(via TheNewswire)

Toronto, Ontario – September 28, 2026 – TheNewswire – Loyalist Exploration Limited (CSE: PNGC) (“Loyalist” or the “Company”) is pleased to announce that it has engaged trajectorE Engineering Inc. (“trajectorE”), with J. Dean Thibault of Fredericton, New Brunswick, serving as the principal technical lead, to act as the Company’s Owner’s Engineer. The engagement focuses on the development of a comprehensive process flowsheet spanning mining through to the production of a gold doré bar, primarily in support of advancing the Company’s 100%-owned Tully Gold Project in the Timmins Mining Camp, Ontario.

Under the terms of the engagement, trajectorE and Mr. Thibault will provide independent process engineering expertise, including flowsheet development, metallurgical process evaluation, and technical advisory services to support Loyalist’s pathway from resource definition toward potential future production. This work will build on the Company’s recently announced 2026 NI 43-101 Mineral Resource Estimate at Tully (Indicated: 1.62 Mt at 3.16 g/t Au containing 164,000 ounces; Inferred: 0.95 Mt at 2.03 g/t Au containing 62,000 ounces) and ongoing permitting and Preliminary Economic Assessment activities.

J. Dean Thibault is a highly experienced process chemical engineer and the founder of Thibault & Associates Inc., a firm with more than 40 years of specialization in mineral processing and hydrometallurgical flowsheet development. Following trajectorE’s acquisition of Thibault & Associates’ technical know-how and intellectual property in June 2026, Mr. Thibault joined trajectorE as Senior Process Technical Advisor. He brings extensive expertise in complex extraction and refining technologies across gold and specialty metals, having designed and optimized process technologies for numerous clients over four decades.

“Engaging trajectorE as our Owner’s Engineer and and Dean Thibault as our advisor, is a key step in de-risking and advancing the process design for Tully,” said Errol Farr, President and CEO of Loyalist Exploration. “I first met Dean in 1995, working on the poly-metallic Mount Pleasant project in New Brunswick. Dean’s deep experience in developing practical, commercially viable flowsheets from mining through to doré production will provide independent technical oversight as we move from resource confidence toward engineering and economic studies and development. This engagement aligns directly with our ‘Buy Timmins, Mine Timmins’ strategy of advancing high-potential assets toward production while creating shareholder value.”

Neither the Canadian Securities Exchange nor its Market Regulator (as that term is defined in the policies of the Canadian Securities Exchange) have reviewed or accept responsibility for the adequacy or accuracy of this release.

About trajectorE

trajectorE Engineering Inc. is a St. John’s, Newfoundland-based engineering consulting firm specializing in process engineering, feasibility studies, operational readiness, and Owner’s Engineer services for the mining and mineral processing sectors. The firm focuses on practical, operations-oriented solutions to support clients in achieving sustainable production.

About Loyalist Exploration Limited

Loyalist is a Canadian mineral exploration and development company focused on creating long-term shareholder value through the advancement of high-quality mineral projects in Timmins, Ontario. The  Company's flagship 100%-owned Tully Gold Project, located in the prolific Timmins Gold Camp of northeastern Ontario, is a growing underground gold project with significant exploration upside and excellent development potential. Supported by a high-confidence Indicated and Inferred Mineral Resource Estimate, favourable infrastructure, and a modern geological model, Tully provides a strong platform for continued development and expansion.

Loyalist's strategy is to systematically advance the Tully Gold Project to production while growing the deposit and continuing to evaluate opportunities to expand its portfolio of high-quality mineral assets.

The Company also looks forward to advancing exploration activities on its three other Timmins based projects – DeSantis, Gold Rush and Loveland.

The Company is committed to maintaining the highest standards of technical excellence and responsible development throughout all stages of project advancement.

For further information please visit the Company's website at www.loyalistexploration.com or contact:

Loyalist Exploration Limited

Errol Farr, President and CEO

Email: efarr@loyalistexploration.com

Tel: 647-296-1270

This news release contains “forward-looking statements” or “forward-looking information” (collectively, “forward-looking statements”) within the meaning of applicable securities legislation. All statements, other than statements of historical fact, are forward-looking statements and are based on expectations, estimates and projections as of the date of this news release. Any statements that express or involve discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or performance (often, but not always, identified by words or phrases such as “expects”, “is expected”, “anticipates”, “believes”, “plans”, “projects”, “estimates”, “assumes”, “intends”, “strategy”, “goals”, “objectives”, “forecasts”, “budget”, “schedule”, “potential”, “possible” or variations thereof or stating that certain actions, events, conditions or results “may”, “could”, “would”, “should”, “might” or “will” be taken, occur or be achieved, or the negative of any of these terms and similar expressions) are not statements of historical fact and may be forward-looking statements. Forward-looking statements include, but are not limited to, statements regarding: the ability to complete the Offering on the terms announced, or at all, the timing and content of upcoming work programs; geological interpretations; timing of the Company’s exploration programs; and estimates of market conditions.

Forward-looking statements are subject to a variety of known and unknown risks, uncertainties and other factors that could cause actual events or results to differ from those expressed or implied by forward-looking statements contained herein. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Certain important factors that could cause actual results, performance or achievements to differ materially from those in the forward-looking statements include, among others: general economic conditions in Canada and globally; industry conditions; governmental regulation of the mining industry, including environmental regulation; geological, technical and drilling problems; unanticipated operating events; competition for and/or inability to retain drilling rigs and other services; the availability of capital on acceptable terms; the need to obtain required approvals from regulatory authorities; stock market volatility; volatility in market prices for commodities; liabilities inherent in the mining industry; changes in tax laws and incentive programs relating to the mining industry. This list is not exhaustive of the factors that may affect the Company’s forward-looking statements. There may be other factors that could cause actual events or results to differ from those expressed or implied by forward-looking statements contained herein.

Forward-looking statements are necessarily based upon a number of factors and assumptions that, if untrue, could cause actual events or results to differ from those expressed or implied by forward-looking statements contained herein. Forward-looking statements are based upon a number of estimates and assumptions that, while considered reasonable by the Company at this time, are inherently subject to significant business, economic and competitive uncertainties and contingencies that may cause the Company’s actual financial results, performance, or achievements to be materially different from those expressed or implied herein. Some of the material factors or assumptions used to develop forward- looking statements include, without limitation: the future price of gold; anticipated costs and the Company’s ability to raise additional capital if and when necessary; volatility in the market price of the Company’s securities; future sales of the Company’s securities; the Company’s ability to carry on exploration and development activities; the success of exploration, development and operations activities; the timing and results of drilling programs; the discovery of mineral resources on the Company’s mineral properties; the costs of operating and exploration expenditures; the Company’s ability to identify, complete and successfully integrate acquisitions; the Company’s ability to operate in a safe, efficient and effective manner; health, safety and environmental risks; the presence of laws and regulations that may impose restrictions on mining; employee relations; relationships with and claims by local communities and indigenous populations; availability of increasing costs associated with mining inputs and labour; the speculative nature of mineral exploration and development (including the risks of obtaining necessary licenses, permits and approvals from government authorities); uncertainties related to title to mineral properties; assessments by taxation authorities; fluctuations in general macroeconomic conditions.

The forward-looking statements contained in this news release are expressly qualified by this cautionary statement. Any forward-looking statements and the assumptions made with respect thereto are made as of the date of this news release and, accordingly, are subject to change after such date. The Company disclaims any obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required by applicable securities laws. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements.

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