GSP Resource Corp. Engages Western Exploration Diamond Drilling for Phase 1 Drilling at Alwin-Mer Properties Targeting High-Grade Gold Expansion & Porphyry Copper, Highland Valley, BC

(TheNewswire)

News Release - Vancouver, BritishColumbia – TheNewswire- May 28, 2026:  GSP Resource Corp. (TSX-V: GSPR / FSE: 0YD / OTC: GSRCF) (the“Company” or “GSP”) announces it has engaged WesternExploration Diamond Drilling Ltd. of Logan Lake, BC for the firstphase of 2026 drilling at its combined Alwin-Mer properties located inthe Highland Valley Copper Camp of British Columbia.  Drilling crewsare expected to mobilize over the next 10 days with drilling expectedto commence shortly thereafter.  The initial phase of 2026 drillingis planned to target both the potential for Porphyry Copper at the Merproperty, as well as follow up drilling to a gold discovery drilled atAlwin in late 2024.  The first phase of drilling is expected to totalbetween 1,200 to 1,500 metres. Subject to the results of the firstphase of drilling and market conditions, the Company expects to planand initiate a second phase of drilling during the fall explorationseason.

Alwin High Grade Gold Targets:

Phase 1 drilling at the Alwin high-grade gold target isexpected to follow up on the discovery of high-grade gold valuesdrilled in late 2024 in step-out hole AM-24-06 that yielded5.04 grams-per-tonne (g/t)Gold (Au) and 1.01% Copper (Cu) over 7.90 metres (m); including 22.93g/t Au and 1.82% Cu over 1.64 m1.

The Alwin Project currently hosts an inferred mineralresource comprising 1.46million tonnes (Mt), at an average grade of 1.08% Cu, yielding 34.6million pounds of Cu2. Potentially significant silver and gold values have long been knownat Alwin, however a lack of historic assays for these metals prior todrilling by GSP has precluded their inclusion in resource estimation. The new discovery within west-side step-out drill hole AM-24-06 at a depthof 40 m below the current resource pit shell presents an opportunityto augment existing open pit and underground mineable copper resourceswith high-grade gold values.

Significantly, high-grade gold values in AM-24-06 occur in a1.64 mcore width interval, which includes an individual sample of0.84 m assaying 35.1 g/t Au(1.02 oz/ton), within the interpreted hangingwall of a broader 7.9 m corewidth copper-gold-silver zone3. 

The occurrence of high-grade gold values, below thevertical projection of existing “3 Zone” modelled copper resources,affirms the Company’s belief that these two contrastingmineralization styles are structurally and genetically linked, and canbe successfully targeted within the context of the current Alwin Minegeological model.  Additionally, the Alwin high-grade goldmineralization is visually distinct from the broader copper zones andis marked by the presence of intense texturally destructive blackchlorite-sericite alteration.

As part of the first phase of 2026drilling, GSP is planning to step out andpotentially expand the footprint of important high-grade goldmineralization within AM-24-06.  The drilling is designed to testboth laterally and vertically beyond AM-24-06 to provideadditional intercepts to confirm the structural setting, as well as toextend the depth of drill holes to test additional modelled copperlodes within the structural footwall to the north that are equally asprospective (Figure1).

Figure 1: AlwinMine Planned High-Grade Gold Target
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Mer Porphyry Copper DrillTargets:

GSP also plans to drill a new porphyry target definedthrough compilation of historic drilling data, and recently advancedby follow-up rock and grid soil sampling as part of the first phase of2026 drilling.  Follow-up soil and rock sampling at Mer targeted thearea of historic drilling and defined an approximately 175 x 120 metrecopper anomaly that is open to the northwest.  Rock sampling at thehistoric Mer showing yielded 12 samples returning between 0.14 to1.02% Cu, and averaging 0.4% Cu; in addition to TerraSpec® analysisyielding pargonitic muscovite and magnesium-iron chlorite compositionssuggesting a higher temperature proximal porphyry environment (pleasesee news release dated November 26, 2025, for soils and rocks; andDecember 16, 2025 for TerraSpec® results).

The Mer Property comprises 185 hectares in the KamloopsMining Division, located approximately 1.5 km NW of GSP’s Alwin MineProject and is surrounded by Teck Resources’ Highland Valley Copperclaim group directly west and south of the Highland Valley CopperMine’s active operations4(Figure 2).  The Mer Property hosts a copper exploration target zonelocated NW of the Company’s Alwin Mine high-grade copper-silver-goldtarget zone.

The permit provides for an initial year-one diamonddrilling program, followed by permitting sufficient surfacedisturbance to support anticipated expansion diamond drilling withinthe following four years of the permit.  The Property is wellaccessed via existing logging roads that traverse the proposed drilling area where prior loggingactivities and excavator trenching has exposed a zone of coppermineralization at surface (Figure 3).

About the Mer Claims:

The Mer Claims were the subject of intensiveexploration by the Cleveland Mining & Smelting Co. Ltd. betweenthe years 1965 and 1971.  During that time exploration within thecurrent Mer and surrounding claims now held by Teck Highland ValleyCopper Corporation comprised geochemical and IP/resistivitygeophysical surveys, geologic mapping, bulldozer trenching, completionof 16 percussion drill holes totaling 610 metres (m), and a single 150m diamond drill hole targeting the Mer showing.

