Battery Mineral Resources Corp. Provides Update on the Punitaqui Copper Project

 CEO Commentary
Copper Concentrate Production and Outlook
Environmental & Sustainability Progress

Battery Mineral Resources Corp. (TSXV: BMR,OTC:BTRMF) (OTCQB: BTRMF) ("Battery" or "BMR" or the "Company") is pleased to update its shareholders on operational improvements at the Punitaqui Copper Project ("Punitaqui") in Chile.

Laz Nikeas, CEO of BMR, 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 September 1^st, 2025, the project has averaged approximately 1,800 tonnes of production per day from the underground operations, an 80% 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% 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 favorable operating updates in the near term."

Copper Concentrate Production and Outlook

During the period from September 1^st to October 14^th, 2025, the Company sold a total of 2,374 dry metric tonnes (DMT) of copper concentrates. The concentrates averaged 25% copper, amounting to approximately 1.8 million pounds of contained copper.

The Company's near-term goal at Punitaqui is 2,500-2,700 DMT of copper concentrates per month by the end of 2025, assuming favorable operating and metallurgical conditions. Our copper concentrate production targets for full year 2025 and 2026 are 15,000-16,000 DMT and 28,000-30,000 DMT, respectively, assuming favorable operating and metallurgical conditions.

Environmental & Sustainability Progress

The Punitaqui plant has received its DIA (Declaración 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 BMR's approved permit to support future production and significantly reduce freshwater consumption, aligning operations with modern sustainability and environmental best practices.

John Kiernan, P.Eng., a director of the Company, is the Company's Qualified Person (QP) 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%-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 mega-trend of electrification while targeting growth through cash flow, exploration, and acquisitions in favorable mining jurisdictions. Further information about BMR and its projects can be found on www.bmrcorp.com.

Neither the TSXV nor its Regulation Services Provider (as that term is defined in the policies of the TSXV) accepts responsibility for the adequacy or accuracy of this press release.

Forward-Looking Statements

This news release includes certain "forward-looking statements" under applicable Canadian securities legislation. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Forward-looking statements reflect the beliefs, opinions, and projections of the Company on the date the statements are made and are based upon a number of assumptions and estimates that, while considered reasonable by the Company, are inherently subject to significant business, economic, competitive, political, and social uncertainties and contingencies. Many factors, both known and unknown, could cause actual results, performance, or achievements to be materially different from the results, performance, or achievements that are or may be expressed or implied by such forward-looking statements, and the parties have made assumptions and estimates based on or related to many of these factors. Such factors include, without limitation, the ability of the Company to obtain sufficient financing to complete exploration and development activities; risks related to share price and market conditions; the inherent risks involved in the mining, exploration, and development of mineral properties; the inherent risks involved in the rental and sales of heavy equipment and machinery; the ability of the Company to meet its anticipated development schedule; government regulation; and fluctuating commodity prices. Accordingly, readers should not place undue reliance on forward-looking statements. Battery undertakes no obligation to update publicly or otherwise revise any forward-looking statements contained herein, whether as a result of new information or future events or otherwise, except as may be required by law.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/270685