Grid Metals Reports Final Assays from its 2025 Drill Program at Falcon West Including 20.45% Cs20 over 3.3m; Announces Participation at PDAC

About this update from Grid Metals Corp.

TORONTO, ON / ACCESS Newswire / February 26, 2026 / Grid Metals Corp. (TSXV:GRDM)(OTCQB:MSMGF) ("Grid" or the "Company") is pleased to report the final drill results from its Phase 1 cesium-focused drill program at the 100% owned Falcon West cesium property (the "Property"). Drilling at the Lucy South cesium target has outlined a highly fractionated lithium/cesium/tantalum enriched ("LCT") pegmatite with the cesium largely contained in pollucite and lithium largely contained in coarse grained spodumene. In addition, Grid would like to cordially invite its shareholders and other stakeholders to visit us at Booth #2122 in the Investors Exchange Exhibition Room at the Prospectors and Developers Association of Canada (PDAC) Convention. PDAC, regarded as one of the world's premier resources conferences, will run from Sunday, March 1, 2026 until Wednesday, March 4, 2026 at the Metro Toronto Convention Centre in Toronto, Ontario. Robin Dunbar, President & CEO, will be presenting during the Electric Materials Session on Tuesday, March 3 at 12:17 pm ET in Room 801B. Drilling Highlights A total of 28 holes are reported in this release such that all 67 holes (3,035 metres) have now been reported from the Phase 1 cesium-focused drill program at Lucy South. Significant results include both cesium-rich and lithium-rich intersections hosted by the highly fractionated core zone of the host Lucy South pegmatite. All of the reported drillholes in the program have intercepted Lucy South at no greater than 50m vertical depth. The majority of cesium intercepts have occurred at a down hole depth of less than 30 meters. In late January, the Company commenced a Phase 2 program at Lucy South that will include approximately an additional 60 drill holes focused on remaining gaps around the currently defined Cs-rich portion of the pegmatite. Figure 1: Map of Lucy South target area with interpreted pierce points into the top of the flat-lying Lucy South LCT pegmatite projected to surface for holes LU25-40 to LU25-67 and previous holes completed in this area. Background image is based on a recent government LIDAR survey. Table 1: Selected Length-Weighted Cesium Interval Assays from Drill Holes LU25-40 to LU25-67, Lucy South Phase 1 Drilling Program. See Appendix 1 for complete results and Appendix 2 for hole locations. Note the true thickness for each interval reported is estimated to represent between 80% and 100% of the reported interval lengths. Cesium Results Drill hole logging, quantitative mineralogical analyses and whole-rock geochemical data confirm that pollucite is the dominant cesium-bearing mineral in the Cs-rich portion of the Lucy South LCT pegmatite. Pollucite is present in abundances ranging from <1% to >80% over true thicknesses of <0.1 metres to ~4 metres. It is typically concentrated in one to three discrete intervals within a several metre-thick, quartz-, pollucite- and spodumene-rich core zone in the Lucy South pegmatite. The Company has submitted a number of samples with low, medium and high cesium grades for additional, quantitative mineralogical analysis to better characterize the distribution of pollucite in the pegmatite. Pollucite has historically been the mineral of choice for cesium extraction given its high cesium content, which is typically ~32% Cs 2 O. Lithium Results A majority of the drillholes completed during the program intersected one or more <1 metre- to several metre-thick sections containing coarse grained spodumene that typically have average Li 2 O grades in the range 1 - 3% and locally reaching 6% (Appendix 1). The spodumene-rich intervals are commonly intercalated with pollucite-rich sections in the core zone of the Lucy South pegmatite. The observed mineralogical zonation is indicative of a highly-fractionated LCT pegmatite system. Lucy South Overview Figure 2: Map of Current Drill-Defined Extent of the Lucy LCT Pegmatite(s). Wireframes based on both the average Cs 2 O grade and on LCT pegmatite intersections are shown in red and pink, respectively. The LCT pegmatite has the potential to extend along strike to both the east and west, downdip to the southeast, and downplunge to the south. Figure 3: Drill hole LU25-51 showing core zone of pegmatite (in white) surrounded by host rock. Core grades of 3.35 m with 20.45% Cs 2 O (from 22.0 m) including 