Patriot Drills 31.2 m at 3.35% Li 2O at CV13 including 4.7 m at 5.37% Li2O, Significantly Expanding the High-Grade Vega Zone

Patriot Drills 31.2 m at 3.35% Li2O at CV13 including 4.7 m at 5.37% Li2O, Significantly Expanding the High-Grade Vega Zone December 11, 2024 – Vancouver, BC, Canada December 12, 2024 – Sydney, Australia

Highlights

• Recent drilling significantly expands the high-grade Vega Zone at CV13:
  • 31.2 m at 3.35% Li2O, including 4.7 m at 5.37% Li2O (CV24-747).
  • 31.8 m at 2.07% Li2O, including 11.7 m at 3.47% Li2O (CV24-773).
    • Includes a 0.9 m sample at 7.11% Li2O, the highest-grade core sample collected from the Property to date.
  • 35.7 m at 1.65% Li2O, including 28.3 m at 2.05% Li2O (CV24-582).
  • 33.0 m at 2.02% Li2O, including 4.6 m at 4.19% Li2O (CV24-754).
  • 29.2 m at 2.05% Li2O, including 14.3 m at 3.09% Li2O (CV24-761).
• Vega Zone remains open in multiple directions.
• The Vega Zone is coincident with an interpreted structural corridor extending for approximately 3.3 km along strike to the CV12 Spodumene Pegmatite – a highly prospective corridor that remains to be drill tested.
  • This association significantly enhances the prospectivity between CV13 and CV12.
• Mineralization continues to be characterized by very large spodumene crystals.
• Results for all drill holes completed at the CV13 Spodumene Pegmatite during the 2024 winter program are reported in this announcement – 33 holes totaling 9,950 m – with all holes completed outside the 2024 Mineral Resource Estimate or at its margin.

Darren L. Smith, Patriot Executive and Vice President of Exploration, comments: “The summer-fall drilling at CV13 achieved its key objectives of significantly expanding the high-grade Vega Zone as well as identifying some potential primary controls on its emplacement. The interpreted coincident structure suggests it may be a primary control on mineralization and extends for approximately 3.3 km towards the CV12 Spodumene Pegmatite. This discovery has increased the prospectivity of this corridor considerably and will be a key area of focus in follow-up drilling in 2025.

“The mineralization at the Vega Zone continues to show many similarities to that of the high-grade Nova Zone at CV5. The intensity of the spodumene mineralization – with samples commonly exceeding 2% Li2O and including two core samples now over 7% Li2O – is nothing less than remarkable and clearly reinforces the world-class nature of the lithium pegmatites at Shaakichiuwaanaan,” Mr. Smith added.

Patriot Battery Metals Inc.

Suite 700 - 838 W. Hastings Street, Vancouver, BC, Canada, V6C 0A6 www.patriotbatterymetals.com TSX: PMET / ASX: PMT / OTC: PMETF / FSE: R9GA

Patriot Battery Metals Inc. (the “Company” or “Patriot”) (TSX: PMET) (ASX: PMT) (OTCQX: PMETF) (FSE: R9GA) is pleased to announce core assay results for all holes completed at the CV13 Spodumene Pegmatite, which forms part of the Company’s wholly owned Shaakichiuwaanaan Property (the “Property” or “Project”), located in the Eeyou Istchee James Bay region of Quebec, during the 2024 summer-fall drill program.

The Property hosts a consolidated (CV5 & CV13) Mineral Resource Estimate¹ (“MRE”) of 80.1 Mt at 1.44% Li2O Indicated and 62.5 Mt at 1.31% Li2O Inferred, with the CV13 Pegmatite accounting for approximately 15% of the contained overall lithium content. The CV13 Spodumene Pegmatite is located within 3 km of the CV5 Spodumene Pegmatite, which is accessible year-round by allseason road and is situated approximately 14 km from a major hydroelectric powerline corridor. The summer-fall drill program at the CV13 Spodumene Pegmatite targeted the high-grade Vega Zone, located along its eastern flank. The objectives were to expand this high-grade zone as well as to identify some primary controls on its emplacement. A total of 33 NQ size drill holes (9,950 m) were completed. Highlights are listed below and expanded upon in Figure 1:

• 31.2 m at 3.35% Li2O, including 4.7 m at 5.37% Li2O (CV24-747).
• 31.8 m at 2.07% Li2O, including 11.7 m at 3.47% Li2O (CV24-773).
• 35.7 m at 1.65% Li2O, including 28.3 m at 2.05% Li2O (CV24-582).
• 33.0 m at 2.02% Li2O, including 4.6 m at 4.19% Li2O (CV24-754).
• 29.2 m at 2.05% Li2O, including 14.3 m at 3.09% Li2O (CV24-761).

