Estrella Resources Limited (ASX:ESR) is a minerals exploration and development company focused on nickel and manganese projects in Western Australia and Timor-Leste. The company holds 100% interests in the Carr Boyd Nickel Project, comprising three mining leases and six exploration licenses near Kalgoorlie-Boulder; the Spargoville Nickel Project, a high-grade nickel opportunity southwest of Kambalda; and the Timor-Leste Project, targeting emerging manganese assets and high-quality limestone in a virtually unexplored territory. Estrella Resources conducts advanced exploration activities, including drilling, prospecting, and resource definition, primarily serving the global demand for nickel sulphides and manganese in sectors such as electric vehicles, renewable energy, and industrial applications. Founded in 2011 and headquartered in Perth, Australia, the company operates through one business segment of mineral resource exploration across Australia and Southeast Asia. Recent developments include a $5 million strategic investment tranche from MJ Ratta Investments in June 2025 under a subscription agreement originally announced in September 2024, bolstering its balance sheet for accelerated drilling and development studies in Timor-Leste; a transformational master agreement in May 2025 with PT Raka Energi Mandiri for exclusive marketing and offtake of up to 500 million dry metric tonnes of limestone over five years into Indonesia, subject to JORC-compliant resources and a scoping study by Q4 2025; and the commencement of modern metallic minerals drilling programs, including 3,000 meters diamond and 10,000 meters RC drilling following environmental approvals.