NEXM

Phase II program soil survey results show that nickel-copper anomalies extend over multiple kilometres and are closely associated with mapped amphibolite host rocks similar to those at the nearby NexMetals Selebi Mine's Selebi Main deposit. Eastport's Selebi-East Project is located on the Selebi-Phikwe Belt which hosts multiple historic nickel-copper mines, and is approximately 7km east of the NexMetals Mining Corp's Selebi Mine project where recently reported drilling intersected an 11.5m interval of massive sulphide grading 7.65% CuEq (NexMetals, Drill hole SMD-26-212-W1, TSX-V: NEXM, NASDAQ: NEXM).1 Vancouver, British Columbia--(Newsfile Corp. - August 12, 2026) - Eastport Critical Metals Corp. (TSXV: EVI) (OTCQB: EVIIF) ("Eastport" or the "Company") is pleased to announce the positive initial results from the Phase II Geochemistry and Geophysical Exploration Program (the "Program") at the Selebi-East Project ("Selebi-East" or the "Project") which is prospective for nickel, copper and platinum group elements ("PGE"), in northeast Botswana. The Phase II program commencement was announced April 15, 2026 (link). The Program builds on existing geochemical soil anomalies and untested geophysical conductors within the same geological domain as the nearby Selebi Mine held by NexMetals Mining Corp. (see Figure 1 for Location Map). Daniel Major, Chief Executive Officer, commented; "The Phase II nickel and copper soil sample results, with their close correlation to the mapped trend of the amphibolite host rocks at the nearby NexMetals Selebi Mine, are very positive for the Selibi-East Project. Of particular note is the number and size of the anomalies which cover several kilometres of prospective strike length, and which warrant further detailed investigation. The next stage of exploration will focus on a targeted deep-penetrating geophysical survey to better define subsurface targets, with final drill collar locations to be selected following the receipt of the remaining soil sample results and completion of the geophysical programme. This is an exciting development for the Eastport team. The Selebi-Phikwe Belt hosts multiple known copper-nickel deposits, including the historic Selebi Mine just 7km from our prospecting licences, indicating that the mineralising system has already been repeated multiple times across the belt." Figure 1: Selebi-East Project Location Map, Showing Eastport Licence Areas To view an enhanced version of this graphic, please visit:https://images.newsfilecorp.com/files/8324/309270_3478539e64c85998_001full.jpg The NexMetals Selebi Mine is a past-producing underground copper, nickel, and cobalt operation. Amphibolite hosted mineralisation supported historical production of approximately 40.5Mt grading 0.64% Ni and 0.90% Cu between 1980 and 2016. The project currently hosts a mineral resource of approximately 28Mt grading at 0.93% Ni and 1.44% Cu with ongoing exploration drilling indicating the deposit remains open at depth.2 The Company cautions that whilst similar amphibolite rock units are understood to extend within the Selebi-East Project there can be no guarantee that the amphibolites will host mineralisation. The soil geochemical sampling method that has defined Eastport's multi-kilometre long nickel-copper soil anomalies is the same exploration technique used by Bamangwato Concessions Limited ("BCL") to discover the neighbouring Selebi Mine in 1963. BCL's geochemical soil sampling conducted in stages from 1959 to 1963, defined a clear 1.6km long nickel-copper anomaly sitting over the surface expression of the underlying amphibolite geology. That anomaly became a formal mineral discovery mid-1963, as subsequent drilling by BCL, targeting the anomaly, hit the sulphides hosted by the amphibolite. At the Selebi Mine, the weathering of near-surface mineralised amphibolite released nickel and copper into the residual soils, creating a coherent 1.6km geochemical anomaly that directly overlies the host rock, and which guided subsequent drilling to discover the sulphide mineralisation. Eastport's current geochemical results are interpreted to show a comparable spatial coincidence between elevated nickel-copper values in soil and the mapped amphibolite units within the same Selebi-Phikwe Belt (see Figures 2 to 5 below). Whilst soil anomalies alone do not confirm the presence of economic mineralisation at depth, the repeated association of this geochemical signature with amphibolite-hosted deposit across the belt increases the potential that similar mineralising systems may be present at the Selebi-East Project. Figure 2: Copper soil sampling results for licence area PL003 showing strong correlation between amphibolites (mafic/ultramafic rocks) and copper in soil sample grades. To view an enhanced version of this graphic, please visit:https://images.newsfilecorp.com/files/8324/309270_3478539e64c85998_002full.jpg Figure 3: Nickel soil sampling results for licence area PL003 showing strong correlation between amphibolites (mafic/ultramafic rocks) and nickel in soil sample grades. To view an enhanced version of this graphic, please visit:https://images.newsfilecorp.com/files/8324/309270_3478539e64c85998_003full.jpg Figure 4: Copper soil sample anomalies correlating well with amphibolites in licence area PL004. To view an enhanced version of this graphic, please visit:https://images.newsfilecorp.com/files/8324/309270_3478539e64c85998_004full.jpg Figure 5: Nickel soil sample anomalies correlating well with amphibolites in licence area PL004. To view an enhanced version of this graphic, please visit:https://images.newsfilecorp.com/files/8324/309270_3478539e64c85998_005full.jpg The Selebi-East Project, located only seven kilometres from the Selebi Mine, comprises five prospecting licenses where historical exploration has identified potential nickel-copper mineralisation. The Phase II Exploration Program (see Figure 1) included: Geochemical soil sampling grid expansion to infill and extend coverage of targets over multiple prospective amphibolite units with known nickel-copper responses. Electromagnetic and gravity geophysics to test priority soil anomalies and define potential sulphide targets for future drilling. The Phase II soil sampling results were collected within prospecting licence areas PL001, PL003 and PL2183. Results within PL003 show a strong correlation between the mapped amphibolites and nickel and copper grades reported, with similar results to previous soil surveys completed by the Company in 2023/24 on PL002 and PL004. The results for PL2183 are pending and will be reported once they have been received and interpreted. Soil sampling on PL001 reported limited Ni-Cu anomalies, however they are not believed to be conclusive and are interpreted to have migrated from streams, and may not be in-situ. Two electromagnetic geophysical survey test lines were completed over two grid areas (PL002 and PL004). The geophysical survey results are currently inconclusive as the survey may not have penetrated deep enough, due to the available cable length. The Company is preparing to use a different deeper seeking electromagnetic technique (time-domain electromagnetic (TDEM) survey) on the same test lines. Qualified Person The technical information in this news release has been reviewed and approved by Nicholas O'Reilly MIMMM (QMR) MAusIMM MSc DIC, an independent consultant and Qualified Person under National Instrument 43-101 - Standards of Disclosure for Mineral Projects. About Eastport Critical Metals Corp. (TSXV: EVI) (OTCQB: EVIIF) Eastport is a critical minerals development company advancing five projects in Botswana, with cumulative historical and current expenditures approaching CAD$20 million. The Company's most advanced asset is the Matsitama Copper Project, which hosts multiple sizeable targets across the Matsitama copper district. The Company's additional projects include Selebi East, a nickel-copper-cobalt project located seven kilometres east of the historic Selebi Mines; the Semarule Rare Earth Elements Project, positioned within the Gaborone-Molepolole corridor; the Foley Uranium Project, adjoining the Letlhakane uranium deposit; and the Keng Project, which targets nickel, copper and PGEs on the northern margin of the Molopo Farms Complex. Botswana is widely regarded as one of Africa's strongest mining jurisdictions, combining the continent's highest GDP per capita with a 50-year track record of large-scale mineral development since the Orapa diamond discovery in 1967. The country ranks among the top performers globally on the Fraser Institute's Investment Attractiveness Index and is the highest-rated jurisdiction