Mineral Resources Star Mountains Limited (MRSM) was incorporated under the PNG Companies Act in 2001 to hold the landowners 9% direct equity interest in OTML, in trust for the benefit for the ten Ok Tedi landowning villages.

MRSM is administered by Mineral Resources Development Company (MRDC) through a management agreement.

MRDC is a company wholly-owned by the state, and was the nominee to acquire the state’s equity interests in mining and petroleum projects in PNG, until changes in legislation transferred state asset ownership to other equity and royalty interests in mining and petroleum projects in Papua New Guinea.