A smelter company that produces sponge iron or also well known as Direct Reduction Iron (DRI).

Krakatau Steel bermitra dengan PT Aneka Tambang Tbk (ANTAM), BUMN yang kompetensi utamanya dalam bidang industri pertambangan dan membentuk perusahaan patungan yang diberi nama PT Meratus Jaya Iron & Steel (MJIS) untuk mewujudkan rencana pengembangan industri besi baja di Kalimantan Selatan.

PT Smelting was established in February 1996 as the first copper smelter and refinery in Indonesia with approximately US $500 million for direct construction cost.