in Africa on the Policy Perception Index. These rankings reflect Botswana's stable regulatory environment, consistent rule of law, and long-standing support for responsible mineral development - factors that have underpinned significant investment and major M&A activity in the natural resources sector in recent years. On behalf of the Board of Directors"Daniel Major"Daniel Major, Chief Executive OfficerEastport Critical Metals Corp. For further information about Eastport, please contact: Daniel Major, Chief Executive [email protected] Disclaimer for Forward-Looking Information This news release includes certain statements and information that may constitute forward-looking information within the meaning of applicable Canadian securities laws. Forward-looking statements relate to future events or future performance and reflect the expectations or beliefs of management of the Company regarding future events. Generally, forward-looking statements and information can be identified by the use of forward-looking terminology such as "intends" or "anticipates", or variations of such words and phrases or statements that certain actions, events or results "may", "could", "should", "would" or "occur". This information and these statements, referred to herein as "forward‐looking statements", are not historical facts, are made as of the date of this news release and include without limitation, statements regarding discussions of future plans, estimates and forecasts and statements as to management's expectations and intentions with respect to, among other things: the intended use of proceeds raised under the Offering; the Company delivering value to its shareholders through its critical metal's portfolio; the Company's exploration and development programs; the advancement of multi-asset drill campaigns across key critical metals and the timing thereof; and the receipt of final approval of the Offering from the TSXV. These forward‐looking statements involve numerous risks and uncertainties and actual results might differ materially from results suggested in any forward-looking statements. These risks and uncertainties include, among other things: delays in obtaining or failure to obtain final approval from the TSXV for the Offering; fluctuations in commodity prices for critical metals, including copper, uranium and rare earth elements; the Company's ability to successfully execute its exploration and development programs; risks inherent in mineral exploration activities; the Company's ability to meet anticipated timelines for its multi-asset drill campaigns; operational risks and technical challenges associated with exploration activities in Botswana; and changes in the Company's business plans impacting the intended use of proceeds raised under the Offering. In making the forward looking statements in this news release, the Company has applied several material assumptions, including without limitation, that: the Company will obtain the required regulatory approvals for the Offering; the Company's exploration and development programs will proceed as planned; commodity prices for critical metals will remain at levels sufficient to support continued exploration activities; the Company will continue to have access to the necessary permits, equipment and qualified personnel to conduct its exploration programs; the Company's critical metals portfolio will continue to present viable opportunities for value creation; and the Company will use the proceeds of the Offering as currently anticipated. Although management of the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements or forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements and forward-looking information. Readers are cautioned that reliance on such information may not be appropriate for other purposes. The Company does not undertake to update any forward-looking statement, forward-looking information or financial outlook that are incorporated by reference herein, except in accordance with applicable securities laws. 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 news release. 1 Reported July 22, 2026 see https://nexmetalsmining.com/investors/news-releases/nexmetals-reports-11-15-metres-of-7-65-cueq-3-10-cu-2-21-ni-at-selebi-main-highlighting-a-kilometre-scale-trend-of-thick-high-grade-massive-sulphides/2 Source: https://nexmetalsmining.com/selebi-mine/ To view the source version of this press release, please visit https://www.newsfilecorp.com/release/309270

Vancouver, British Columbia--(Newsfile Corp. - June 4, 2026) - NexMetals Mining Corp. (TSXV: NEXM) (NASDAQ: NEXM) (the "Company" or "NEXM") is pleased to announce the full concentrate analytical results from its two-concentrate metallurgical test program at the past-producing Selkirk Mine in Botswana. Selkirk is the Company's second advanced-staged project alongside Selebi Mine, located approximately 75km away. The first set of results were announced in a news release dated April 27, 2026, with full analytical assays now confirming the potential to produce clean, high-grade, commercially saleable copper and nickel concentrates with low levels of deleterious elements that meet commercial smelter specifications. Highlights: Commercial Smelter Specifications Confirmed: Final assays confirm both concentrates meet industry-standard smelter acceptance criteria, establishing a clear pathway to commercial sales. Clean Concentrate Profile: Both the copper and nickel concentrates show very low levels of all deleterious elements, including main determinants such as arsenic, cadmium, mercury, fluorine, lead, zinc, and bismuth, and all of which are below industry-standard penalty thresholds. This clean profile is highly compelling and could enhance marketability and offtake terms. Potential Low-Capital Restart Pathway: Results support the potential restart of Selkirk without the need for an on-site smelter or hydrometallurgical facility, potentially reducing capital intensity and execution risk. Potential Environmental Advantage: The clean concentrate profile and conventional flotation flowsheet may contribute to a lower environmental footprint relative to historical operations. Next Steps: Complete additional flowsheet development testwork to further improve recoveries and concentrate quality. Integrate metallurgical and recent assay results into the New Mineral Resource Estimate (the "New MRE"), expected in Q2 2026. Sean Whiteford, CEO of the Company, commented: "These final analytical results represent another important milestone for Selkirk and confirm our ability to produce separate, high-grade copper and nickel concentrates with payable platinum and palladium that meet commercial smelter specifications. Importantly, both concentrates exhibit very low levels of deleterious elements, while also containing cobalt, silver, and gold that are expected to be payable. We believe these results further de-risk the project, enhance the marketability of Selkirk's concentrates, and reinforce Selkirk as a strategic and underappreciated asset within NexMetals' portfolio. With the New MRE expected in the coming weeks, these results continue to demonstrate that Selkirk represents a more advanced asset with multiple potential pathways to unlocking shareholder value." Technical Details Approximately 700 kg of fresh diamond drill core was collected from the Selkirk mineralized zone in 2025. Selected samples were blended to create a master composite representative of grades anticipated in the early years of a conceptual mine plan. This composite formed the basis for metallurgical testwork. The resulting feed grade averaged 0.26% Cu, 0.24% Ni, 0.09 g/t Pt, 0.42 g/t Pd, 0.04 g/t Au, 1.26 g/t Ag and 0.01% Co. Metallurgical testwork was conducted by Blue Coast Research of Parksville, British Columbia, to evaluate processing performance of the Selkirk material. Results demonstrate that a conventional sequential flotation flowsheet can effectively generate separate, high-quality copper and nickel concentrates, while maintaining target concentrate grades and achieving strong overall metal recoveries (see news release dated April 27, 2026). A Locked Cycle Test (LCT) is an industry-standard bench-scale test designed to simulate the steady-state conditions of a continuous flotation circuit by recycling intermediate streams back through the process in successive stages. Analyses of the two concentrates are given in Table 1. For brevity, only the analyses of potentially payable metals and deleterious elements are listed. Deleterious elements that can attract penalties in copper concentrate include arsenic, antimony, bismuth, lead + zinc, mercury, nickel + cobalt, fluorine + chlorine, cadmium, selenium + tellurium and insolubles (SiO2, Al2O3, MgO etc.). Deleterious elements in nickel concentrate include arsenic, lead, mercury, zinc, chlorine + fluorine and magnesia (MgO). For both the copper and nickel concentrates, all deleterious elements are well below the lower limits. Table 1. LCT -2 Copper and Nickel Concentrate Quality Assessment Quality Control The Selkirk metallurgical drill program was completed by Discovery Drilling using a Boyles 56 machine. Drill core samples are HQ (63.5 mm diameter) that were sawn in half with one half sawn in half again to produce quartered core. Quarter core samples were submitted to ALS Chemex in Johannesburg, South Africa for analyses. Selected portions of the remaining core were sent to Blue Coast Research for metallurgical flotation studies with the reminder retained for reference purposes. The geochemical analyses of the copper and nickel concentrates were performed at Activation Laboratories Ltd. ("Actlabs") in Ancaster, Ontario, Canada and Blue Coast Research using a combination of four acid digestion analyzed by ICP-OES (4AD-ICP), lithium borate fusion analyzed by XRF (FUS-XRF) or ICP-OES (FUS-ICP). Platinum Group Metals were analyzed using standard fire assay to either ICP-OES or ICP-MS, Hg was done by Cold Vapour FIMS, Cl was conducted using INAA, and F was done by Lithium Borate Fusion with Ion Selective Electrode. Blue Coast Research and Actlabs are independent laboratories accredited by the Standards Council of Canada to the requirements of ISO/IEC 17025 for specific tests as listed on their scope of accreditation, including geochemical, mineralogical, and trade mineral tests. Qualified Persons All scientific and technical information in this news release has been reviewed and approved by Renee Goold, P. Eng. of Fuse Advisors and Sharon Taylor, VP Geophysics of the Company, MSc, P.Geo, and a "qualified person" for the purposes of National Instrument 43-101 and Subpart 1300 of Regulation S-K. Sharon Taylor has verified the data collection disclosed in this news release, including the sampling, analytical and test data underlying the disclosure, through multiple visits to drill sites and sample preparation facilities, assessment and oversight of sample preparation protocols, and review of the QA/QC procedures applied to analytical results received from ALS Chemex. No limitations or failures to verify were identified that could materially affect the results. Renee Goold has verified the metallurgical results through multiple visits to Blue Coast Research and oversight of the test sample preparation and test protocols. Technical Report The 2024 MRE on the Selkirk Mine is supported by the Technical Reports entitled "NI 43-101 Technical Report Selkirk Nickel Project, North East District, Republic of Botswana", dated January 8, 2025 (with an effective date of November 1, 2024 (the "2025 Technical Report")), and "NI 43-101 Technical Report, Selkirk Nickel Project, Northeast District, Republic of Botswana" dated April 12, 2023 (with an effective date of March 31, 2023 (the "2023 Technical Report", and together with the 2025 Technical Report, the "Technical Reports")) and the Technical Report Summary entitled "S-K 1300 Technical Report Summary, Selkirk Nickel Project, North East District, Republic of Botswana", dated January 8, 2025 (with an effective date of November 1, 2024 (the "Technical Report Summary")). Reference should be made to the full text of the Technical Reports for the assumptions, qualifications and limitations set forth therein, which were prepared in accordance with NI 43-101 and copies of which are available on SEDAR+ (www.sedarplus.ca), and the Technical Report Summary, which was prepared in accordance with Subpart 1300 of Regulation S-K and is available in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2025 filed with the U.S. Securities and Exchange Commission (the "SEC") on EDGAR (www.sec.gov), in each case, under the Company's issuer profile. About NexMetals Mining Corp. NexMetals Mining Corp. is a TSX.V and NASDAQ listed mineral exploration and development company focused on redeveloping the past-producing Selebi and Selkirk copper-nickel-cobalt-platinum group element mines in Botswana. NexMetals has confirmed the scale of mineralization is larger than historical estimates, supported by NI 43-101- and Regulation S-K 1300-compliant resource estimates, with ongoing down-hole geophysics, drilling, and metallurgical programs aimed at expanding resources and supporting future economic studies. The Company is led by an experienced management and technical team with a proven track record in global mineral projects, emphasizing disciplined execution, transparent governance, and long-term stakeholder value creation. For further information about NexMetals Mining Corp., please contact: Sean WhitefordCEO [email protected] (6396) Follow Us X: https://x.com/NexMetalsCorp LinkedIn: https://www.linkedin.com/company/NexMetalsMiningCorp Facebook: https://www.facebook.com/NexMetalsMiningCorp Neither the TSX Venture Exchange and its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) nor the Nasdaq Stock Market LLC accepts responsibility for the adequacy or accuracy of this news release. No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein. Cautionary Note Regarding Forward-Looking Statements This news release contains "forward-looking statements" within the meaning of the United States federal securities laws and "forward-looking information" within the meaning of applicable Canadian securities legislation (collectively, "forward-looking information") based on expectations, estimates and projections as at the date of this news release. Forward-looking information involves risks, uncertainties and other factors that could cause actual events, results, performance, prospects and opportunities to differ materially from those expressed or implied by such forward-looking information. For the purposes of this release, forward-looking information includes, but is not limited to, the potential to produce clean, high-grade, commercially saleable copper and nickel-cobalt concentrates with low levels of deleterious elements that meet commercial smelter specifications and could enhance marketability and offtake terms; the potential to restart Selkirk without the need for an on-site smelter or hydrometallurgical facility and potentially reducing capital intensity and execution risk; the clean concentrate profile and conventional flotation flowsheet potentially contributing to a lower environmental footprint relative to historical operations; the Company's plan to complete additional flowsheet development testwork to further improve recoveries and concentrate quality; the Company's plan to integrate metallurgical and recent assay results into the New MRE which is expected in Q2 2026; the high-grade copper and nickel concentrates containing potentially payable cobalt, silver, and gold; and Selkirk representing a more advanced asset with multiple potential pathways to unlocking shareholder value. These forward-looking statements, by their nature, require the Company to make certain assumptions and necessarily involve known and unknown risks and uncertainties that could cause actual results to differ materially from those expressed or implied in these forward-looking statements. Factors that could cause actual results to differ materially from such forward-looking information include, but are not limited to, capital and operating costs varying significantly from estimates; the preliminary nature of drilling and metallurgical test results; payabilities of metals varying from expectations; the ability of exploration results to predict mineralization; the risk that the Company will not be able to expand or enhance its current mineral resource estimates; the ability of the Company to implement its drilling, geoscience and metallurgical work on its properties and work plans generally; prefeasibility or the feasibility of mine production; the feasibility of anticipated commercial options regarding Selkirk such as potential partnerships or a spin-out; delays in obtaining or failures to obtain required governmental, environmental or other project approvals; uncertainties relating to the availability and costs of financing needed in the future; changes in equity markets; inflation; fluctuations in commodity prices; delays in the development of projects; the other risks involved in the mineral exploration and development industry; and those risks set out in the Company's filings with the SEC on EDGAR (www.sec.gov) and public disclosure record on SEDAR+ (www.sedarplus.ca), in each case, under the Company's issuer profile. Although the Company believes that the assumptions and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not be placed on such information, which only applies as of the date of this news release, and no assurance can be given that such events will occur in the disclosed time frames or at all. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, other than as required by law. To view the source version of this press release, please visit https://www.newsfilecorp.com/release/300070

