GSP Plans Expanded Drill Campaign and Highlights Recent Exploration Success at the Combined Alwin-Mer Properties, Highland Valley Copper Camp, BC

Vancouver, British Columbia – March 31, 2026 – TheNewswire –  GSP Resource Corp. (TSX-V: GSPR / FSE: 0YD / OTC: GSRCF) (the “Company” or “GSP”) announces the submission of a new 5-year multi-year area based (MYAB) permit application to the British Columbia Ministry of Mining and Critical Metals (“BC MMCM”) for the Alwin Mine Project.

The Alwin Mine Project is currently permitted for drilling activities through an existing Mines Act Permit, and upon approval the new permit will allow for expanded drill testing of newly identified exploration targets throughout the Property, in addition to already permitted near-mine areas.

Throughout 2024 and 2025 the Company executed multi-phased exploration campaigns including: surface rock and soil sampling; short wave infra-red (VIS-SWIR) hyperspectral TerraSpec® analysis; NSAMT (natural-source audio-frequency magneto-telluric) geophysical surveys; and diamond drilling.

The exploration campaigns identified opportunities to expand existing mineral resources and resulted in the discovery of new potential porphyry and high-grade copper-gold-silver vein targets.  Highlights of the 2024 and 2025 Alwin Mine Project exploration include:

• Discovery of New High-Grade Gold Zone within drill hole AM-24-06 assaying 5.04 g/t Gold and 1.01% copper over 7.90m; including 22.93 g/t Gold and 1.82% copper over 1.64 m1.  The results point to the presence of a unique high-grade gold subset of mineralization at Alwin that is not yet well understood. 

• The results of the summer 2025 NSAMT survey identified an untested deep conductive anomaly within the northern portion of the Alwin Property.  The results could indicate a potential underlying porphyry source for the high-grade copper-gold-silver mineralization at Alwin2 

• Fall 2025 surface rock grab sample results highlight the high-grade Apex Zone that yielded assays including 1.85% copper, 348 g/t silver and 2.6 g/t gold; in addition to the MER Zone returning widespread moderate copper values. TerraSpec® analysis of these samples yielded muscovite and chlorite compositions at MER indicative of a high temperature proximal porphyry environment, and peripheral porphyry environment at Alwin supporting the potential for an undiscovered porphyry system3 

• Fall 2025 soil geochemical results expand surface copper zone at nearby Mer Property and highlight near surface in-pit resource expansion potential at Alwin Mine4 

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Image 1: Diamond Drill Move Underway at Alwin Mine Project during 2024

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, an independent 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.

For more information, please contact:

Simon Dyakowski, Chief Executive Officer & Director

Tel: +1 (604) 619-7469

Email: [email protected]

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 potential 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 See GSP Resource Corp. news release dated January 16, 2025

2 See GSP Resource Corp. news release dated August 12, 2025

3 See GSP Resource Corp. news release dated November 26, 2025, and December 16, 2025

4 See GSP Resource Corp. news release dated January 26, 2026

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