Operator of the Gresik copper smelter and refinery in East Java, the first copper smelter and refinery in Indonesia, which produces grade A copper cathode and sulphuric acid. It was set up after PT Freeport Indonesia invited Mitsubishi Materials in 1994 to build the plant together.

Stakeholder group

Processing, refining, magnets and recycling

Headquarters

Indonesia

Website

ptsmelting.com ↗

Profile compiled from public sources (ptsmelting.com), checked 2026-10-15. Report an error