Vancouver, British Columbia--(Newsfile Corp. - May 27, 2026) - NexMetals Mining Corp. (TSXV: NEXM) (NASDAQ: NEXM) (the "Company" or "NEXM") is pleased to announce the results of its 2026 Annual General Meeting of Shareholders (the "Meeting") held earlier today. All proposed resolutions, set out in the Company's notice of meeting and management information circular dated April 23, 2026, were approved. Shareholders elected Paul Martin (Chairman), Mark Christensen, Jason LeBlanc, Keith Marshall, Warwick Morley-Jepson, André van Niekerk, Philipa Varris and Sean Whiteford to the board of directors, each to hold office until the next annual meeting of shareholders or until their successors are duly elected or appointed. Shareholders further approved the re-appointment of MNP LLP as the Company's auditors for the ensuing year and approved the Company's Omnibus Equity Incentive Plan (the "Plan"). Additional voting details will be provided in a Report of Voting Results to be filed by the Company on SEDAR+. Following the Meeting, an aggregate of 153,100 deferred share units ("DSUs") were granted to directors of the Company effective May 27, 2026 pursuant to the Plan. The DSUs have been granted at a deemed price of $4.55 per DSU, representing the 90-Day volume weighted average price of the Company's shares on the TSX Venture Exchange as of May 21, 2026. Of the total DSUs granted, 41,000 DSUs were granted in respect of director services provided from January 1, 2026 to May 27, 2026, with the remaining 112,100 DSUs granted in respect of director compensation for the 2026-2027 term commencing following the Meeting. About NexMetals Mining Corp. NexMetals Mining Corp. is a TSX.V and NASDAQ listed mineral exploration and development company focused on redeveloping the past-producing Selebi and Selkirk copper-nickel-cobalt-platinum group element mines in Botswana. NexMetals has confirmed the scale of mineralization is larger than historical estimates, supported by NI 43-101- and Regulation S-K 1300-compliant resource estimates, with ongoing down-hole geophysics, drilling, and metallurgical programs aimed at expanding resources and supporting future economic studies. The Company is led by an experienced management and technical team with a proven track record in global mineral projects, emphasizing disciplined execution, transparent governance, and long-term stakeholder value creation. For further information about NexMetals Mining Corp., please contact: Sean Whiteford, [email protected] (6396) Follow Us X: https://x.com/NexMetalsCorp LinkedIn: https://www.linkedin.com/company/NexMetalsMiningCorp Facebook: https://www.facebook.com/NexMetalsMiningCorp Neither the TSX Venture Exchange and its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) nor the Nasdaq Stock Market LLC accepts responsibility for the adequacy or accuracy of this news release. No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein. To view the source version of this press release, please visit https://www.newsfilecorp.com/release/299142

Vancouver, British Columbia--(Newsfile Corp. - April 27, 2026) - NexMetals Mining Corp. (TSXV: NEXM) (NASDAQ: NEXM) (the "Company" or "NEXM") is pleased to provide an update on ongoing metallurgical work at its Selkirk Project ("Selkirk") in Botswana. Selkirk is a past-producing, advanced-stage nickel-copper-platinum group elements ("PGEs") project supported by multiple historical economic studies for open pit extraction. Highlights, What This Means: Validated Processing Pathway: Initial Locked Cycle Tests ("LCT") results using large diameter core from the 2025 drill program confirm the ability to produce separate copper and nickel concentrates, supporting a viable alternative to historical bulk concentrate production. Strong Metallurgical Results: Copper concentrate achieved 81% recovery at a high 30.2% Cu grade with minimal Ni content (0.62%), while nickel concentrate delivered 10.9% Ni at 54.4% recovery. When compared to the concentrate parameters used in the 2024 Mineral Resource Estimate (the "2024 MRE"): Copper recovery in copper concentrate increased 16%, from 70.0% to 81.3% Copper losses to tailings cut by 56%, from 26.2% to 11.4% Nickel concentrate grade jumped 60%, from 6.8% to 10.9% Copper concentrate grade held firm at ~30% Gold, Silver and Cobalt are expected to be payable in the Copper and Nickel concentrates respectively Unlocking Additional Value: PGEs, along with gold, cobalt and silver, which were not comprehensively assayed historically, are now being evaluated, with silver and cobalt being assessed for the first time. These additional metals have the potential to provide meaningful incremental upside to overall project economics. Advancing Toward the Updated MRE (the "New MRE"): With recent re-sampling complete (see news release dated March 19, 2026), the New MRE for Selkirk, which will include the LCT results, is underway with completion expected in Q2 2026. Next Steps Complete additional flowsheet development testwork to further improve recoveries and concentrate quality Integrate metallurgical and re-assay results into the New MRE Sean Whiteford, CEO of the Company, commented: "Selkirk is an advanced, past-producing asset that we believe remains underappreciated, and hence undervalued, in today's market. These metallurgical results announced today mark a major step toward unlocking that value. We are seeing strong step-changes across key metrics compared to the 2024 MRE: copper recovery has increased to over 81%, nickel concentrate grade has increased to 10.9%, and total palladium recovery has increased to 78% from 59%. At the same time, copper losses to tailings have been cut by more than half, highlighting the efficiency of the process. Beyond the core metals, this work is also uncovering additional value from metals that were not comprehensively assayed in historical datasets, including PGEs, cobalt and silver which have the potential to provide meaningful incremental upside to overall project economics. Combined with strong resource continuity and expansion potential, we believe Selkirk is increasingly emerging as a compelling development opportunity, all in the context of rising commodity prices. Upon completion of the New MRE, the Company expects to be positioned to evaluate a range of commercial options for Selkirk, which could include options such as potential partnerships, a spin-out, or advancement toward an economic study, building on ongoing value creation and defining a clear pathway to realizing full value for shareholders." Results of the Selkirk LCT are summarized in Table 1 below. Table 1: 2026 LCT Metallurgical Results - Blue Coast Research with Large Diameter HQ Core *Payabilities based on industry standards Table 2: 2024 MRE Inputs Prior to the acquisition of Selkirk, concept level metallurgical studies were completed to confirm that saleable concentrates could be produced (see news release dated August 24, 2022). This was a necessary step because previous economic studies were designed to produce a low-grade bulk concentrate and use the BCL smelter in Selebi Phikwe for beneficiation. Additional work was completed in 2023, with these later results used in the 2024 MRE (see the 2025 Technical Report and Table 2). This new phase of flotation testwork at BCR Laboratories, using HQ (63.5 mm diameter) drill core from the 2025 program, has built on these results (see Table 1). A Locked Cycle Test (LCT) is an industry-standard bench-scale test designed to simulate the steady-state conditions of a continuous flotation circuit by recycling intermediate streams - such as cleaner tailings and middlings — back through the process in successive stages. Initial LCT results from recent flotation work confirm the ability to produce separate copper and nickel concentrates, representing a key step in establishing a revised flowsheet and further de-risking Selkirk as it advances toward a potentially accelerated path to production. Additional PGEs are now being included in the deposit model with the resampling of 17 holes in 2024 and 34 holes in 2025. Technical Details Approximately 700 kg of