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Patriot Files NI 43-101 Technical Report on the Shaakichiuwaanaan Mineral Resource Estimate, Quebec, Canada

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Patriot Battery Metals (OTCQX:PMETF) has filed a NI 43-101 Technical Report for its Shaakichiuwaanaan Project in Quebec's James Bay Region. The report, prepared by independent consultants BBA Inc. and Primero Group Americas Inc., covers the updated Mineral Resource Estimate (MRE) for the CV5 and CV13 LCT Pegmatites, including the Rigel and Vega caesium zones.

The company clarified two significant MRE updates in 2025: A May update focused on CV5 and CV13 spodumene pegmatites, and a July update revealing the world's largest known pollucite-hosted caesium pegmatite Mineral Resource at the Rigel and Vega zones. While the May update wasn't considered a "material change," the July discovery triggered the requirement for this Technical Report filing.

[ "Discovery of world's largest known pollucite-hosted caesium pegmatite Mineral Resource", "Successful resource category upgrade from inferred to indicated category in May 2025", "Technical report prepared by reputable independent consulting firms" ]

Patriot Battery Metals (OTCQX:PMETF) ha depositato un rapporto tecnico NI 43-101 relativo al progetto Shaakichiuwaanaan nella regione della Baia di James, Quebec. Il documento, redatto da consulenti indipendenti BBA Inc. e Primero Group Americas Inc., presenta la stima aggiornata delle risorse minerarie (MRE) per i pegmatiti LCT CV5 e CV13, includendo le zone cesio Rigel e Vega.

L'azienda ha spiegato due aggiornamenti rilevanti del MRE nel 2025: a maggio un aggiornamento focalizzato sui pegmatiti di spodumene CV5 e CV13, e a luglio la scoperta della più grande risorsa mineraria nota al mondo di pegmatite contenente pollucite e cesio nelle zone Rigel e Vega. Mentre l'aggiornamento di maggio non è stato considerato una "modifica sostanziale", la scoperta di luglio ha reso obbligatorio il deposito di questo rapporto tecnico.

  • Scoperta della più grande risorsa nota di pegmatite contenente pollucite e cesio
  • Upgrade della categoria di risorsa da inferita a indicata a maggio 2025
  • Rapporto tecnico preparato da rinomate società di consulenza indipendenti

Patriot Battery Metals (OTCQX:PMETF) presentó un Informe Técnico NI 43-101 para su proyecto Shaakichiuwaanaan en la región de la Bahía de James, Quebec. El informe, elaborado por las consultoras independientes BBA Inc. y Primero Group Americas Inc., incluye la estimación actualizada de recursos minerales (MRE) para los pegmatitas LCT CV5 y CV13, abarcando las zonas de cesio Rigel y Vega.

La compañía detalló dos actualizaciones significativas del MRE en 2025: una en mayo centrada en los pegmatitas de espodumena CV5 y CV13, y otra en julio que reveló la mayor reserva conocida del mundo de pegmatita con pollucita hospedando cesio en las zonas Rigel y Vega. Aunque la actualización de mayo no se consideró un "cambio material", el hallazgo de julio hizo necesario presentar este informe técnico.

  • Descubrimiento de la mayor reserva conocida de pegmatita con pollucita que contiene cesio
  • Mejora de categoría de recurso de inferido a indicado en mayo de 2025
  • Informe técnico preparado por consultoras independientes de reconocido prestigio

Patriot Battery Metals (OTCQX:PMETF)� 퀘벡 제임스베� 지역의 Shaakichiuwaanaan 프로젝트� 대� NI 43-101 기술보고서를 제출했습니다. 해당 보고서는 독립 컨설턴트� BBA Inc.와 Primero Group Americas Inc.가 작성했으� CV5 � CV13 LCT 페그마타이트� 대� 갱신� 광물자원추정�(MRE)와 Rigel � Vega 세슘존을 포함합니�.

회사� 2025� � 번의 주요 MRE 업데이트� 설명했습니다. 5� 업데이트� CV5와 CV13 스포듀� 페그마타이트� 중점� 두었�, 7� 업데이트에서� Rigel � Vega 지역에� 세계에서 알려� 가� � 폴루사이� 함유 세슘 페그마타이트 광물자원� 확인되었습니�. 5� 업데이트� "중대� 변�"으로 보지 않았지�, 7월의 발견으로 인해 � 기술보고� 제출� 요구되었습니�.

