Mr. Jeremy Poirier reports

GRIT METALS COMPLETES STRATEGIC REVIEW OF CENTRAL FINLAND LITHIUM TARGETS; PREPARES FOR MAIDEN DIAMOND DRILL PROGRAM

Grit Metals Corp. has completed an internal review of all previous exploration work in order to delineate its highest-priority drill targets for its upcoming drill program on its 100-per-cent-held prospects in the Central Finland lithium exploration project. The company is pleased to announce that preparation for a maiden diamond drilling project, targeting lithium-cesium-tantalum (LCT) type pegmatites at Kyrola and Morkyla targets, is under way.

Highlights

• Grit Metals completes technical review of Central Finland lithium targets following appointment of new vice-president, exploration, and technical advisory board.
• Maiden diamond drilling program planned for late Q1 through early Q2 targeting multiple grassroots prospects.
• Kyrola and Morkyla advanced to drill-ready status after geological and geochemical reassessment.
• Targets located within the Kaustinen lithium district, as close as approximately 1.5 kilometres along strike from Keliber JV ground held by Sibanye-Stillwater.
• Multiple spodumene-bearing boulder trends identified across Nabba, Jylha and Tastula permits indicating strong exploration upside.

Further details

Following the appointment of a new vice-president of exploration and a new technical advisory board (disclosed Dec. 4, 2025) Grit Metals' technical team has been actively engaged in a comprehensive review of surface sampling assay data sets and a systematic reassessment of the company's priority exploration targets. This work has focused on validating existing geochemical results, refining geological interpretations and identifying opportunities to enhance drill targeting across the portfolio. The continuing evaluation forms part of Grit Metals' broader strategy to strengthen its technical foundation and ensure future exploration programs are guided by robust, data-driven insights.

Key targets have been refined across several permits:

At the Nabba permit, the Kyrola target comprises an approximately 850-metre-by-110-metre transported boulder anomaly with a coherent geochemical trend and an interpreted up-ice pegmatite source located approximately 300 to 500 metres northwest. Kyrola is a priority drill target.

The Jylha permit hosts multiple targets including Morkyla, located approximately 1.5 kilometres southwest of the Leviakangas lithium deposit (0.47 Mt (million tonnes) at 0.70 per cent Li2O (lithium oxide)), where a 275-metre boulder trend containing coarse spodumene has been defined and is scheduled for drilling. Additional spodumene-bearing boulder trends have been identified at Jylha North, as well as emerging targets at Jylha South and Southwest.

At the Tastula permit, located approximately four kilometres northeast of the Lantta deposit (1.33 Mt at 1.20 per cent Li2O), early stage coarse-grained spodumene boulder clusters have been identified at Tastula North.

The Emmes permit, a 4,071-hectare landholding north of Jylha, remains underexplored and provides additional regional exploration potential.

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.

Grit's technical team have been on the ground in Finland, working closely with local landowners, technical consultants and drilling contractors in preparation for a maiden diamond drilling program, aimed at advancing at least two grassroots targets. This program is due to start late Q1 to early Q2.

QP (qualified person) 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 licences are located within one kilometre of Keliber's mine and production complex, a 600-million-euro investment by Sibanye-Stillwater Ltd. in partnership with Finnish Minerals Group. The Keliber complex, which is currently in commissioning, will comprise open-pit and underground mining, a central spodumene concentrator and a lithium hydroxide plant at tidewater in Kokkola, creating a complete hard-rock lithium supply chain in the region.

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