fresh diamond drill core was collected from the Selkirk mineralized zone. Sampling targeted a range of nickel tenors and provided broad spatial representation across the deposit. Three tenor-based samples were subsequently blended to produce a master composite representative of grades anticipated in the early years of a preliminary mine plan. This composite formed the basis for metallurgical testwork. The resulting feed grade averaged 0.26% Cu, 0.24% Ni, 0.08 g/t Pt, 0.39 g/t Pd, 0.04 g/t Au, 1.26 g/t Ag and 0.01% Co. Metallurgical testwork was conducted by Blue Coast Research of Parksville, British Columbia, to evaluate processing performance of the Selkirk material. Results demonstrate that a conventional sequential flotation flowsheet can effectively generate separate, high-quality copper and nickel concentrates, while maintaining target concentrate grades and achieving strong overall metal recoveries. At a primary grind size of 91 µm P80, followed by copper regrinding to 14 µm P80 and three stages of cleaning, a copper concentrate grading 30.2% Cu was produced, with payable precious metal credits of 1.91 g/t Pt, 36.2 g/t Pd, 3.0 g/t Au and 78.7 g/t Ag. Recoveries to the copper concentrate were 81.3% Cu, 15% Pt, 60.1% Pd, 53.1% Au and 43.5% Ag. Nickel misplacement to the copper concentrate remained low at 0.62% Ni. The downstream nickel circuit, incorporating regrinding to 31 µm P80 and three stages of cleaning, produced a nickel concentrate grading 10.9% Ni, with associated grades of 3.05 g/t Pt and 6.26 g/t Pd, 18.6 g/t Ag and 0.61% Co. Recoveries to the nickel concentrate were 54.5% Ni, 41.3% Pt, 18.0% Pd, 17.7% Ag and 53.2% Co. Next steps include obtaining full concentrate specifications to confirm product quality and assess the presence of any deleterious elements. In addition, mineralogical investigations will be carried out on the nickel cleaner 1 and rougher tailings to better define nickel deportment and liberation characteristics. These results will inform targeted flotation optimization strategies aimed at improving overall nickel recovery. The current test program is considered appropriate to support a future Preliminary Economic Study. Further optimization and variability testing are planned to refine process parameters, inform mine sequencing, and support evaluation of a potential project restart. Re-Assaying and Resource Upside In parallel, the Company completed its re-assaying and resampling program, the results of which were announced in a press release dated March 19, 2026, which confirmed strong grade continuity across the Selkirk system and identified areas of potential resource expansion. These results, together with the ongoing metallurgical program, are expected to support the New to the MRE for Selkirk and further strengthen the development case for Selkirk. Qualified Person All scientific and technical information in this news release has been reviewed and approved by Renee Goold, P. Eng. of Fuse Advisors and Sharon Taylor, VP Geophysics of the Company, MSc, P.Geo, and a "qualified person" for the purposes of National Instrument 43-101 and Subpart 1300 of Regulation S-K. Sharon Taylor has verified the data collection disclosed in this news release, including the sampling, analytical and test data underlying the disclosure, through multiple visits to drill sites and sample preparation facilities, assessment and oversight of sample preparation protocols, and review of the QA/QC procedures applied to analytical results received from ALS Chemex. No limitations or failures to verify were identified that could materially affect the results. Renee Goold has verified the metallurgical results through multiple visits to Blue Coast Research and oversight of the test sample preparation and test protocols. Technical Report The 2024 MRE on the Selkirk Mine is supported by the Technical Reports entitled "NI 43-101 Technical Report Selkirk Nickel Project, North East District, Republic of Botswana", dated January 8, 2025 (with an effective date of November 1, 2024 (the "2025 Technical Report")), and "NI 43-101 Technical Report, Selkirk Nickel Project, Northeast District, Republic of Botswana" dated April 12, 2023 (with an effective date of March 31, 2023 (the "2023 Technical Report", and together with the 2025 Technical Report, the "Technical Reports")) and the Technical Report Summary entitled "S-K 1300 Technical Report Summary, Selkirk Nickel Project, North East District, Republic of Botswana", dated January 8, 2025 (with an effective date of November 1, 2024 (the "Technical Report Summary")). Reference should be made to the full text of the Technical Reports for the assumptions, qualifications and limitations set forth therein, which were prepared in accordance with NI 43-101 and copies of which are available on SEDAR+ (www.sedarplus.ca), and the Technical Report Summary, which was prepared in accordance with Subpart 1300 of Regulation S-K and is available in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2025 filed with the U.S. Securities and Exchange Commission (the "SEC") on EDGAR (www.sec.gov), in each case, under the Company's issuer profile. Quality Control The Selkirk metallurgical drill program was completed by Discovery Drilling using a Boyles 56 machine. Drill core samples are HQ (63.5 mm diameter) that were sawn in half with one half sawn in half again to produce quartered core. Selected portions of the remaining core were sent to Blue Coast Research for metallurgical flotation studies with the reminder retained for reference purposes. The quartered core samples submitted to the lab were generally 1 metre in length. Sample preparation and lab analysis was completed at ALS Chemex in Johannesburg, South Africa. Commercially prepared blank samples and certified Cu/Ni sulphide analytical control standards with a range of grades are inserted in every batch of 20 samples or a minimum of one set per sample batch. Analyses for Ni, Cu and Co are completed using a peroxide fusion preparation and ICP-AES finish (ME-ICP81). Analyses for Pt, Pd, and Au are by fire assay (30 grams nominal sample weight) with an ICP-AES finish (PGM-ICP23). Blue Coast Research and SGS Minerals Lakefield are accredited to the requirements of ISO/IEC 17025 for specific tests as listed on their scope of accreditation, including geochemical, mineralogical, and trade mineral tests. About NexMetals Mining Corp. NexMetals Mining Corp. is a TSX.V and NASDAQ listed mineral exploration and development company focused on redeveloping the past-producing Selebi and Selkirk copper-nickel-cobalt-platinum group element mines in Botswana. NexMetals has confirmed the scale of mineralization is larger than historical estimates, supported by NI 43-101- and Regulation S-K 1300-compliant resource estimates, with ongoing down-hole geophysics, drilling, and metallurgical programs aimed at expanding resources and supporting future economic studies. The Company is led by an experienced management and technical team with a proven track record in global mineral projects, emphasizing disciplined execution, transparent governance, and long-term stakeholder value creation. For further information about NexMetals Mining Corp., please contact: Sean Whiteford CEO [email protected] 1-866-NEXM (6396) Follow Us X: https://x.com/NexMetalsCorp LinkedIn: https://www.linkedin.com/company/NexMetalsMiningCorp Facebook: https://www.facebook.com/NexMetalsMiningCorp Neither the TSX Venture Exchange and its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) nor the Nasdaq Stock Market LLC accepts responsibility for the adequacy or accuracy of this news release. No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein. Cautionary Note Regarding Forward-Looking Statements This news release contains "forward-looking statements" within the meaning of the United States federal securities laws and "forward-looking information" within the meaning of applicable Canadian securities legislation (collectively, "forward-looking information") based on expectations, estimates and projections as at the date of this news release. Forward-looking information involves risks, uncertainties and other factors that could cause actual events, results, performance, prospects and opportunities to differ materially from those expressed or implied by such forward-looking information. For the purposes of this release, forward-looking information includes, but is not limited to, the implementation of the objectives, goals and future plans of the Company including the potential overall project economics for Selkirk and its emergence as a compelling development opportunity; the potential of expanding the mineral