  • 세계에서 알려� 가� � 폴루사이� 함유 세슘 페그마타이트 광물자원 발견
  • 2025� 5월에 추정(inferred)에서 확정(indicated)으로 자원 등급 상승
  • 저명한 독립 컨설� 업체들이 작성� 기술보고�

Patriot Battery Metals (OTCQX:PMETF) a déposé un rapport technique NI 43-101 pour son projet Shaakichiuwaanaan dans la région de la Baie James au ϳé. Le rapport, préparé par les consultants indépendants BBA Inc. et Primero Group Americas Inc., présente l'estimation mise à jour des ressources minérales (MRE) pour les pegmatites LCT CV5 et CV13, incluant les zones au césium Rigel et Vega.

La société a précisé deux mises à jour importantes de la MRE en 2025: une mise à jour de mai axée sur les pegmatites de spodumène CV5 et CV13, et une mise à jour de juillet révélant la plus grande ressource minérale connue au monde de pegmatite hébergeant de la pollucite et du césium dans les zones Rigel et Vega. Si la mise à jour de mai n'a pas été considérée comme un "changement matériel", la découverte de juillet a rendu obligatoire le dépôt de ce rapport technique.

  • Découverte de la plus grande ressource connue de pegmatite contenant de la pollucite et du césium
  • Passage réussi de la catégorie de ressource de inférée à indiquée en mai 2025
  • Rapport technique préparé par des cabinets de conseil indépendants réputés

Patriot Battery Metals (OTCQX:PMETF) hat einen NI 43-101 Technischen Bericht für das Shaakichiuwaanaan-Projekt in der James-Bay-Region von Quebec eingereicht. Der Bericht, erstellt von den unabhängigen Beratern BBA Inc. und Primero Group Americas Inc., enthält die aktualisierte Schätzung der mineralischen Ressource (MRE) für die LCT-Pegmatite CV5 und CV13 sowie die Caesiumzonen Rigel und Vega.

Das Unternehmen erläuterte zwei bedeutende MRE-Aktualisierungen im Jahr 2025: Ein Mai-Update konzentrierte sich auf die Spodumen-Pegmatite CV5 und CV13, und ein Juli-Update offenbarte die in den Zonen Rigel und Vega. Während das Mai-Update nicht als "wesentliche Änderung" galt, löste die Entdeckung im Juli die Pflicht zur Einreichung dieses technischen Berichts aus.

  • Entdeckung der weltweit größten bekannten pollucithaltigen Caesium-Pegmatit-Mineralressource
  • Erfolgreiches Upgrade der Ressourcenkategorie von Inferred auf Indicated im Mai 2025
  • Technischer Bericht erstellt von angesehenen unabhängigen Beratungsunternehmen
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ѰոÉ, Aug. 29, 2025 /PRNewswire/ -August 30, 2025 � Sydney, Australia

Patriot Battery Metals Inc. (the "Company" or "Patriot") (TSX: PMET) (ASX: PMT) (OTCQX: PMETF) (FSE: R9GA)is pleased to announce it has filed on a technical report (the "Technical Report"), prepared in accordance with National Instrument 43-101 � Standards of Disclosure for Mineral Projects("NI 43-101"), titled "Mineral Resource Estimate for the Shaakichiuwaanaan Project, James Bay Region, ϳé, Canada", with an Issue Date of August 28, 2025, and Effective Date of June 20, 2025. The filing follows the July 20, 2025, news releaseof a updated Mineral Resource Estimate for the Shaakichiuwaanaan Project's CV5 and CV13 LCT Pegmatites, including the Rigel and Vega caesium zones.

The Technical Report has been prepared by BBA Inc., with contributions from Primero Group Americas Inc., both consulting groups independent of the Company, in accordance with NI43�101. The report is available on SEDAR+ and will shortly be available on the Company's .

Clarification Regarding the Mineral Resource Estimate Updates in 2025

Since the beginning of the 2025, the Company has disclosed two updates of the Mineral Resource Estimate ("MRE") at the Property, the results of which are included in the Technical Report. The Company would like to provide the following clarifications regarding these updates.

The first update, announced on May 12, 2025, in the press release titled "Significant Mineral Resource Upgrade at Shaakichiuwaanaan Lithium Project to Underpin Impending Feasibility Study" (the ""), disclosed an updated Consolidated MRE at the Property focused on the CV5 and CV13 spodumene pegmatites. While the May 12 PR constituted material information warranting timely disclosure, a careful assessment by the Company of its impact on operational planning, economic outlook, and strategic direction led management to conclude that it did not constitute a "material change" in respect of the Company for Canadian securities law purposes. While the resource category tonnes upgrade from inferred to the indicated category were important, they did not alter the Project's execution timeline, capital allocation priorities, or underlying technical assumptions to that already described in the public domain. As a result, the Company determined that it was not required to file an updated technical report under NI 43-101 in connection with the May 12 PR.

