Constructed in just 14 months, the AMNT copper smelter and precious metal refinery is regarded as one of the fastest mega-project developments globally for projects of its scale. This facility has been identified as a National Strategic Project, with a construction investment of Rp21 trillion (approximately USD1.38 billion).

Located approximately 1.5 kilometers from Benete Port, the smelter spans a vast area of 272 hectares. Utilizing advanced double flash smelting technology—which combines flash smelting and converting processes—the facility boasts an annual processing capacity of 900 thousand tons of copper concentrate. This raw material is sourced from two of Indonesia’s major mines: the Batu Hijau mine and the Elang mine. Additionally, the facility processes 139 thousand tons of silica flux annually.

Impressive Production Capacities

The copper smelter produces 220 thousand tons per year of LME Grade A copper cathode, with a purity of 99.99 percent. This high-quality copper is crucial for various industries, including electronics and construction. Alongside this, the facility produces 830 thousand tons of sulfuric acid annually, with a purity of 98.50 percent, which is widely used in industrial processes.

The precious metal refining component of the facility produces several valuable outputs. These include 18 tons of gold bars per year, with a purity of 99.99 percent; 55 tons of silver bars annually, at 99.95 percent purity; and 77 tons of selenium annually, with 99.9 percent purity. Additionally, 987 tons of anode mud are refined each year, highlighting the facility’s capacity for high-value outputs.

Supporting Downstream Industries