AMMAN Copper Smelter in West Sumbawa Completed
PT AMMAN Mineral Internasional Tbk. (AMMAN) has announced that construction of its copper smelter facility in West Sumbawa Regency, West Nusa Tenggara, has been completed. AMMAN President Director Arief Sidarto said the project is the result of collaboration with various parties to build the world’s most advanced integrated copper smelter and precious metals refining complex.
“The operation of this smelter affirms our commitment to supporting the national downstreaming agenda,” he said in a written statement on Friday, 24 July 2026.
The project’s completion was marked by the signing of the Completion and Project Acceptance Certificate (PAC) between AMMAN and China Nonferrous Metal Industry’s Foreign Engineering and Construction Co., Ltd. (NFC) at NFC’s headquarters in Beijing, China, on 18 July 2026. The signing also declared the completion of all construction work and the resolution of punch list items relating to commissioning within the scope of the contract.
Although the copper smelter has been operating for more than a year, this milestone proves that it has successfully passed all performance guarantee tests, as required by the contract, and has officially entered the long-term operational phase.
“Going forward, we hope for a supportive policy ecosystem for the competitiveness of the domestic processing and mining industry,” said Arief.
The facility, which is part of the National Strategic Projects (PSN), is designed to process up to 900,000 metric tonnes of concentrate per year sourced from the Batu Hijau mine and subsequently from the Elang mine. The complex will produce high-quality copper cathodes, gold, silver, sulphuric acid, and selenium.
These mineral products are intended to meet the needs of renewable energy, including electric vehicles and digital technology. All will contribute to meeting the world’s growing demand for critical minerals.
Arief claimed the facility is designed to achieve optimal metal recovery rates, energy efficiency, and strong operational reliability, alongside sustainable and responsible resource management.