First Lithium Minerals Discovers Gold Anomaly at Its Lidstone Prospect in Ontario

Toronto, Ontario--(Newsfile Corp. - March 3, 2025) - First Lithium Minerals Corp.(CSE: FLM) (OTC Pink: FLMCF) (FSE: X28) ("First Lithium Minerals"or the"Company") is pleased to announce the discovery of the gold anomaly at its 100% owned Lidstone Prospect (the "Lidstone" or the "Prospect") in northwestern Ontario.

First Lithium Minerals conducted its first reconnaissance field exploration at Lidstone in October 2024 by visiting the property and collecting rock samples. In total, 54 rock samples were collected from outcrops of interest for gold, lithium, copper and nickel.

The Lidstone property occurs proximal to the boundary of the metasedimentary dominated English River Basin with the greenstone and plutonic complexes of the Uchi Domain. Lithologies within the Lidstone properties consist of metasedimentary units including metagreywacke, metasiltstone and meta-argillite with minor iron formations, migmatized supracrustal rocks, mafic to intermediate greenstone belt of basaltic/andesitic flows, tuffs and breccias.

The outcrop sampling data from collected LCT pegmatites did not result in new Li pegmatite targets as the assay data returned a lack of anomalous Li, Cs, Ta, Nb assay results. The Company will conduct a further geological analysis and revise its LCT pegmatites exploration program.

The results of the first field exploration on the prospect showed, however, potential for gold mineralization. A sample from a white / translucent, barren quartz vein returned 0.272 g/t Au (Figure 1). The sample and surrounding geology will be further investigated for potential economic gold mineralization on the Lidstone property in the 2025 field season.

Figure 1. Field photograph of sample F730305 taken from a quartz vein that returned 0.272 g/t Au

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Figure 2. Grab sample locations from the 2024 Lidstone exploration program overlain on geological interpretation

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Rob Saltsman, CEO and Director of First Lithium Minerals, commented: "Our field exploration results at Lidstone are highly encouraging and deliver a new thesis that gold mineralization might be present in the area of the prospect. This is not entirely surprising since northwestern Ontario is an established gold mining district. We are currently conducting detailed geologic research and analysis of the results in the prospect area and eager to commence more extensive exploration for gold and lithium in the upcoming exploration season."

The exploration work was conducted by Bayside Geoscience of Thunder Bay, Ontario. The Company is planning to follow up on the exploration for gold and LCT pegmatites at its Lidstone Prospect in Q2/Q3 2025.

QA/QC

Grab samples were collected by field personnel utilizing rock hammers and chisels. Each sample was accompanied by a detailed description of lithology, alteration and mineralization and geolocated utilizing a handheld Garmin GPSMap 64sx GPS. 1-2kg rock samples were placed into poly bags along with a unique sample tag and sealed with a zip tie in the field.

Field personnel personally transported all samples from the 2024 program to AGAT Laboratories in Thunder Bay. Assay preparation consisted drying

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