NexMetals files NI 43-101 report on 2026 Selkirk mineral resource estimate

Vancouver, British Columbia--(Newsfile Corp. - August 7, 2026) - NexMetals Mining Corp. (TSXV: NEXM) (NASDAQ: NEXM) (the " Company " or " NEXM ") is pleased to announce that it has filed an independent National Instrument 43-101 - Standards of Disclosure for Mineral Projects (" NI 43-101 ") technical report supporting the 2026 Mineral Resource Estimate (the " 2026 MRE ") for its Selkirk Project in Botswana, originally announced on June 24, 2026 . Selkirk is a past-producing copper-nickel-platinum group elements (" PGEs ") project located approximately 75 kilometres northeast of the Company's flagship Selebi Project.

The 2026 MRE outlines an Indicated Mineral Resource of 78.2 million tonnes grading 0.66% copper equivalent (" CuEq "), containing approximately 1.1 billion pounds of copper equivalent, together with an Inferred Mineral Resource of 15.1 million tonnes grading 0.60% CuEq, containing approximately 200 million pounds of copper equivalent. The 2026 MRE increases the Selkirk Project's CuEq metal inventory by approximately 70% and reflects a significant conversion of Mineral Resources from the Inferred to Indicated category following a successful re-assaying and twin drilling campaign.

The technical report, entitled "NI 43-101 Technical Report - June 2026 Mineral Resource Estimate Selkirk Nickel-Copper-PGE Project, Botswana", was prepared by The MSA Group (Pty) Ltd. (" MSA ") with an effective date of June 22, 2026. The technical report has been filed under the Company's profile on SEDAR+ at www.sedarplus.ca , furnished under the Company's profile on EDGAR at www.sec.gov and is also available on the Company's website. The Company plans to file a related Regulation S-K 1300 compliant technical report on a Current Report on Form 8-K on EDGAR as soon as reasonably practicable. There are no material differences between the technical report and the Mineral Resource Estimate pre