GSP Advances AMT Geophysical Survey, Identifying a Large Conductive Anomaly at Alwin Mine Property

(TheNewswire)

• 2025 NSAMT survey has confirmed andstrengthened the identification of an untested deep conductiveanomaly

• First property-wide geophysicalsurvey in nearly 20 years

• Provides further evidence for anunderlying porphyry source for the high-grade copper-gold-silvermineralization at Alwin

News Release - Vancouver, BritishColumbia – TheNewswire- August 12, 2025: GSP Resource Corp. ( TSX-V: GSPR / FSE: 0YD / OTC:GSRCF ) (the “ Company ” or “ GSP ”) announcespreliminary results of its recently completed NSAMT (natural-sourceaudio-frequency magneto-telluric) geophysical survey at the Alwin MineProperty.  The survey, the first property-wide geophysical survey innearly 20 years, provides further evidence for an underlying porphyrysource for the high-grade copper-gold-silver mineralization atAlwin.

The results of the 2025 NSAMT survey have confirmed and strengthened theidentification of an untested deep conductive anomaly within the northern portion of the Alwin Property.  Theanomaly is located 1.5 km northwest of the Alwin Deposit which hosts acurrent 34.6-million-pound inferred copper resource.  The conductiveanomaly extends from 600-1200 metres depth, having dimensions ofapproximately 600 x 750 metres, and 500-1000 Ohm-m resistivity( Figures 1 and 2 ).  This conductive anomaly is significant for explorationof undiscovered porphyry-style mineralization as it is situated alonga well-defined northwest trending sodic-calcic fluid pathway passingthrough the Company’s Mer Property, and southeast through the HVCBethsaida Zone, Lornex and Highmont deposits over 20 km 1 .

The presence of a deeper untested conductivity anomalyat Alwin is significant given that zones of reduced resistivity can beassociated with increased alteration, in particular porphyry-stylequartz-sericite-pyrite (phyllic) and clay (kaolinite) dominatedalteration (notably at Endako and in the Babine Porphyry district ofBC).  The range of observed resistivity of the Alwin anomaly isconsistent with those of quartz-sericite altered Endako quartzmonzonite 2 .

Limited historic drilling during 2008, immediatelysouth of the conductive anomaly, returned 9.7 metres grading 0.55% copper withindrill hole 08-06 3 , with mineralization described as being strongporphyry-style argillic-potassic alteration accompanied byquartz-chalcopyrite-bornite veins. No follow-up drilling of thistarget has been ever completed.  Two shallow drill holes completed in1969 tested well above the anomaly and did not return significantmineralization; however, drill logs noted numerous soft hematitetalc-kaolinite gouge zones with Bethsaida granodiorite host rocks,suggestive that the conductive anomaly at depth may represent alteredintrusive.

The NSAMT survey at the Alwin Mine comprised a total of10 east-west oriented survey lines for a total of approximately 15line-km.  The 2025 NSAMT survey was designed to explore the presence of deep seated conductive/resistive featuresbeneath the Property and the shallow Alwin Deposit Copper-Gold-Silveropen pit and underground resource.

Historic 3D induced polarization / resistivity (IP/Res)surveys completed at Alwin during 2007, though limited in their depthof investigation, reveal that the Alwin Deposit area is associatedwith a zone of higher resistivity and weakly chargeable rocks. Significantly, the 2007 survey identified a near surface conductiveanomaly extending to a survey limited depth of ~200 metres in thenorthern area of the Alwin Property flanked to the south by therelatively resistive and chargeable rocks.

Figure 1: Plan Mapof Alwin Project Conductive Anomaly and HVC Operations

Figure 2: AlwinModel Resistivity Oblique View Looking Southwest (500-1000 Ohm-mBlocks Shown)

Simon Dyakowski, CEO of GSPcommented , “The discovery of a deeper conductiveanomaly within the northern area of the Alwin Project is another clearsignal that the high-grade copper-silver-gold mineralization at theAlwin Deposit may be related to a porphyry source at depth.  TheProject’s location within the most important porphyry alterationfluid pathway corridors linking GSP’s Mer Project, Alwin Mine andHVC’s Bethsaida, Lornex and Highmont deposits further reinforces ourview of the compelling exploration upside at Alwin.”

About the Alwin Mine Project

The Alwin Mine Copper-Silver-Gold property isapproximately 344 hectares and is located on the semi-arid, interiorplateau in south-central British Columbia.  The historic undergroundmine was developed over 500 m long by 200 m wide by 300 m deep.Production took place between 1916 to 1981 from five major subverticalhigh-grade copper mineralization zones totaling 233,100 tonnes thatmilled 3,786 tonnes of copper, 2,729 kilograms of silver and 46.2kilograms of gold. The average diluted head grade was 1.5% copper.

The Alwin Project hostsa current inferred mineral resource comprising 1.46 million tonnes(Mt) tonnes, at an average grade of 1.08% Cu, yielding 34.6 millionpounds of Cu 4 .

The Alwin Project is adjacent with the western boundaryof Teck Resources’ Highland Valley Mine, the largest open-pitporphyry copper-molybdenum mine in western Canada.  Alteration andmineralization of the Highland Valley hydrothermal system extendswestward from the Highland Valley mine onto the Alwin Project (seeGSP’s news release dated January 30, 2020).

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 APEXGeoscience Ltd. of Edmonton, AB, a consultant to the Company and a“qualified person” as defined in National Instrument 43-101 — Standards of Disclosure forMineral Projects .

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 Mining Division, of whichit has granted an option to earn a 60% interest to a thirdparty .

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, completing ongoing and planned work, advancing the AlwinProject, the potential presence of porphyry copper mineralization orhigh-grade copper silver gold mineralization at the Alwin Project,further evaluation of copper gold and silver mineralization at theAlwin Project, other statements relating to the technical, financialand business prospects of the Company, its projects and othermatters . All statements inthis news release, other than statements of historical facts, thataddress events 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. Suchforward-looking information reflects the Company’s views withrespect to future events and is subject to risks, uncertainties andassumptions, including the risks anduncertainties relating to the interpretation of exploration results,risks related to the inherent uncertainty of exploration and costestimates and the potential for unexpected costs and expenses, and those filed under the Company’s profile onSEDAR+ at www.sedarplus.ca. Factors that couldcause actual results to differ materially from those in forwardlooking statements include, but are not limited to, continuedavailability of capital and financing and general economic, market orbusiness conditions, adverse weather or climate conditions, failure tomaintain all necessary government permits, approvals andauthorizations, 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 ofcounterparties to perform their contractual obligations. The Company does not undertake to update forward?lookingstatements or forward?looking information, except as required bylaw.

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

2 Mineralization hosted onother properties is not necessarily indicative of mineralization thatmay be hosted on the Alwin Project. Mitchinson and Enkin (2011)Continued investigation of physical property–geology relationshipsin porphyry deposit setting in the QUEST and QUEST-West Project Areas,Geoscience BC, Report 2011-1, p.17-32

3 True width of mineralization not known.

4 Independent NI 43-101Technical Report Alwin Copper-Silver Gold Project, with an effectivedate of September 16, 2024, and prepared by Apex Geoscience Ltd. isfiled under the GSP Resource Corp. Issuer Profile SEDAR+(www.sedarplus.com)

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