Conversely, the Company considers the updates contained in its press release dated July 20, 2025, titled "World's Largest Pollucite-Hosted Caesium Pegmatite Mineral Resource Defined at Shaakichiuwaanaan" (the ""), to be material given that the Company disclosed for the first time a maiden caesium resource at the Rigel and Vega zones which was concluded to be the world's largest known pollucite-hosted caesium pegmatite Mineral Resource. The July 20 PR therefore triggered the obligation under NI 43-101 to file this Technical Report within 45 days of its release.

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 all-season road and is proximal to regional powerline infrastructure. The Project hosts the world's largest1 pollucite-hosted caesium pegmatite Mineral Resource2 at the Rigel and Vega zones with 0.69 Mt at 4.40% Cs2O, Indicated, and 1.70 Mt at 2.40% Cs2O, Inferred. Additionally, the Project hosts a Consolidated Mineral Resource, which includes the Rigel and Vega caesium zones, totalling 108.0Mt at 1.40% Li2O, 0.11% Cs2O, 166 ppm Ta2O5, and 66 ppm Ga, Indicated, and 33.4Mt at 1.33% Li2O, 0.21% Cs2O, 155 ppm Ta2O5, and 65 ppm Ga, Inferred, and ranks as the largest lithium pegmatite resource in the Americas, and in the top ten globally.

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

This news release has been approved by

"KEN BRINSDEN"

Kenneth Brinsden, President, CEO, & Managing Director

Qualified/Competent Person

The technical and scientific information in this news release that relates to 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 ϳé (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.


_____________________
1 Determination based on Mineral Resource data, sourced through July 11, 2025, from corporate disclosure.


2 The Consolidated MRE cut-off grade is variable depending on the mining method and pegmatite (0.40% Li2O open-pit, 0.60% Li2O underground CV5, and 0.70% Li2O underground CV13). A grade constraint of 0.50% Cs2O was used to model the Rigel and Vega caesium zones, which are entirely within the CV13 Pegmatite's open-pit mining shape. The Effective Date of the MREs is June 20, 2025 (through drill hole CV24-787). Mineral Resources are not Mineral or Ore Reserves as they do not have demonstrated economic viability.

Disclaimer for Forward-looking Information

This press release contains "forward-looking information" or "forward-looking statements" within the meaning of applicable Securities Laws.

All statements, other than statements of present or historical facts, are forward-looking statements. Forward-looking statements involve known and unknown risks, uncertainties and assumptions and accordingly, actual results could differ materially from those expressed or implied in such statements. You are hence cautioned not to place undue reliance on forward-looking statements. Forward-looking statements are typically identified by words such as "plan", "development", "growth", "continued", "intentions", "expectations", "strategy", "opportunities", "anticipated", "trends", "potential", "outlook", "ability", "additional", "on track", "prospects", "viability", "estimated", "reaches", "enhancing", "strengthen", "target", "will", "believes", 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.

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 forward-looking statements, readers should not place undue reliance on forward-looking statements.

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 should review the detailed risk discussion in the Company's most recent Annual Information Form filed on SEDAR+ for a fuller understanding of the risks and uncertainties that affect the Company's business and operations.

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.

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SOURCE Patriot Battery Metals Inc.

FAQ

What is the significance of Patriot Battery Metals' (PMETF) new Technical Report filing?

The Technical Report documents the updated Mineral Resource Estimate for the Shaakichiuwaanaan Project, notably including the world's largest known pollucite-hosted caesium pegmatite Mineral Resource at the Rigel and Vega zones.

When did Patriot Battery Metals announce its caesium resource discovery at Shaakichiuwaanaan?

Patriot announced the maiden caesium resource discovery at the Rigel and Vega zones on July 20, 2025, which triggered the requirement for the NI 43-101 Technical Report filing.

What are the key components of PMETF's Shaakichiuwaanaan Project?

The project includes the CV5 and CV13 LCT Pegmatites, along with the newly documented Rigel and Vega caesium zones.

Why wasn't a technical report required for PMETF's May 2025 resource update?

The May 2025 update, while important, was not considered a 'material change' as it didn't alter the project's execution timeline, capital allocation priorities, or underlying technical assumptions.

Where is Patriot Battery Metals' Shaakichiuwaanaan Project located?

The Shaakichiuwaanaan Project is located in the James Bay Region of Quebec, Canada.
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