Percussion and diamond drilling were reported to definea 70 x 120 metre northeast trending porphyry copper-molybdenum zonecharacterized by disseminated chalcocite, chalcopyrite, bornite andmolybdenite mineralization and associated biotite and sparse potassicalteration.

At the Mer showing, historical percussion drill holes1, 3, 15, and 16, forming a 70 x 40 m diamond pattern in plan,returned values of 9 maveraging 0.47% copper (Cu); 30 m averaging 0.53% Cu; 15 m averaging0.50% Cu; and 21 m averaging 0.51% Cu5 respectively,commencing at downhole depths ranging from 6 to 18 m.

A single diamond drill hole was centered on thepercussion drill holes and intersected a zone of chalcocitemineralization within biotite and potassic altered granodioriteintrusive rocks averaging 0.29% Cu over 24 m from a downhole depth of 9m.  The zone of mineralization remains open to the north andwest.

No significant exploration has been reported withinthis project since the initial work programs ending in the early1970s.  Given the presence of drill-confirmed porphyrycopper-molybdenum mineralization, a location 6 kilometers west of theValley Pit at Teck Resources Limited’s Highland Valley CopperOperations, and its position within the Chataway and Guichongranodiorite phases of the Guichon Batholith, the Mer Project is ahigh priority for follow-up exploration.  

Figure 2: Mer and Alwin Mine Claims– Highland Valley Copper Camp

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Figure 3: Mer Proposed DrillingOblique View Looking North

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Qualified Person:  The scientific and technical information contained in thisnews release has been reviewed and approved by Kristopher J. Raffle,P.Geo. (B.C.), principal and consultant of APEX Geoscience Ltd. ofEdmonton, AB, a consultant to the Company and a “qualified person”as defined in National Instrument 43-101 — Standards of Disclosure for MineralProjects. Mr. Raffle has verified the datadisclosed, which includes a review of the sampling, analytical andtest data underlying the information and opinions containedherein. Mineralization hosted on nearbyproperties is not necessarily indicative of mineralization that may behosted on the Alwin property.

About GSP Resource Corp.

GSP Resource Corp. is a mineral exploration &development company focused on projects located in southwesternBritish Columbia.  The Company owns 100% interest and title to theAlwin Mine Copper-Gold-Silver Property, and the Mer Property, in theKamloops Mining Division, as well as a 100% interest and title to theOlivine Mountain Property in the Similkameen MiningDivision.

For more information, pleasecontact:

Simon Dyakowski, Chief Executive Officer &Director

Tel: +1 (604) 619-7469

Email: simon@gspresource.com

Neither the TSX Venture Exchange nor its RegulationServices Provider (as that term is defined in the policies of the TSXVenture Exchange) accepts responsibility for the adequacy or accuracyof this release.

Forward-Looking Information

This news release contains “forward?lookinginformation or statements” within the meaning of applicablesecurities laws, which may include, without limitation, the potential drilling of the Mer and Alwin Properties andthe expected timelines, other statements relating to the technical,financial and business prospects of the Company, its projects andother matters. All statements in this newsrelease, other than statements of historical facts, that addressevents or developments that the Company expects to occur, areforward-looking statements. Although the Company believes theexpectations expressed in such forward-looking statements are based onreasonable assumptions, such statements are not guarantees of futureperformance and actual results may differ materially from those in theforward-looking statements. Such statements and information are basedon numerous assumptions regarding present and future businessstrategies and the environment in which the Company will operate inthe future, including the price of metals, the ability to achieve itsgoals, that general business and economic conditions will not changein a material adverse manner, that financing will be available if andwhen needed and on reasonable terms. Such forward-looking informationreflects the Company’s views with respect to future events and issubject to risks, uncertainties and assumptions, including therisks and uncertainties relating to theinterpretation of exploration results, risks related to the inherentuncertainty of exploration and cost estimates and the potential forunexpected costs and expenses, and those filedunder the Company’s profile on SEDAR+ at www.sedarplus.ca.Factors that could cause actual results todiffer materially from those in forward-looking statements include,but are not limited to, continued availability of capital andfinancing and general economic, market or business conditions, adverseweather or climate conditions, failure to maintain all necessarygovernment permits, approvals and authorizations, failure to obtain ormaintain community acceptance (including First Nations), decrease inthe price of copper, gold, silver and other metals, increase in costs,litigation, and failure of counterparties to perform their contractualobligations. The Company does not undertake toupdate forward?looking statements or forward?looking information,except as required by law.

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

2 Independent NI 43-101 Technical Report Alwin Copper-SilverGold Project, with an effective date of September 16, 2024, andprepared by Apex Geoscience Ltd. is filed under the GSP Resource Corp.Issuer Profile SEDAR+ (www.sedarplus.ca)

3 The estimated true widthof mineralization is approximately 75% of the drilled width

4 Mineralization present within Teck Resources HighlandValley Operations is not necessarily indicative of GSP Resources Corp.properties.

5 All drill holes are assumed to be vertical, and the truewidth of mineralization is unknown.

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