resource at Selkirk; the anticipated release of the New MRE in Q2 2026; the expected ability to produce separate copper and nickel concentrates supporting a viable alternative to historical bulk concentrate production; the expected payability of silver and cobalt in copper and nickel concentrates, respectively; the potential of PGES, gold, cobalt and silver to provide meaningful incremental upside to overall project economics; the timing and completion of additional flowsheet development testwork to further improve recoveries and concentrate quality; the potential for a potentially accelerated path to production through a revised flowsheet; the potential commercial options available to the Company regarding Selkirk, including potential partnerships, a spin-out, or advancement toward an economic study. These forward-looking statements, by their nature, require the Company to make certain assumptions and necessarily involve known and unknown risks and uncertainties that could cause actual results to differ materially from those expressed or implied in these forward-looking statements. Factors that could cause actual results to differ materially from such forward-looking information include, but are not limited to, capital and operating costs varying significantly from estimates; the preliminary nature of drilling and metallurgical test results; payabilities of metals varying from expectations; the ability of exploration results to predict mineralization; the risk that the Company will not be able to expand or enhance its current mineral resource estimates; the ability of the Company to implement its drilling, geoscience and metallurgical work on its properties and work plans generally; prefeasibility or the feasibility of mine production; the feasibility of anticipated commercial options regarding Selkirk such as potential partnerships or a spin-out; delays in obtaining or failures to obtain required governmental, environmental or other project approvals; uncertainties relating to the availability and costs of financing needed in the future; changes in equity markets; inflation; fluctuations in commodity prices; delays in the development of projects; the other risks involved in the mineral exploration and development industry; and those risks set out in the Company's filings with the SEC and Exchange Commission on EDGAR (www.sec.gov) and public disclosure record on SEDAR+ (www.sedarplus.ca), in each case, under the Company's issuer profile. Although the Company believes that the assumptions and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not be placed on such information, which only applies as of the date of this news release, and no assurance can be given that such events will occur in the disclosed time frames or at all. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, other than as required by law. To view the source version of this press release, please visit https://www.newsfilecorp.com/release/294323

Vancouver, British Columbia--(Newsfile Corp. - April 1, 2026) - NexMetals Mining Corp. (TSXV: NEXM) (NASDAQ: NEXM) (the "Company" or "NEXM") is pleased to report assay results from the final three drill holes of its completed 2025 Selebi North Underground ("SNUG") deposit drilling program (see Figures 1 and 2). The program, which comprised of 9,656 metres in 11 completed holes and 6 abandoned holes, was designed to support resource expansion specifically, the down plunge and strike continuity of mineralization in the South Limb and down plunge extent of N3 (see Figure 1). The program has been successfully completed, with results confirming the continuity of high-grade mineralization along key target zones. Highlights SNUG-25-197: 18.80 metres of 4.69% CuEq (2.10% Cu, 1.26% Ni) including: 6.45 metres of 5.67% CuEq (2.25% Cu, 1.66% Ni) Drilling continues to reinforce confidence in the scale and continuity of the SNUG deposit, with recent step-out results complementing previously reported thick, continuous high-grade intervals, supporting the potential to rapidly add tonnage to the updated Mineral Resource Estimate ("MRE"). The 2025 SNUG drilling program extended the footprint of the South Limb mineralization approximately 315 metres down-plunge beyond the 2024 MRE, expanding South Limb by roughly 35% (see news release dated August 13, 2025). Deepest holes indicate improving copper grades down-plunge. Next Steps The surface drilling program is continuing at the Selebi Main Deposit, with four rigs targeting the emerging Flexure Zone, where recent results indicate thick intervals of massive sulphide mineralization. Incorporation of 2023-2025 Selebi North and 2026 Selebi Main drill holes into an updated MRE that incorporates the updated metallurgical test work results. Sean Whiteford, CEO of the Company, commented: "The 2025 Selebi North underground program has been highly successful, with these results demonstrating the continuity and scale that remain at the deposit, particularly along the down-plunge extension of the South Limb. Drilling is also confirming increasing copper grades at depth, with high-grade intervals consistently encountered within broader mineralized zones. At the same time, ongoing drilling at Selebi Main is consistently intersecting thick intervals of mineralization, reinforcing that the system remains open and continues to grow. Together, these results provide increased confidence in the overall scale of the Selebi system and will be key inputs into our updated MRE and PEA." Figure 1: Location of 2025 drill holes relative to the 2024 MRE and underground infrastructure. To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/7759/290762_79163a0cc4ebf8c3_002full.jpg Figure 2: Selebi North and Selebi Main deposits showing the 2024 MRE, with 2025 underground drilling at Selebi North expanding mineralization along the South Limb and ongoing surface drilling at Selebi Main targeting the emerging Flexure Zone. To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/7759/290762_79163a0cc4ebf8c3_003full.jpg Assay results for the three final holes are reported below in Table 1 and drill hole collar details are provided in Table 2. SNUG-25-197 and SNUG-25-199 were step-out holes to test South Limb mineralization continuity down dip and along strike, and this drilling was required for the updated MRE. Both holes intersected South Limb mineralization outside the thick zone of mineralization in the fold nose. SNUG-25-200 targeted down plunge extent of N3 and intersected narrow intervals of sulphides, confirming the fold structure continues to depth beyond the extent of the 2024 MRE. The various mineralized zones have been historically mined and subsequently named N2 Limb, N3 Limb and South Limb to demarcate their location on the folded mineralized horizon. Additional drilling is needed to properly determine true width of mineralization on each limb and define the folded mineralization. Table 1: Assay Results Selebi North Deposit 1Length refers to drillhole length and not true width. True widths are estimated where density of drilling is sufficient for an estimation. Some true widths cannot be estimated due to insufficient drill density in the folded mineralized horizon. 2Co is not included in the 2024 MRE as cobalt analyses are not consistently available throughout the deposit. 3CuEq was calculated using the formula CuEq=Cu+2.06*Ni assuming long-term prices of US$10.50/lb Ni and US$4.75/lb Cu, and nickel and copper recoveries of 72.0% and 92.4%, respectively, derived from metallurgical studies which consider a conceptual bulk concentrate scenario. Table 2: Drill Collar Information Selebi North Deposit Qualified Person All scientific and technical information in this news release has been reviewed and approved by Sharon Taylor, VP Exploration of the Company, MSc, P.Geo, and a "qualified person" for the purposes of National Instrument 43-101 and Subpart 1300 of Regulation S-K. Sharon Taylor has verified the data disclosed in this news release, including the sampling, analytical and test data underlying the disclosure, through multiple visits to drill sites and sample preparation facilities, assessment and oversight of sample preparation protocols, and review of the QA/QC procedures applied to analytical results received from ALS Chemex. No limitations or failures to verify were identified that could materially affect the results. Quality Control The drill program was completed using a company owned Zinex U5 drill. Drill core samples are BQTK (40.7 mm diameter). All samples are ﾽ core cut by a diamond saw on site. Half of the core is retained for reference purposes. Samples are generally 1.0 to 1.5 metre intervals or less