2.35 m with 28.4% Cs 2 O. About Cesium and the Cesium Market Cesium is defined as a critical metal by both Canada and the U.S. It has growing uses in high technology and important industrial applications. There is currently believed to be a significant shortage of cesium feedstock globally. Quality Assurance and Quality Control The Company's ongoing exploration program at the Falcon West lithium property is being supervised by Dave Peck, P.Geo. Grid Metals applies best practice quality assurance and quality control ("QAQC") protocols on all of its exploration programs. For the current program, all core was logged and sampled at the Company's core facility located on its Makwa nickel property. Generally, 1.0 metre sample lengths were used. Samples were bagged and tagged and then transported by secure carrier to the Activation Laboratories facility in Ancaster, Ontario for sample preparation and analysis for lithium, cesium, rubidium, tantalum and selected major and trace element abundances using a sodium peroxide fusion total digestion method followed by ICP-OES and ICP-MS analysis. The Company is using two rare metal certified reference materials ("CRMs") and an analytical blank for the program to monitor analytical accuracy and check for cross contamination between samples. The blank and CRM results for the reported intervals were determined to fall within the accepted range of deviation from the certified values. A check assay program using a similar sodium peroxide fusion digestion method has recently been initiated with check samples being analyzed at AGAT laboratories in Thunder Bay, Ontario. Dr. Dave Peck, P.Geo., the Company's Vice President, Exploration, has reviewed and approved the technical information contained in this release. About Grid Metals Corp. Grid Metals provides a focused cesium opportunity at its 100%-owned Falcon West cesium project with upside optionality at its other mineral projects in southeastern Manitoba: All of the Company's southeastern Manitoba projects are located on the ancestral lands of the Sagkeeng First Nation with whom the Company maintains an Exploration Agreement. On Behalf of the Board of Grid Metals Corp. For more information about the Company, please visit our website at www.gridmetalscorp.com or contact: Robin Dunbar - President, CEO & Director - [email protected] Brandon Smith - Chief Development Officer - [email protected] David Black - Investor Relations - [email protected] CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS We seek safe harbour. This news release contains forward-looking statements within the meaning of the United States Private Securities Litigation Reform Act of 1995 and forward-looking information within the meaning of the Securities Act (Ontario) (together, "forward-looking statements"). Such forward-looking statements include the Company's intended use of proceeds and receipt of regulatory approvals, the overall economic potential of its properties, the availability of adequate financing and involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements expressed or implied by such forward-looking statements to be materially different. Such factors include, among others, risks and uncertainties relating to potential political risk, uncertainty of production and capital costs estimates and the potential for unexpected costs and expenses, physical risks inherent in mining operations, metallurgical risk, currency fluctuations, fluctuations in the price of nickel, cobalt, copper and other metals, completion of economic evaluations, changes in project parameters as plans continue to be refined, the inability or failure to obtain adequate financing on a timely basis, and other risks and uncertainties, including those described in the Company's Management Discussion and Analysis for the most recent financial period and Material Change Reports filed with the Canadian Securities Administrators and available at www.sedarplus.ca . Neither the TSX Venture Exchange nor its Regulations Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this press release.   Appendix 1: Drilling results for holes LU25-40 to LU25-67, Lucy South Phase 1 drill program. Collar coordinates are based on the NAD 83 datum and the UTM Zone 15N projection.   Appendix 2: Drill hole specifications. Collar coordinates are based on the NAD 83 datum and the UTM Zone 15N projection. SOURCE: Grid Metals Corp. View the original press release on ACCESS Newswire

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