Battery Mineral boosts underground Punitaqui production

Mr. Lazaros Nikeas reports BATTERY MINERAL RESOURCES CORP. PROVIDES UPDATE ON THE PUNITAQUI COPPER PROJECT Battery Mineral Resources Corp. has provided an update to its shareholders on operational improvements at the Punitaqui copper project in Chile. Laz Nikeas, chief executive officer of Battery Mineral, stated: "We are pleased to share an update on our growing copper production at Punitaqui. BMR's primary focus continues to be on maximizing concentrate throughput to generate cash flow. We are encouraged by the strong operating performance at Punitaqui over the past six weeks. Our team in Chile has taken a disciplined approach to extraction, plant optimization and cost management that has delivered improving production and financial results. "Since Sept. 1, 2025, the project has averaged approximately 1,800 tonnes of production per day from the underground operations, an 80-per-cent increase compared to the first half of 2025. Over the last two weeks, we have achieved average production of approximately 2,000 tonnes per day. The strong performance of our underground mobile equipment has been instrumental in supporting production growth. In addition, our concentrate production has featured robust copper grades as high as 32 per cent alongside notable gold and silver byproduct credits. Punitaqui is currently positioned with approximately 50,000 tonnes of stockpiled inventory, a first for our business. Our Los Mantos concentrate facility has the capacity to process up to 3,500 tonnes per day. "We are also pleased to report that we are in the process of developing a third underground operation at Cinabrio Norte to complement those operations currently in production at Cinabrio and San Andres. In addition, we continue to progress work on our fourth underground operation, Dalmacia. We will update the shareholders on both projects in the near term. "I want to thank the operating team in Chile for working through numerous challenges to deliver a clear positive shift in the Punitaqui asset performance. We look forward to providing shareholders with additional favourable operating updates in the near term." Copper concentrate production and outlook During the period from Sept. 1 to Oct. 14, 2025, the company sold a total of 2,374 dry metric tonnes of copper concentrates. The concentrates averaged 25 per cent copper, amounting to approximately 1.8 million pounds of contained copper. The company's near-term goal at Punitaqui is 2,500 to 2,700 DMT of copper concentrates per month by the end of 2025, assuming favourable operating and metallurgical conditions. Its copper concentrate production targets for full-year 2025 and 2026 are 15,000 to 16,000 DMT and 28,000 to 30,000 DMT, respectively, assuming favourable operating and metallurgical conditions. Environmental and sustainability progress The Punitaqui plant has received its DIA (Declaracion de Impacto Ambiental or environmental impact declaration), and the company is actively advancing the procurement and construction of a filtered tailing facility. This infrastructure is being developed in line with Battery Mineral's approved permit to support future production and significantly reduce freshwater consumption, aligning operations with modern sustainability and environmental best practices. John Kiernan, PEng, a director of the company, is the company's qualified person as defined by National Instrument 43-101, and has reviewed and approved the technical contents of this news release. About Battery Mineral Resources Corp. Battery Mineral Resources' mission is to build a mid-tier copper producer. The company has recently initiated mine and mill operations at the Punitaqui mining complex, a historic copper-, gold- and silver-producing mine in the Coquimbo region of Chile. The company's portfolio also includes 100-per-cent-owned ESI Energy Services Inc. and North American mineral exploration assets. The company is focused on providing shareholders with accretive exposure to copper and the global megatrend of electrification while targeting growth through cash flow, exploration and acquisitions in favourable mining jurisdictions. We seek Safe Harbor.