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ANTAM's gold and refinery business segment consists of gold commodity, silver and precious metals processing and refinery services. Gold and silver commodity of ANTAM was produced through mining activity and gold ore smelting to dore bullion. The ANTAM gold ore mining is produced from Pongkor mining site, West Java and Cibaliung, Banten, which has started the post-mining phase.
Bauxite is the main source of ore alumunium production. Bauxite contains alumina (AI203) and a mixture of silica, various iron oxides, and titanium dioxide. ANTAM plans to augment the value of its bauxite reserves though the development of alumina projects.
ANTAM, through its subsidiary PT Indonesia Coal Resources, produces coal from the Sarolangun coal mine located in Jambi Province, Indonesia. ANTAM currently sells its coal to the export as well as domestic markets.
Geomin Unit is one of five operational units of PT ANTAM Tbk ("ANTAM"). Geomin Unit has the main responsibility of managing and developing exploration activities as well as finding new mineral reserves and resources. Established in the late 1970s, the Geomin Unit has more than 30 years of experience in mining exploration activities notably in valuable minerals such as nickel, bauxite, gold and iron ore. Geomin Unit has conducted exploration activities throughout Indonesia, from the east through the west region of the minerals-rich achipelago.
ANTAM’s nickel operating segment is comprised of ferronickel and nickel ore sales. Ferronickel production originated from the Company’s Kolaka Nickel Mining Business Unit. Production of nickel ore originated from the nickel mine in Kolaka, Southeast Sulawesi which was operated by the Kolaka Nickel Mining Business Unit, nickel mine in North Konawe, Southeast Sulawesi which was operated by North Konawe Nickel Mining Business Unit, nickel mine in East Halmahera which was operated by the North Maluku Nickel Mining Business Unit, and nickel mine in Gag Island, West Papua, operated by ANTAM’s subsidiary, PT Gag Nikel.
Other products manufactured by ANTAM