Mr. Jeremy Poirier reports

GRIT METALS COMPLETES MAIDEN DRILLING CAMPAIGN AT TWO HIGH PRIORITY CENTRAL FINLAND LITHIUM TARGETS

Grit Metals Corp. has provided an update on its 100-per-cent-held prospects in the Central Finland lithium project, where it has completed its 2,800-metre maiden diamond drilling campaign at Kyrola and Morkyla, targeting lithium-cesium-tantalum-(LCT)-type pegmatites.

Highlights

• The campaign has been completed for a total of 2,787.40 metres for 29 diamond holes across Kyrola and Morkyla targets, part of the Nabba and Jylha permits, respectively.
• All core logging is complete, and samples are in the final stage of cutting before being submitted to ALS Sodankyla for analysis. Assay results will be released once received, reviewed and verified by the company.
• Additional surface sampling of spodumene boulders has also taken place, building on previous field campaigns. These have already been sent to the lab for analysis.
• The completion of the program represents an important milestone for the company, with drilling having tested priority targets defined by surface mapping and sampling.

Jeremy Poirier, chief executive officer of Grit Metals, commented: "Our geology team and drill contractor was extremely efficient in their execution of this drilling campaign. All core has been logged, and final cutting is ongoing before submitting four batches of samples for analysis. We look forward to sharing the assay results once received."

Further details

Following the announcements "Grit Metals Completes Strategic Review of Central Finland Lithium Targets; Prepares for Maiden Diamond Drill program" dated March 2, 2026, and "Grit Metals Initiates Fully Funded Drilling at High-Priority Central Finland Lithium Targets" dated March 23, 2026, and the company is pleased to announce it has successfully delivered in completing of a maiden drilling campaign at Kyrola and Morkyla targets, situated with in the Nabba and Jlyha permits.

At Kyrola, 16 diamond holes were drilled for total combined metreage of 1,603.4 m, testing the well-defined geochemical boulder trend up-ice. At Morkyla, 13 holes for a total of 1,184.0 m tested the area up-ice of the Morkyla discovery boulder cluster.

At the Nabba permit, the Kyrola target comprises an approximately 850 m by 110 m transported boulder anomaly with a coherent geochemical trend, and an interpreted up-ice pegmatite source located approximately 300 to 500 metres northwest, discovered in 2023. Kyrola is situated 1.5 km west of Keliber's Mateneva spodumene-bearing LCT pegmatite occurrence.

Within the Jylha permit and located approximately 1.5 kilometres southwest of the Leviakangas lithium deposit (M+I 0.3 Mt at 1.04 per cent Li2O, inferred 0.6 Mt (million tonnes) at 0.97 per cent Li2O), Morkyla is a 275-metre boulder trend containing coarse spodumene originally discovered in 2024. Samples from the discovery boulder cluster assayed up to 2.46 per cent Li2O.

Grit Metals' exploration targets are located within the emerging Kaustinen lithium district, in some cases as little as 1.5 km along strike from ground held by Sibanye-Stillwater through the Keliber joint venture. With the Keliber lithium project advancing through development and construction, the company believes the proximity to active operations, infrastructure and established operators supports the district-scale potential of lithium mineralization and enhances the strategic positioning of its exploration portfolio.

QP statement

The technical content of this news release has been reviewed and approved by Jake Clark, RPGeo, vice-president of exploration, who is a qualified person as defined by National Instrument 43-101 -- Standards of Disclosure for Mineral Projects.

Mineralization on adjacent or nearby properties is not necessarily indicative of mineralization on the company's properties.

About Grit Metals Corp.

Grit Metals is a junior exploration company focused on lithium-cesium-tantalum pegmatites in central Finland. The company's exploration located within one kilometre of Keliber's integrated lithium mine and production complex, a project developed by Sibanye-Stillwater Ltd. in partnership with Finnish Minerals Group. Keliber represents approximately 783 million euros of capital invested to complete construction, with a further 200-million-euro shareholder financing package agreed to support staged ramp-up. The project comprises mining areas, the Paivaneva spodumene concentrator and a lithium hydroxide refinery at Kokkola, forming an integrated hard-rock lithium supply chain in the region.

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