at the discretion of the site geologists. Sample preparation and lab analysis was completed at ALS Chemex in Johannesburg, South Africa. Commercially prepared blank samples and certified Cu/Ni sulphide analytical control standards with a range of grades are inserted in every batch of 20 samples or a minimum of one set per sample batch. Analyses for Ni, Cu and Co are completed using a peroxide fusion preparation and ICP-AES finish (ME-ICP81). Holes are numbered as follows: SNUG (Selebi North Underground) + year + hole number starting at 013. Technical Report The 2024 MRE on the Selebi Mines is supported by the technical report entitled "Technical Report, Selebi Mines, Central District, Republic of Botswana" dated September 20, 2024 (with an effective date of June 30, 2024) (the "Selebi Technical Report"),and the technical report summary entitled "S-K 1300 Technical Report Summary Selebi Mines, Central District, Republic of Botswana, Premium Resources Ltd." dated December 17, 2024 (with an effective date of June 30, 2024) (the "Selebi Technical Report Summary"), each prepared by SLR Consulting (Canada) Ltd. for NEXM. Reference should be made to the full text of the Selebi Technical Report, which was prepared in accordance with NI 43-101 and is available on SEDAR+ (www.sedarplus.ca) and the Selebi Technical Report Summary, which was prepared in accordance with Subpart 1300 of Regulation S-K and is available in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2025 filed with the U.S. Securities and Exchange Commission (the "SEC") on EDGAR (www.sec.gov), in each case, under NEXM's issuer profile. About NexMetals Mining Corp. NexMetals Mining Corp. is a TSX.V and NASDAQ listed mineral exploration and development company focused on redeveloping the past-producing Selebi and Selkirk copper-nickel-cobalt-platinum group element mines in Botswana. NexMetals has confirmed the scale of mineralization is larger than historical estimates, supported by NI 43-101- and Regulation S-K 1300-compliant resource estimates, with ongoing down-hole geophysics, drilling, and metallurgical programs aimed at expanding resources and supporting future economic studies. The Company is led by an experienced management and technical team with a proven track record in global mineral projects, emphasizing disciplined execution, transparent governance, and long-term stakeholder value creation. For further information about NexMetals Mining Corp., please contact: Sean Whiteford CEO [email protected] 1-833-770-4334 Follow Us X: https://x.com/NexMetalsCorp LinkedIn: https://www.linkedin.com/company/NexMetalsMiningCorp Facebook: https://www.facebook.com/NexMetalsMiningCorp Neither the TSX Venture Exchange and its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) nor the Nasdaq Stock Market LLC accepts responsibility for the adequacy or accuracy of this news release. No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein. Cautionary Note Regarding Forward-Looking Statements This news release contains "forward-looking statements" within the meaning of the United States federal securities laws and "forward-looking information" within the meaning of applicable securities legislation (collectively, "forward-looking information") based on expectations, estimates and projections as at the date of this news release. Forward-looking information involves risks, uncertainties and other factors that could cause actual events, results, performance, prospects and opportunities to differ materially from those expressed or implied by such forward-looking information. For the purposes of this release, forward-looking information includes, but is not limited to: an updated MRE and PEA; ongoing and expected drilling at SNUG; possible expanded mineralization beyond the existing MRE; the release of assay results and the expected timing thereof; the expectation that the mineralized corridor continues at depth; the expected continuity and scale of the South Limb and N2 mineralized systems, the implementation of the objectives, goals and future plans of the Company including the proposed advancement of the Selebi Mine as currently contemplated; the expectation that exploration activities (including drill results) will accurately predict mineralization; the expectation that the Company will implement its drilling, geoscience and metallurgical work on its properties and work plans generally; the implementation of the objectives, goals and future plans of the Company including the proposed advancement of the Selebi Mine as currently contemplated; the effective targeting activities proposed by the Company; the benefits of the Company's approach to exploration; management's belief that the historical resource could be indicative of the presence of mineralization on the deposits; and the anticipated benefits of the Company's approach to the resource development plan. These forward-looking statements, by their nature, require the Company to make certain assumptions and necessarily involve known and unknown risks and uncertainties that could cause actual results to differ materially from those expressed or implied in these forward-looking statements. Factors that could cause actual results to differ materially from such forward-looking information include, but are not limited to, capital and operating costs varying significantly from estimates; the preliminary nature of metallurgical test results; the ability of exploration results to predict mineralization, prefeasibility or the feasibility of mine production; the risk that mineralized corridor will not continue at depth; the risk that assay results will not be as anticipated or received when anticipated; the risk that continuity and scale of the South Limb and N2 mineralized systems will not be as expected; delays in obtaining or failures to obtain required governmental, environmental or other project approvals; uncertainties relating to the availability and costs of financing needed in the future; changes in equity markets; inflation; fluctuations in commodity prices; delays in the development of projects; the other risks involved in the mineral exploration and development industry; and those risks set out in the Company's filings with the SEC on EDGAR (www.sec.gov) and public disclosure record on SEDAR+ (www.sedarplus.ca), in each case, under NEXM's issuer profile. Although the Company believes that the assumptions and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not be placed on such information, which only applies as of the date of this news release, and no assurance can be given that such events will occur in the disclosed time frames or at all. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, other than as required by law. To view the source version of this press release, please visit https://www.newsfilecorp.com/release/290762

Vancouver, British Columbia--(Newsfile Corp. - October 22, 2025) - NexMetals Mining Corp. (TSXV: NEXM) (NASDAQ: NEXM) (the "Company" or "NEXM") is pleased to announce that final concentrate assay results from its bulk sample-based metallurgical test program (see news release dated September 3, 2025) at the past-producing Selebi Mines in Botswana have confirmed the potential to produce clean, high-grade, saleable copper and nickel-cobalt concentrates. Clean Concentrates Confirmed Commercial Specifications: Assays confirm both concentrates potentially meet industry-standard smelter acceptance criteria, establishing a potential pathway to commercial sales. Clean Concentrate: Both the copper and nickel concentrates show very low levels of deleterious elements, including magnesium, cadmium, mercury, fluorine, lead, silica, and arsenic, all are below industry-standard penalty thresholds. This clean profile is highly compelling and could enhance marketability and offtake terms. Low-Capital Restart Pathway: Validates the option for the Company to restart operations without the need for an on-site smelter or hydrometallurgical plant, reducing capital intensity and execution risk. Next Steps Based on findings from mineralogical studies, investigate opportunity to reduce nickel losses of liberated nickel sulphide fines in nickel rougher tails by minimizing overgrinding and fines generation. Variability testing on additional Selebi samples. Use results to optimize the flowsheet and mining sequence to drive higher overall recoveries. Morgan Lekstrom, CEO of the Company, commented: "These results confirm the success of our flowsheet process testing which demonstrated our ability to produce two separate, high-grade saleable copper and nickel concentrates. The final assays now show that both concentrates are very