Privately held Brazilian bauxite miner at Porto Trombetas in western Pará, with operations in Oriximiná and Terra Santa inside the Saracá-Taquera National Forest; it has operated since 1979 and produces more than 12 million tonnes a year. Its shareholders are Glencore (45%), South32 (33%) and Rio Tinto (22%) per a 2023 chart.

Stakeholder group

Mining companies

Headquarters

Brazil

Website

mrn.com.br ↗

Profile compiled from public sources (mrn.com.br), checked 2026-10-30. Report an error