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Amman Mineral Nusa Tenggara claiming that this practice is more environmentally sound despite being more costly to the company. The process involves piping the tailings 2.1 miles (3.4 km) off the coast to a drop-off of 400 feet (120 m), which carries the waste down another 10,000 feet (3,000 m).
The Indonesian government has approved one-year export allowances for copper concentrate for miners PT Freeport Indonesia and PT Amman Mineral Nusa Tenggara, officials from the Ministry of Energy ...
Two more smelters, one in Gresik as Freeport's second smelter and another by Amman Mineral (Batu Hijau's new operator) in West Sumbawa, were inaugurated in September 2024. [8] As of 2024, further mining projects are in development in Banyuwangi, East Java , in Gorontalo , and in Beutong , Aceh .
Operated by PT Amman Mineral Nusa Tenggara (formerly by Newmont Mining Corporation), Batu Hijau has been a significant contributor to the regional and national economy. The mine generates substantial export revenue through the extraction of copper and gold, which are critical to global industries ranging from electronics to energy production.
PT Newmont Nusa Tenggara is a subsidiary company of Newmont Mining Corporation that operates their Batu Hijau mine in Indonesia on the island of Sumbawa. [1]Newmont holds a 45% stake in the company while the Sumitomo Corporation from Japan holds an additional 35% and Indonesian company P.T. Pukuafu Indah holds the remaining 20%. [2]
Newmont Nusa Tenggara: Open pit Grasberg: Copper and gold: Freeport Indonesia: Open pit Bangka Island: Tin: Timah Buton Island: Asphalt: Buton Asphalt Indonesia Lhokseumawe: Natural gas: Arun Natural Gas Liquefaction Sangatta: Coal Kaltim Prima Coal Kencana: Gold and silver: Pongkor Gold Aneka Tambang Underground Halmahera: Nickel Eramet ...
The Indonesian Ministry of Energy and Mineral Resources reported in 2020 that Indonesia was the world's second-largest producer of tin behind China, with an annual production of 78,000 tonnes and a proven deposit of 800,000 tonnes. [14]
Most of Indonesia's known reserves of bauxite are located in the Riau Islands (namely Bintan), the Bangka Belitung Islands, and West Kalimantan. [6] The reserves are in form of laterite ores, [7]: 163 and the United States Geological Survey gave a figure of 1.2 billion tonnes of bauxite in Indonesia's reserves.