clean, containing low levels of deleterious elements and potentially meet commercial smelter specifications. Another exciting step in our accelerated work program, this further de-risks the project and enhances the marketability of Selebi's concentrates." Technical Details The geochemical analyses were carried out by Activation Laboratories Ltd. ("Actlabs"), Ancaster, Ontario, Canada, to provide quality assessment of the Copper and Nickel concentrates produced from Selebi Locked Cycle Test 1 carried out at Blue Coast Research labs (see news release dated September 3, 2025). For brevity, only the analyses of potentially payable metals and deleterious elements are given in Table 1. Deleterious elements that can attract penalties in copper concentrate include arsenic, antimony, bismuth, lead, zinc, mercury, fluorine/chlorine, cadmium, selenium, tellurium, silica (SiO2), alumina (AL2O3), and magnesia (MgO). Deleterious elements in nickel concentrate include arsenic, antimony, bismuth, lead, mercury, zinc, chlorine/fluorine, phosphorous, magnesium, aluminum, silica, and carbon. For both the copper and nickel concentrates, all deleterious elements are well below the industry standard smelter penalty threshold. Table 1. Lock Cycle Test -1 Copper and Nickel Concentrate Quality Assessment Quality Control Analyses were performed at Blue Coast Research ("BCR") in Parksville, British Columbia and Actlabs. BCR used a four acid digestion analyzed by ICP-OES (4AD-ICP) and Combustion-IR by Eltra for Sulfur (S(tot)-ELTRA). Actlabs carried out the remaining analyses using Hg-Cold Vapour AA, Whole rock Analysis-XRF, Short Lived (INAA), Fusion Specific Ion Electrode-ISE and Major Elements Fusion (ICP-OES). Actlabs is an independent laboratory and accredited by the Standards Council of Canada to the ISO/IEC 17025 standard. Qualified Persons All scientific and technical information in this news release has been reviewed and approved by Norman Lotter, P.Eng., Pr.Eng., C.Eng., FSAIMM, FIMM, Consulting Engineer, and by Sharon Taylor, MSc., P.Geo., Vice President Exploration of the Company, each of whom are "qualified persons" for the purposes of NI 43-101 and Subpart 1300 of Regulation S-K. Technical Report The mineral resource estimate on the Selebi Mine is supported by the technical report entitled "Technical Report, Selebi Mines, Central District, Republic of Botswana" and dated September 20, 2024 (with an effective date of June 30, 2024) (the "Selebi Technical Report"), and prepared by SLR Consulting (Canada) Ltd. for NEXM. Reference should be made to the full text of the Selebi Technical Report, which was prepared in accordance with NI 43-101 and is available on SEDAR+ (www.sedarplus.ca) and "S-K 1300 Technical Report Summary Selebi Mines, Central District, Republic of Botswana" and dated December 17, 2024, filed in accordance with Subpart 1300 of Regulation S-K on EDGAR (www.sec.gov), and in each case under NEXM's issuer profile. About NexMetals Mining Corp. NexMetals Mining Corp. is a mineral exploration and development company that is focused on the redevelopment of the previously producing copper, nickel and cobalt resources mines owned by the Company in the Republic of Botswana. NexMetals is committed to governance through transparent accountability and open communication within our team and our stakeholders. NexMetals' team brings extensive experience across the full spectrum of mine discovery and development. Collectively, the team has contributed to dozens of projects, including work on the Company's Selebi and Selkirk mines. Senior team members each have on average, more than 20 years of experience spanning geology, engineering, operations, and project development. For further information about NexMetals Mining Corp., please contact: Morgan Lekstrom CEO and Director [email protected] Jaclyn Ruptash V.P., Communications and Investor Relations [email protected] Follow Us X: https://x.com/NexMetalsCorp LinkedIn: https://www.linkedin.com/company/NexMetalsMiningCorp Facebook: https://www.facebook.com/NexMetalsMiningCorp Neither the TSX Venture Exchange and its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) nor the Nasdaq Stock Market LLC accepts responsibility for the adequacy or accuracy of this news release. No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein. Cautionary Note Regarding Forward-Looking Statements This news release contains "forward-looking statements" within the meaning of the United States federal securities laws and "forward-looking information" within the meaning of applicable Canadian securities legislation (collectively, "forward-looking information") based on expectations, estimates and projections as at the date of this news release. Forward-looking information involves risks, uncertainties and other factors that could cause actual events, results, performance, prospects and opportunities to differ materially from those expressed or implied by such forward-looking information. For the purposes of this release, forward-looking information includes, but is not limited to: the expectation that the Selebi Mines have the potential to produce clean, high-grade, saleable copper and nickel-cobalt concentrates, and the potential commercial sale of such concentrates; the expectation that the Company will not be required to build a smelter or hydrometallurgical facility on the Selebi Mines to restart operations; the expectation that the proposed flow sheet design in respect of the Selebi Mines will result in lower energy requirements and a reduced environmental footprint; the Company's anticipation of a faster and more efficient potential restart of the Selebi Mines; anticipated flexibility in future potential offtake negotiations; the implementation of the objectives, goals and future plans of the Company including the proposed advancement of the Selebi Mines as currently contemplated, including variability testing on additional Selebi samples and flowsheet optimization; the expectation that exploration activities will accurately predict mineralization; the Company's expectation that the mineral resource estimate may be materially improved; the expectation that the Company will implement its drilling, geoscience and metallurgical work on its properties and work plans generally; management's belief that the historical resource could be indicative of the presence of mineralization on the deposits; and the anticipated benefits of the Company's approach to the resource development plan. These forward-looking statements, by their nature, require the Company to make certain assumptions and necessarily involve known and unknown risks and uncertainties that could cause actual results to differ materially from those expressed or implied in these forward-looking statements. Factors that could cause actual results to differ materially from such forward-looking information include, but are not limited to, the Selebi Mines may not restart or re-enter production on the timing anticipated or at all; risks related to the potential commercial sale of concentrates or that such sales do not occur on the timing anticipated or at all; capital and operating costs varying significantly from estimates; the derisking and reduced capex and energy requirements of the Selebi Mines may not be as anticipated; the Company may not enter into future offtake agreements; the ability of exploration and metallurgical results to predict mineralization, prefeasibility or the feasibility of mine production; the risk that future assay results will not be as anticipated or received when anticipated; delays in obtaining or failures to obtain required governmental, environmental or other project approvals; uncertainties relating to the availability and costs of financing needed in the future; changes in equity markets; inflation; fluctuations in commodity prices; delays in the development of projects; the other risks involved in the mineral exploration and development industry; and those risks set out in the Company's filings with the U.S. Securities and Exchange Commission on EDGAR (www.sec.gov) and public disclosure record on SEDAR+ (www.sedarplus.com), in each case, under NEXM's issuer profile. Although the Company believes that the assumptions and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not be placed on such information, which only applies as of the date of this news release, and no assurance can be given that such events will occur in the disclosed time frames or at all. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, other than as required by law. To view the source version of this press release, please visit https://www.newsfilecorp.com/release/271407