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News Release - Vancouver, British Columbia – TheNewswire - September 16, 2025:   GSP Resource Corp. ( TSX-V: GSPR / FSE: 0YD / OTC: GSRCF ) (the “ Company ” or “ GSP ”) announces the mobilization of field crews to the Alwin Mine and Mer properties to follow-up on recently identified geophysical anomalies that are consistent with a potential porphyry mineralization source.

The fall 2025 Alwin-Mer surface exploration program is designed to follow-up on current geophysical, regional porphyry footprint alteration mapping, and historic drilling within the underexplored area north of the Alwin Mine.  The 2025 exploration will be comprised of rock geochemical sampling and reconnaissance geologic alteration mapping within the northern Alwin and Mer claims to aid in the development of future drill targets.  In addition, at the Mer Property a soil geochemical grid will be completed over the historic drilling and trenching area to better define the potential footprint of copper-molybdenum mineralization (Figure 1).

The Company recently announced the results of a NSAMT (natural-source audio-frequency magneto-telluric) geophysical survey at the Alwin Mine Property, which defined a conductive anomaly at depth within the northern Alwin claims.  The conductive anomaly occurs within a well-defined northwest trending porphyry associated alteration zone extending northwest to the Company’s Mer Property 1 ( see GSP Resource Corp. news release dated Agut 12, 2025 ).

Historic drilling within the northern Alwin claims near the conductive anomaly yielded zones of porphyry-style copper mineralization returning 9.7 metres grading 0.55% copper within drill hole 08-06 2 , with further drilling dating back to 1969 intersecting likely conductive talc-kaolinite altered Bethsaida phase intrusive rocks.

Within the Mer Property, which is located 2.5 km to the northwest of the Alwin Property, the Company has submitted a 5-year multi-year area based (MYAB) permit application to the British Columbia Ministry of Mining and Critical Metals (“BC MMCM”).  The permit application was submitted in preparation for an initial phase 1 drill program designed to follow up on a porphyry copper-molybdenum zone defined by historic percussion drilling that returned mineralized intercepts including 0.53% copper over 30 metres ( see GSP Resource Corp. news release dated March 13, 2025 ).

Figure 1: Mer and Alwin Mine Claims – Highland Valley Copper Camp

Click Image To View Full Size

Qualified Person:   The scientific and technical information contained in this news release has been reviewed and approved by Kristopher J. Raffle, P.Geo. (B.C.), principal and consultant of APEX Geoscience Ltd. of Edmonton, AB, a consultant to the Company and a “qualified person” as defined in National Instrument 43-101 — Standards of Disclosure for Mineral Projects .

About GSP Resource Corp.

GSP Resource Corp. is a mineral exploration & development company focused on projects located in Southwestern British Columbia.  The Company owns 100% interest and title to the Alwin Mine Copper-Gold-Silver Property, and the Mer Property, in the Kamloops Mining Division, as well as a 100% interest and title to the Olivine Mountain Property in the Similkameen Mining Division, of which it has granted an option to earn a 60% interest to a third party .

For more information, please contact:

Simon Dyakowski, Chief Executive Officer & Director

Tel: +1 (604) 619-7469

Email: simon@gspresource.com

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 Information

This news release contains “forward‐looking information or statements” within the meaning of applicable securities laws, which may include, without limitation, completing ongoing and planned work, advancing the Alwin and Mer Properties, the potential presence of mineralization at the Alwin and Mer Properties, further evaluation of mineralization at the Alwin and Mer Properties, other statements relating to the technical, financial and business prospects of the Company, its projects and other matters . All statements in this news release, other than statements of historical facts, that address events or developments that the Company expects to occur, are forward-looking statements. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results may differ materially from those in the forward-looking statements. Such statements and information are based on numerous assumptions regarding present and future business strategies and the environment in which the Company will operate in the future, including the price of metals, the ability to achieve its goals, that general business and economic conditions will not change in a material adverse manner, that financing will be available if and when needed and on reasonable terms. Such forward-looking information reflects the Company’s views with respect to future events and is subject to risks, uncertainties and assumptions, including the risks and uncertainties relating to the interpretation of exploration results, risks related to the inherent uncertainty of exploration and cost estimates and the potential for unexpected costs and expenses, and those filed under the Company’s profile on SEDAR+ at www.sedarplus.ca. Factors that could cause actual results to differ materially from those in forward looking statements include, but are not limited to, continued availability of capital and financing and general economic, market or business conditions, adverse weather or climate conditions, failure to maintain all necessary government permits, approvals and authorizations, failure to obtain or maintain community acceptance (including First Nations), decrease in the price of copper, gold, silver and other metals, increase in costs, litigation, and failure of counterparties to perform their contractual obligations. The Company does not undertake to update forward‐looking statements or forward‐looking information, except as required by law.

1  Bynre, et al. (2017): Large-scale sodic-calcic alteration around porphyry copper systems examples from the Highland Valley Copper district Geoscience BC, Report 2017-1, p.213–222.

2  True width of mineralization not known.

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