The program also returned the highest-grade individual core sample collected to date from the entire Shaakichiuwaanaan Property – 0.9 m at 7.11% Li2O in drill hole CV24-773 (Figure 2). This is the second core sample collected at the Property (both at CV13) to exceed 7% Li2O. To put this further into perspective, the targeted grade of spodumene concentrate post concentration in a processing facility – the base case marketable product in the industry – is 5.5% Li2O.

Additionally, the mineralization at Vega continues to be characterized by very large spodumene crystals of decimetre to metre scale (Figure 2 and Figure 3). Based on the large spodumene crystal sizes and prior beneficiation testwork on the CV13 Pegmatite, a dense media separation (“DMS”) only flowsheet is considered probable (see news release dated July 4, 2023).

All mineralised pegmatite intersections from the summer-fall drill program at CV13 are located outside of the MRE’s block model, or at its margins, and therefore represent a significant expansion of the Vega Zone.

This expansion of the Vega Zone highlights considerable potential for continued high-grade resource growth at CV13 – where the current MRE of 1.5 Mt at 1.62% Li2O Indicated and 19.1 Mt at 1.46% Li2O Inferred forms part of the larger Shaakichiuwaanaan MRE¹ (see news release dated August 5, 2024).

1 Shaakichiuwaanaan (CV5 & CV13) Mineral Resource Estimate (80.1 Mt at 1.44% Li2O and 163 ppm Ta2O5 Indicated, and 62.5 Mt at 1.31% Li2O and 147 ppm Ta2O5 ppm Inferred) is reported at a cut-off grade of 0.40% Li2O (open-pit), 0.60% Li2O (underground CV5), and 0.80% Li2O (underground CV13) with an Effective Date of August 21, 2024 (through drill hole CV24-526). Mineral Resources are not Mineral Reserves as they do not have demonstrated economic viability.

The Vega Zone remains open in multiple directions and covers an area of at least ~0.7 km x 0.4 km with a true thickness of <10 m to 30+ m, hosted within a wider mineralized pegmatite body. Geological modelling (Figure 4) indicates the Vega Zone to be relatively flat-lying to shallow dipping and near-surface (starting at ~100 m vertical depth from surface). The CV13 Spodumene Pegmatite, which hosts the Vega Zone, has now been traced over a strike length of ~2.5 km, downdip over more than 500 m and remains open in multiple directions.

Figure 1: Drill holes completed to date at CV13.

Figure 2: Large spodumene crystal(s) (0.9 m core length) grading 7.11% Li2O, the highest-grade drill core sample collected to date at the Property (drill hole CV24-773).

Figure 3: Very large spodumene crystals in high-grade pegmatite from Vega Zone in drill hole CV24-747. Core grades 12.6 m at 4.64% Li2O from 197.2 to 209.8 m, including 4.3 m at 5.55% Li2O.

Figure 4: Preliminary cross-section interpretation of the CV13 geological model at the Vega Zone. Results reported herein for CV24-571, 579, 582, 747, 754, 757, and 761.

In addition to the significant expansion of the Vega Zone, the program was successful in

identifying an interpreted coincident structure, which may be a primary control on the high-grade mineralization (Figure 5 and Figure 6). This structural corridor (referred to in this announcement as the “Vega Structural Corridor”) is supported from local and regional magnetic data (expressed as a linear feature) as well as structural observations in drill core and is

interpreted to extend at least 3.3 km north-west along geological trend to the CV12 Spodumene Pegmatite.

Apart from the currently defined extent of the Vega Zone and a single shallow drill hole at CV12, this corridor remains to be drill tested and is, therefore, considered highly prospective. Further, a second structural corridor that is interpreted to extend north-west for

approximately 1.9 km from CV13 to the CV8 Spodumene Pegmatite also remains to be drill tested and is considered to be highly prospective.

Figure 5: Two highly prospective interpreted structural corridors between CV13 and the CV8 and CV12 spodumene pegmatites that remain to be drill tested. Airborne magnetic underlay.

