has sulfide and oxide mineralization. The El Abra operation consists of an open-pit copper mine and a SX/EW facility with a capacity of 500 million pounds of copper cathode per year from a 125,000 metric ton-per-day crushed leach circuit and a similar-sized ROM leaching operation. The available fleet consists of forty 220-metric ton haul trucks loaded by 4 shovels with buckets ranging in size from 26 to 41 cubic meters, which are capable of moving an average of 223,000 metric tons of material per day. Candelaria and Ojos del Salado Candelaria The company has an 80 percent ownership interest in Candelaria, with the remaining 20 percent interest owned by affiliates of Sumitomo Corporation. The Candelaria mine is an iron oxide, copper and gold deposit. The Candelaria operation consists of an open-pit copper mine and a 6,000 metric ton-per-day underground copper mine, which is mined by sublevel stoping, feeding a 75,000 metric ton-per-day concentrator. The available fleet consists of forty-eight 225-metric ton haul trucks loaded by 6 shovels with bucket sizes ranging from 28 to 43 cubic meters, which are capable of moving 250,000 metric tons of material per day. Ojos del Salado The company has an 80 percent ownership interest in Ojos del Salado, with the remaining 20 percent interest owned by affiliates of Sumitomo Corporation. The Ojos del Salado consists of 2 underground copper mines (Santos and Alcaparrosa) and a 3,800 metric ton-per-day concentrator. The operation is located approximately 10 miles east of Copiapó in northern Chile’s Atacama province, Region III. The Ojos del Salado mines are iron oxide and copper and gold deposits. Primary sulfide mineralization consists of chalcopyrite. INDONESIA PT Freeport Indonesia is a limited liability company organized under the laws of the Republic of Indonesia and incorporated in Delaware. The company owns 81.28 percent of the outstanding common stock of PT Freeport Indonesia and indirectly own 9.36 percent through its wholly owned subsidiary, PT Indocopper Investama; the Indonesian government owns the remaining 9.36 percent. In Indonesia, PT Freeport Indonesia operates the mines in the Grasberg minerals district. In addition to copper, the Grasberg minerals district also produces significant quantities of gold and silver. The company has certain unincorporated joint ventures with Rio Tinto plc (Rio Tinto), under which Rio Tinto has a 40 percent interest in certain assets and production exceeding specified annual amounts of copper, gold and silver. The company also conducts exploration activities in Papua through two other entities: PT Irja Eastern Minerals (Eastern Minerals), of which it owns 100 percent, and PT Nabire Bakti Mining (PTNBM). The equipmen