GSP Resource Mobilizes Drill and Field Crews for Phase 1 Drilling at Alwin-Mer Properties Targeting High-Grade Gold Expansion & Porphyry Copper, Highland Valley, BC

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Vancouver, British Columbia – June 3, 2026 – TheNewswire - GSP Resource Corp. (TSX-V: GSPR / FSE: 0YD / OTC: GSRCF) (the “Company” or “GSP”) announces that field and drill crews have mobilized for the first phase of 2026 drilling at the combined Alwin-Mer properties located in the Highland Valley Copper Camp of British Columbia.  Drilling operations are expected to commence over the next 7 days with the initial phase of 2026 drilling targeting both the potential for porphyry copper at the Mer property, as well as follow-up drilling to a gold discovery drilled at Alwin in late 2024.  The first phase of drilling is expected to total between 1,200 and 1,500 metres. Alwin High-Grade Gold Targets Phase 1 drilling at the Alwin high-grade gold target is expected to follow up on the discovery of high-grade gold values drilled in late 2024 in step-out hole AM-24-06 that yielded 5.04 grams-per-tonne (g/t) Gold (Au) and 1.01% Copper (Cu) over 7.90 metres (m); including 22.93 g/t Au and 1.82% Cu over 1.64 m1. The Alwin Project currently hosts an inferred mineral resource comprising 1.46 million tonnes (Mt), at an average grade of 1.08% Cu, yielding 34.6 million pounds of Cu2.  Potentially significant silver and gold values have long been known at Alwin, however a lack of historic assays for these metals prior to drilling by GSP has precluded their inclusion in resource estimation.  The new discovery within west-side step-out drill hole AM-24-06 at a depth of 40 m below the current resource pit shell presents an opportunity to augment existing open pit and underground mineable copper resources with high-grade gold values. Significantly, high-grade gold values in AM-24-06 occur in a 1.64 m core width interval, which includes an individual sample of 0.84 m assaying 35.1 g/t Au (1.02 oz/ton), within the interpreted hanging wall of a broader 7.9 m core width copper-gold-silver zone3. The occurrence of high-grade gold values, below the vertical projection of existing “3 Zone” modelled copper resources, affirms the Company’s belief that these two contrasting mineralization styles are structurally and genetically linked, and can be successfully targeted within the context of the current Alwin Mine geological model.  Additionally, the Alwin high-grade gold mineralization is visually distinct from the broader copper zones and is marked by the presence ...

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