De Grey Mining Limited is a mineral exploration and development company based in West Perth, Australia. The company is primarily focused on exploring and developing mineral properties in Australia, with a particular focus on gold, silver, zinc, lead, and lithium deposits. It holds interests in the Mallina Gold project, which covers an area of approximately 1,500 square kilometers in the Pilbara region of Western Australia. Founded in 2002, De Grey Mining Limited has established itself as a leading player in Australia's mining industry.