• Prospecting has identified six NEW spodumene mineralized zones that are outside the known resource envelope.
• Expansion of the Jackpot lithium mineralization through geological mapping and surface rock sampling.
• Sample results include 4.155% Li2O, 3.918% Li2O and 3.596% Li2O from 145 samples throughout the property.
• The Jackpot Property consists of 297 mineral claims covering 18,800 hectares.

Vancouver, British Columbia--(Newsfile Corp. - October 3, 2025) - IMAGINE LITHIUM INC. (TSXV: ILI) (OTCQB: ARXRF) (the "Company" or "Imagine") is pleased to report a successful field season to expand the known lithium mineralisation on the Jackpot property.

The Jackpot lithium project is located in the Georgia Lake Pegmatite Field, approximately 140 km northeast of Thunder Bay, Ontario (Figure 1). The Jackpot property is characterized by swarms of mineralized lithium-bearing granitic pegmatite dikes distributed over at least five zones on an 18,800 ha land package (Figure 2).

The 2025 exploration program focused on property wide expansion of the known lithium mineralization on the property (Figure 2). Geological mapping and surface rock sampling was completed to follow-up soil geochemical anomalies identified by the 2024 program and additional soil sampling was completed to infill gaps in the older girds. During the 2025 field program, a total of:

• 1,106 field mapping stations were observed;
• 145 surface grab samples were collected for assay outside the current resource envelope;
• 28 muscovite samples were collected for LIBS geochemical analysis;
• 306 soil samples collected from the northern portion of the property (Jackpot West and Newkirk area); and
• 199 soil samples collected from the SW infill grid (north of MNW area).

Figure 1: Jackpot property located next to Trans-Canada Highway, power, port, railroad, and workforce.

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Figure 2: Jackpot project target zones and diamond drillhole collar locations.

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Results of the geological mapping and sampling program yielded 34 samples that returned greater than 0.10% Li2O, with an additional 8 samples returning tantalum values anomalously higher than 100 ppm Ta in bedrock (Table 1). The highest bedrock sample returned 3.92% Li2O from 85 bedrock samples and the highest boulder sample returned 4.16% Li2O from 60 boulder samples throughout the property (Figure 3).

Table 1. Highlights of 2025 Surface Grab Samples Li2O (%)

Figure 3: Jackpot project surface grab sample results from the 2025 field program.

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Of the six new spodumene mineralized zones, Jackpot West and Cosgrave North have in-situ lithium pegmatite on surface (Figure 3). The Jackpot South and Newkirk Zones consist of subcrop and boulders, while the Southwest Zone and Blay Lake Zone are defined by boulders (Figure 3). The Jackpot South, Blay Lake, Jackpot West, Cosgrave North and Newkirk Zones will all be permitted for diamond drilling and bedrock stripping that will be completed in the winter and spring of 2026.

Simone Suen, President of Imagine, commented: "We have discovered lithium mineralization in new areas of the property that have previously been untested and we are currently prioritizing diamond drill targets based on a very productive summer prospecting season. Our team is very excited to commence drilling on these new targets and we are in an excellent position to build on our 3.1 Mt indicated and 5.3 Mt inferred (grading 0.85% and 0.91% Li2O, respectively) Mineral Resource on the project."

Scale (m) QA/QC Protocol

Imagine Lithium implemented a strict QA/QC protocol in processing all rock and soil samples collected from the core material and soil horizons obtained on the Jackpot property. The protocol included the insertion and monitoring of appropriate reference materials. High and low concentration certified lithium standards, blanks and duplicates are used to validate the accuracy and precision of the assay results.

All collected core rock and soil samples were put in sturdy plastic bags, tagged, and sealed in the core shack under the supervision of a professional geologist. The sample number, depth and brief description of each sample is logged and entered to a digital database. Rock core samples were split using a diamond saw with half of the sample remaining in the core box and the other being placed in a labelled sample bag. Duplicate samples were quarter split and placed into individual sample bags.

All sample bags were put into rice bags and stored securely before being delivered to AGAT Laboratories in Thunder Bay, Ontario. Samples are processed and crushed at the AGAT facility in Thunder Bay. Lithium was analyzed by Sodium Peroxide Fusion with ICP-OES and ICP-MS Finish. Soil samples were placed into small brown paper bags and analyzed by 4-Acid digest with ICP-OES and ICP-MS Finish.

Qualified Person

The technical content of this news release was reviewed and approved by Jason Arnold, P.Geo., an Independent Qualified Person as defined by the National Instrument 43-101.

About Imagine Lithium Inc.

Imagine is a junior mining exploration company focused on seeking and acquiring world-class mineral projects. The company holds the Jackpot lithium property located in the Georgia Lake area about 140 km NNE of Thunder Bay, Ontario, is approximately 12 km by road from the Trans-Canada Highway (Hwy 11), and is in proximity to sources of power, railroads, and ports. The Jackpot Property consists of 297 mineral claims covering 18,800 hectares. The Property contains NI 43-101 compliant Mineral Resources of 3.1 Mt grading 0.85% Li2O in the Indicated category and 5.3 Mt grading 0.91% Li2O in the Inferred category, as well as a number of other known pegmatite showings.

ON BEHALF OF THE BOARD

"Simone Sze Man Suen," President

FOR FURTHER INFORMATION, PLEASE CONTACT:

Telephone: +1-604-683-3995
Toll Free: 1-888-945-4770

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

FORWARD LOOKING STATEMENTS: This news release contains forward-looking statements, which relate to future events or future performance and reflect management's current expectations and assumptions. Such forward-looking statements reflect management's current beliefs and are based on assumptions made by and information currently available to the Company. Investors are cautioned that these forward-looking statements are neither promises nor guarantees and are subject to risks and uncertainties that may cause future results to differ materially from those expected. These forward -looking statements are made as of the date hereof and, except as required under applicable securities legislation, the Company does not assume any obligation to update or revise them to reflect new events or circumstances. All the forward-looking statements made in this press release are qualified by these cautionary statements and by those made in our filings with SEDAR in Canada (available at ).

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SOURCE: Imagine Lithium Inc.

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