PT Amman Mineral Nusa Tenggara (AMNT) is an Indonesian mining company which operates the Batu Hijau mine. AMNT owns several other most promising prospects of copper and gold located in West Sumbawa Regency, West Nusa Tenggara Province. Batu Hijau mine is the second largest copper and gold mine in Indonesia and a world class asset. With the full support from its shareholders, AMNT is committed to adopting the best and sustainable operating procedure by applying the most advanced green technology available.