Antam Tayan Chemical Grade Alumina Project Chemical ...
Indonesian stateowned metals and mining company PT Aneka Tambang, also known as PT Antam, constructed a new chemical grade alumina (CGA) project on a 36,410ha site in the Sanggau Regency, Tayan in the province of West Kalimantan. The plant produces a variety of alumina grades such as calcined and commodity products.