Figure 6: Highly prospective interpreted structural corridor coincident with the high-grade Vega Zone at the CV13 Spodumene Pegmatite. The corridor, as outlined with airborne magnetic data, is interpreted to extend ~3.3 km to the CV12 Spodumene Pegmatite and remains to be drill tested.

Core sample assays for drill holes reported in this announcement from the CV13 Spodumene Pegmatite are presented in Table 1 for all pegmatite intersections >2 m. Drill hole locations and attributes are presented in Table 2.

Table 1: Core assay summary for drill holes reported herein at the CV13 Spodumene Pegmatite.

Table 2: Attributes for drill holes reported herein at the CV13 Spodumene Pegmatite.

Quality Assurance / Quality Control (QAQC)

A Quality Assurance / Quality Control protocol following industry best practices was incorporated into the program and included systematic insertion of quartz blanks and certified reference materials into sample batches at a rate of approximately 5% each. Additionally, analysis of pulpsplit sample duplicates was completed to assess analytical precision, and external (secondary) laboratory pulp-split duplicates were prepared at the primary lab for subsequent check analysis and validation.

All core samples collected were shipped to SGS Canada’s laboratory in Val-d’Or, QC, or Radisson, QC, for sample preparation (code PRP90 special) which includes drying at 105°C, crush to 90% passing 2 mm, riffle split 250 g, and pulverize 85% passing 75 microns. The pulps were shipped by air to SGS Canada’s laboratory in Burnaby, BC, where the samples were homogenized and subsequently analyzed for multi-element (including Li and Ta) using sodium peroxide fusion with ICP-AES/MS finish (codes GE_ICP91A50 and GE_IMS91A50).

Qualified/Competent Person

The information in this news release that relates to exploration results for the Shaakichiuwaanaan Property is based on, and fairly represents, information compiled by Mr. Darren L. Smith, M.Sc., P.Geo., who is a Qualified Person as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects, and member in good standing with the Ordre des Géologues du Québec (Geologist Permit number 01968), and with the Association of Professional Engineers and Geoscientists of Alberta (member number 87868). Mr. Smith has reviewed and approved the technical information in this news release.

Mr. Smith is an Executive and Vice President of Exploration for Patriot Battery Metals Inc. and holds common shares and options in the Company.

Mr. Smith has sufficient experience, which is relevant to the style of mineralization, type of deposit under consideration, and to the activities being undertaken to qualify as a Competent Person as described by the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (the JORC Code). Mr. Smith consents to the inclusion in this news release of the matters based on his information in the form and context in which it appears.

About Patriot Battery Metals Inc.

Patriot Battery Metals Inc. is a hard-rock lithium exploration company focused on advancing its district-scale 100%-owned Shaakichiuwaanaan Property (formerly known as Corvette) located in the Eeyou Istchee James Bay region of Quebec, Canada, which is accessible year-round by allseason road and is proximal to regional powerline infrastructure. The Shaakichiuwaanaan Mineral Resource², which includes the CV5 & CV13 spodumene pegmatites, totals 80.1 Mt at 1.44% Li2O Indicated, and 62.5 Mt at 1.31% Li2O Inferred, and ranks as the largest lithium pegmatite resource in the Americas, and the 8^th largest lithium pegmatite resource in the world.

2 Shaakichiuwaanaan (CV5 & CV13) Mineral Resource Estimate (80.1 Mt at 1.44% Li2O and 163 ppm Ta2O5 Indicated, and 62.5 Mt at 1.31% Li2O and 147 ppm Ta2O5 ppm Inferred) is reported at a cut-off grade of 0.40% Li2O (open-pit), 0.60% Li2O (underground CV5), and 0.80% Li2O (underground CV13) with an Effective Date of August 21, 2024 (through drill hole CV24-526). Mineral Resources are not Mineral Reserves as they do not have demonstrated economic viability.

A Preliminary Economic Assessment (“PEA”) was announced for the CV5 Pegmatite August 21, 2024, and highlights it as a potential North American Lithium Raw Materials Powerhouse. The PEA outlines the potential for a competitive and globally significant high-grade lithium project targeting up to ~800 ktpa spodumene concentrate using a simple Dense Media Separation (“DMS) only process flowsheet.

For further information, please contact us at [email protected] or by calling +1 (604) 279-8709, or visit www.patriotbatterymetals.com. Please also refer to the Company’s continuous disclosure filings, available under its profile at www.sedarplus.ca and www.asx.com.au, for available exploration data.

