Lefroy Exploration Limited engages in the exploration and evaluation of mineral properties in Western Australia. The company explores for gold, copper, and nickel deposits. Its flagship project is the 100% owned Lefroy Gold project, which covers an area of approximately 635 square kilometers located to the southeast of Kalgoorlie. The company was formerly known as U.S. Masters Holdings Limited and changed its name to Lefroy Exploration Limited in September 2016. Lefroy Exploration Limited was incorporated in 1990 and is headquartered in Road Town, British Virgin Islands.