• Breakthrough marks the first domestically sourced and refined antimony metal in decades
• Validates a 100% American mine-to-metal supply chain
• Supports U.S. government initiatives to secure critical minerals

Locksley Resources Ltd (ASX: LKY, OTCQX: LKYRF, FSE: X5L) has announced a significant milestone with the production of a 100% American made antimony ingot, marking the return of the first U.S. domestic antimony metal production in decades. The milestone represents proof-of-concept for a fully American mine-to-metal supply chain, from ore sourced at the Company's Mojave Desert Antimony Mine in California, through to refining entirely within the U.S. by Hazen Research Inc. This breakthrough directly supports U.S. government and Presidential Executive Orders aimed at re-establishing domestic production of critical minerals vital to defense, clean energy, and strategic manufacturing supply chains. Locksley is working closely with its strategic partners, including Washington D.C. based advisors GreenMet, to advance permitting and funding initiatives to support the next stage of the Company's commercialisation strategy. Following the successful validation of the first 100% American-made antimony ingot, Locksley Resources is now advancing towards pilot-scale production, a key step in confirming metallurgical recoveries, process efficiency, and scalability for future commercial supply. The milestone coincides with a significant step-up in bilateral critical minerals dialogue between the United States and Australia, underscored by Prime Minister Albanese's upcoming meeting with President Trump in Washington, D.C.

Locksley is advancing pilot-scale production to confirm scalability and targeting commercial supply to U.S. defense and industrial sectors.

Locksley is transitioning from validation to pilot-scale and pre-commercial operations in the United States, focusing on scaling, refining, and positioning the Company for government and industry engagement.