Petratherm Limited, together with its subsidiaries, engages in the mineral exploration activities. The company explores for gold, copper, iron-oxide, and rare earth minerals. It holds interest in the Mabel Creek Copper-Gold project covering an area of 3,798 square kilometers located in Queensland, Australia; the Comet project covering an area of 1,915 square kilometers located in South Australia. In addition, the company owns interest in the Woomera Copper-Gold project covering 668 square kilometers located in South Australia. Petratherm Limited was incorporated in 2003 and is based in Norwood, Australia.