Lachlan Star Limited, together with its subsidiaries, engages in the exploration of mineral properties in Australia. It explores for gold, silver, copper, nickel, cobalt, lead, zinc, and PGE deposits. The company holds 100% interests in the Princhester Magnesite project that includes two granted mining leases located to the northwest of Rockhampton, Queensland; and the Killaloe gold project consists of two contiguous exploration licenses and the separate Buldania mining license covering an area of approximately 94 square kilometers located in the Eastern Goldfields, Western Australia. It also holds 75% interest in the Koojan project located in the New Norcia region, Western Australia. The company was formerly known as Toodyay Resources Limited and changed its name to Lachlan Star Limited in November 2007. Lachlan Star Limited was incorporated in 1970 and is based in West Perth, Australia.