Regis Resources Limited Regis Resources Limited (ASX:RRL) is an Australian gold producer and explorer engaged in the exploration, development, and production of gold projects primarily in Western Australia and New South Wales. The company operates the Duketon gold project in the North Eastern Goldfields region of Western Australia, encompassing multiple open-pit and underground mines including Garden Well, Rosemont, and Mako, with processing capacity exceeding 10 million tonnes per annum; it holds a 30% interest in the Tropicana gold joint venture, managed by AngloGold Ashanti, featuring open-pit and underground operations approximately 330 kilometres east-northeast of Kalgoorlie; and it advances the McPhillamys gold project, a high-grade open-pit development in the Central Western region of New South Wales. Regis Resources produces unhedged gold, targeting 350,000 to 380,000 ounces annually at all-in sustaining costs of A$2,440 to A$2,740 per ounce, with a resource base of approximately 7 million ounces and reserves of 1.5 million ounces, serving institutional investors and maintaining low sovereign risk through domestic operations. Founded in 1986 as Johnson’s Well Mining NL and renamed Regis Resources Limited in 2008, the company is headquartered at 516 Hay Street, Subiaco, Western Australia. Recent developments include the July 2025 acquisition of the Southern Star prospect from Great Southern Mining (ASX:GSN) for up to A$9 million, comprising an initial A$4 million payment and contingent considerations tied to gold prices and mineralization discoveries, alongside a strategic data-sharing alliance to accelerate exploration in the Duketon Greenstone Belt; a multi-year underground mining strategy at Duketon aiming for four active mines producing 200,000 to 250,000 ounces sustainably; achievement of the upper end of FY2025 production guidance at 373,000 ounces; and progression of renewable energy integration at Tropicana, including commissioned solar and battery storage systems as part of Australia’s largest off-grid hybrid power facility.