GSP completes Phase 1 drilling at Alwin and Mer

News Release – Vancouver, British Columbia – TheNewswire - August 11, 2026: GSP Resource Corp. ( TSX‑V:GSPR / FSE:0YD / OTC:GSRCF) (the “ Company ” or “ GSP ”) announces the completion of its 2026 Phase 1 diamond drilling program at the Company’s 100%-owned Alwin Mine and Mer properties, located in the Highland Valley Copper Camp of southwestern British Columbia. Phase 1 drilling totalled approximately 1,801 metres (m) across eight diamond drill holes, exceeding the planned program of 1,200 – 1,500 metres, with the expansion driven by the addition and extension of drill holes at Mer and Alwin on the basis of alteration and mineralization observed in drill core.

All drill core has been logged and sampled, with samples submitted to ALS Canada Ltd. in Kamloops, BC for multi-element and precious metals analysis. Assay results are expected in stages through the third quarter of 2026, with results from the Alwin Mine target anticipated first.

Highlights:

Phase 1 drilling totalled approximately 1,801 metres across eight diamond drill holes at the Alwin Mine and Mer properties, approximately 20% above the upper end of the planned 1,200 – 1,500 metre program

All four drill holes at Mer intersected near-surface visible copper mineralization. The program tested historic percussion drilling that returned mineralized intercepts including 0.53% copper over 30 metres 1 , and the 175 x 120 metre copper-in-soil anomaly defined by the Company’s 2025 soil geochemical program

The maiden drill program at the Mer Property included hole ME-26-04 which was extended on the basis of alteration and mineralization observed in core to a final depth of 292.7 metres — the deepest drill hole completed at the Mer Property to date

Drill core at Mer displayed fracture-related potassic, chloritic (propylitic) and silicification alteration, with trace sulphide mineralization observed through broad intervals of hole ME-26-04 , which terminated in trace-mineralized granodiorite

At Alwin, drilling designed to flank high-grade gold values returned in drill hole AM-24-06 yielded mineralized zones in each of the drill holes. These zones have visual characteristics similar to those drilled in 2024 and are consistent with the modelled mineral resource vein lodes, further reinforcing the Company’s geological model

All drill core has been logged and sampled, with samples submitted to ALS Canada Ltd. in Kamloops, BC for multi-element and precious metals analysis; assay results are expected in stages through the third quarter of 2026, with Alwin Mine results anticipated first

“Based on the strength of visual indications of copper mineralization, our maiden drill program at Mer was a success,” commented Simon Dyakowski, CEO of GSP Resource Corp. “The program was expanded beyond plan on the strength of the alteration and mineralization logged in core, finishing with the deepest hole ever drilled at the property. Together with the four holes completed at Alwin following up on the high-grade gold-copper intercepts of our 2024 program, Phase 1 has delivered more metres than planned across both properties. We look forward to a steady flow of assay results in the weeks ahead.”

Maiden Drill Program at Mer Porphyry Copper Target

The Company completed four diamond drill holes totalling approximately 651 m at the Mer Property (Figure 1), constituting the first diamond drill program at the target since a single historic hole completed in 1966. Drill hole ME-26-04 , collared at an azimuth of 290° and dip of -45°, was designed to undercut, at depth, the historic percussion-drilled copper zone — which returned mineralized intercepts including 30 m averaging 0.53% copper (Cu) — and the approximately 175 x 120 metre copper-in-soil anomaly, open to the northwest, defined by the Company’s 2025 surface geochemical program (Figure 2).

Drill core from ME-26-04 displayed variably developed, fracture-related potassic, chloritic (propylitic) and silicification alteration hosted in granodiorite of the Guichon Creek Batholith, with trace sulphide mineralization observed through broad intervals of the drill hole. The hole was extended based on these observations and terminated in trace-mineralized granodiorite at a final depth of 292.7 m.

Visual estimates of mineralization and descriptions of alteration should not be considered a proxy or substitute for laboratory analyses. Assay results are required to determine the presence and grade of any mineralization, and the Company cautions that visual observations provide no assurance as to the results of pending laboratory analyses.

Alwin Mine High-Grade Gold Target

As previously announced on July 8, 2026, the Company completed four step-out diamond drill holes totalling approximately 1,150 m at the Alwin Mine target, following up on the discovery of high-grade gold values in 2024 step-out hole AM-24-06 that yielded 5.04 grams per tonne (g/t) gold (Au) and 1.01% Cu over 7.90 m; including 22.93 g/t Au and 1.82% Cu over 1.64 m 2 . Observations of core from the 2026 Alwin holes identified several quartz-chlorite-sericite and chalcopyrite-pyrite (±bornite) mineralized zones in each of the drill holes. These zones have visual characteristics similar to those drilled in 2024.

Figure 1: Drill alignment underway at Mer Property (July 13, 2026)

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Figure 2: Mer Property drill plan showing 2025 soil anomaly (values labelled in Cu ppm)

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About the Mer Claims

The Mer Property comprises 185 hectares in the Kamloops Mining Division, located approximately 1.5 km NW of GSP’s Alwin Mine Project, and is surrounded by Teck Resources’ Highland Valley Copper claim group directly west and south of the Highland Valley Copper Mine’s active operations 3 . The Property lies approximately 6 km west of the Valley Pit and sits within the Chataway and Guichon granodiorite phases of the Guichon Creek Batholith. The Mer Claims were the subject of intensive exploration by the Cleveland Mining & Smelting Co. Ltd. between 1965 and 1971, including sixteen percussion drill holes totalling 610 m and a single 150 m diamond drill hole. Percussion and diamond drilling were reported to define a 70 x 120 metre northeast-trending porphyry copper-molybdenum zone characterized by disseminated chalcocite, chalcopyrite, bornite and molybdenite mineralization and associated biotite and sparse potassic alteration. No significant exploration had been reported at the project since the initial work programs ending in the early 1970s, prior to the Company’s current programs.

Next Steps

Assay results from the Phase 1 program will be released as they are received, compiled and verified. Results will be integrated with the Company’s geophysical, geochemical, hyperspectral and drilling datasets to guide targeting for subsequent programs across the combined Alwin-Mer property position.

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 . Mr. Raffle has verified the data disclosed, which includes a review of the sampling, analytical and test data underlying the information and opinions contained herein. Mineralization hosted on nearby properties is not necessarily indicative of mineralization that may be hosted on the Alwin or Mer properties.

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: 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, the anticipated timing and release of assay results from the Phase 1 drilling program, planned follow-up exploration at the Mer and Alwin Properties and the expected timelines, 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 releases dated March 13, 2025, and November 26, 2025. Historic drill results predate NI 43-101; a qualified person has not done sufficient work to verify the historic results, and they should not be relied upon. All historic drill holes are assumed to be vertical, and the true width of mineralization is unknown.

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

3 Mineralization present within Teck Resources' Highland Valley Operations is not necessarily indicative of GSP Resource Corp. properties.

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TheNewsWire

August 11, 2026 - 4:00 AM PDT

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