Mr. Greg Reimer reports

SURGE BATTERY METALS REPORTS OPTIMIZATION OF FLOWSHEET PARAMETERS AND EXTRACTION SUCCESSES AT NEVADA NORTH

Surge Battery Metals Inc. has provided an update on the metallurgical testing program currently under way to support the prefeasibility study by Nevada North Lithium LLC, the joint venture formed by Surge and Evolution Mining Ltd., to develop the Nevada North lithium project.

Concurrently with the successful development of the upgraded mineral resource estimate (see news release dated May 14, 2026), NNL's technical team has advanced flow sheet optimization in collaboration with industry-leading metallurgical laboratories, including Kemetco Research Inc., Pocock Industrial Inc. and Sepro Mineral Systems Corp.

Utilizing a representative master composite sample, NNL has completed critical front-end beneficiation and preleach optimization and is initiating the next phase of testing designed to confirm target recovery rates and derisk solid-liquid separation.

Program highlights and coming milestones:

• Successful beneficiation: Beneficiation work -- recently conducted on both the master composite and variability samples -- with Sepro has yielded positive results, demonstrating that run-of-mine material can be effectively upgraded early in the flow sheet. Rejecting gangue material before leaching is a critical driver for reducing downstream capital and operating expenditures.
• Leach circuit optimization: Continuing testing at Kemetco has achieved lithium extraction rates exceeding 93 per cent under optimized leaching conditions. This favourable extraction rate reflects strong alignment with Fluor's flow sheet modelling. The overall recovery rate -- which incorporates downstream performance -- will be published in the forthcoming PFS report. By refining acid addition and residence times, the team is maximizing extraction while minimizing impurities. Scaled-up testing will conclude this month to generate slurry for downstream separation.
• Derisking solid-liquid separation: Solid-liquid separation of clay-rich lithium material is a technically challenging unit operation in the flow sheet due to fine particle size, clay rheology and material-handling requirements. Early testing has already produced a physically stable filter cake from beneficiated material. Next, Pocock will utilize Kemetco's scaled-up leach slurry to execute advanced thickening, filtration and washing studies, providing the empirical data required for PFS equipment selection.

Greg Reimer, president, chief executive officer and director of Surge, commented: "Following the success of our recent resource upgrade, the commercial viability of our flow sheet is our next priority. The beneficiation and preleach optimization work we have already executed has unlocked early-stage efficiencies. Now, with initial testing at Kemetco achieving lithium extractions above 93 per cent, our planned larger-scale program with Pocock will provide the data needed to correctly size and design our equipment."

Qualified person as defined under National Instrument 43-101

Alan J. Morris, MSc, CPG, of Spring Creek, Nev., geological adviser to the company, a qualified person as defined under National Instrument 43-101, has reviewed and approved the technical aspects of this news release.

About Surge Battery Metals Inc.

Surge Battery, a Canadian-based mineral exploration company, is at the forefront of securing the supply of domestic lithium through its active engagement in the Nevada North lithium project. The project focuses on development of high-grade lithium energy metals in Nevada, United States, a crucial element for powering battery electric storage and electric vehicles. With a primary listing on the TSX Venture Exchange in Canada and a listing on the OTCQX market in the United States, Surge Battery is strategically positioned as a key player in advancing lithium exploration.

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