Moly Mines Limited, together with its subsidiaries, engages in the mining, exploration, evaluation, and development of mineral resources in Australia. The company operates through two segments, Spinifex Ridge Molybdenum/Copper Project and Spinifex Ridge Iron Ore Project. Its projects are located in the Pilbara region of Western Australia. The company was incorporated in 2003 and is based in West Perth, Australia. Moly Mines Limited operates as a subsidiary of Hanlong Mining Investment Pty Ltd.