This news release has been approved by the Board of Directors.

“KEN BRINSDEN”

Kenneth Brinsden, President, CEO, & Managing Director

Olivier Caza-Lapointe Head, Investor Relations – North America T: +1 (514) 913-5264 E: [email protected]

Disclaimer for Forward-looking Information

This news release contains “forward-looking information” or “forward-looking statements” within the meaning of applicable securities laws and other statements that are not historical facts. Forward-looking statements are included to provide information about management’s current expectations and plans that allows investors and others to have a better understanding of the Company’s business plans and financial performance and condition.

All statements, other than statements of historical fact included in this news release, regarding the Company’s strategy, future operations, technical assessments, prospects, plans and objectives of management are forward-looking statements that involve risks and uncertainties. Forward-looking statements are typically identified by words such as “plan”, “expect”, “estimate”, “intend”, “anticipate”, “believe”, or variations of such words and phrases or statements that certain actions, events or results “may”, “could”, “would”, “might” or “will” be taken, occur or be achieved. Forward-looking statements in this release include, but are not limited to, statements on the Feasibility Study, including the timing of its release and the content thereof, prospectivity for, and potential existence of, structural geological corridors coincident with the high-grade Vega Zone (CV 13) at the CV 8 and CV 12 pegmatites and the realization of the ~800ktpa spodumene concentrate production target.

Forward-looking information is based upon certain assumptions and other important factors that, if untrue, could cause the actual results, performance or achievements of the Company to be materially different from future results, performance or achievements expressed or implied by such information or statements. There can be no assurance that such information or statements will prove to be accurate. Key assumptions upon which the Company’s forward-looking information is based include, without limitation, that proposed exploration and mineral resource estimate work on the Property will continue as expected, the accuracy of reserve and resource estimates, the classification of resources between inferred and the assumptions on which the reserve and resource estimates are based, long-term demand for spodumene supply, and that exploration and development results continue to support management’s current plans for Property development and expectations for the Project.

Readers are cautioned that the foregoing list is not exhaustive of all factors and assumptions which may have been used. Forward-looking statements are also subject to risks and uncertainties facing the Company’s business, any of which could have a material adverse effect on the Company’s business, financial condition, results of operations and growth prospects. Some of the risks the Company faces and the uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements include, among others, the ability to execute on plans relating to the Company’s Project, including the timing thereof. In addition, readers are directed to carefully review the detailed risk discussion in the Company’s most recent Annual Information Form filed on SEDAR+, which discussion is incorporated by reference in this news release, for a fuller understanding of the risks and uncertainties that affect the Company’s business and operations.

Although the Company believes its expectations are based upon reasonable assumptions and has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. There can be no assurance that forward-looking information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such information. As such, these risks are not exhaustive; however, they should be considered carefully. If any of these risks or uncertainties materialize, actual results may vary materially from those anticipated in the forward-looking statements found herein. Due to the risks, uncertainties and assumptions inherent in forwardlooking statements, readers should not place undue reliance on forward-looking statements. Forward-looking statements contained herein are presented for the purpose of assisting investors in understanding the Company’s business plans, financial performance and condition and may not be appropriate for other purposes.

The forward-looking statements contained herein are made only as of the date hereof. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except to the extent required by applicable law. The Company qualifies all of its forward-looking statements by these cautionary statements.

Competent Person Statement (ASX Listing Rule 5.23)

The mineral resource estimate in this release was reported by the Company in accordance with ASX Listing Rule 5.8 on August 5, 2024. The Company confirms that, as of the date of this announcement, it is not aware of any new information or data verified by the competent person that materially affects the information included in the announcement and that all material assumptions and technical parameters underpinning the estimates in the announcement continue to apply and have not materially changed. The Company confirms that, as at the date of this announcement, the form and context in which the competent person’s findings are presented have not been materially modified from the original market announcement.

The production target referred to in this release was reported by the Company in accordance with ASX Listing Rule 5.16 on August 21, 2024. The Company confirms that, as of the date of this announcement, all material assumptions and technical parameters underpinning the production target in the original announcement continue to apply and have not materially changed.

Appendix 1 – JORC Code 2012 Table 1 (ASX Listing Rule 5.7.1)

Section 1 – Sampling Techniques and Data