Mr. Saf Dhillon of Questcorp reports

QUESTCORP MINING ANNOUNCES COMMENCEMENT OF PHASE 1 WORK AT THE LA UNION GOLD PROJECT

Questcorp Mining Inc. has commenced the first-phase work program at its La Union carbonate replacement deposit (CRD) project, located in Sonora, Mexico. Questcorp is earning a 100-per-cent interest from Riverside Resources Inc. in the 2,520-hectare (25-square-kilometre) property by making a series of cash payments and share issuance and completing a series of exploration expenditures.

The initial stages of phase 1 will concentrate on finalizing the location of drill targets and drill pads for the coming drill program. Field activities are under way and include:

• Establishment of five to six one-kilometre picket lines for IP (induced polarization) surveying, which commenced on Monday; the IP lines are being run over the heart of some of the past mining areas, which continue to be known expansive target areas to help evaluate further potential, possible most favourable zones and assist to model the larger context for the coming drill holes; this work further derisks the coming first-pass drill holes;
• Sampling of limestone and dolomite host rocks across the mineralization from country rock through to the heart of mineralization for black light analysis and alteration vector modelling; the objective is to use the changes or variance in fluorescence to map alteration patterns to vector into the heart of the manto and chimney plumbing systems;
• Geological mapping of drill collar sites and section lines, particularly along the surface of the IP lines, to help develop the most accurate interpretations of the IP data for drill hole planning;
• Rock and soil sampling of peripheral areas to identify additional targets, including study of the stratigraphy for understanding and context with the many mineralization showings on the large district holding.

"We are extremely pleased to initiate the fully funded first phase work program at La Union," commented Questcorp president and chief executive officer Saf Dhillon. "We are first concentrating on derisking the upcoming 1,500-metre drill program scheduled for mid- to late Q3 through alteration mapping and IP geophysics," he continued. "Under the technical expertise of John-Mark Staude and the Riverside team, we are confident we are maximizing every exploration dollar being invested at La Union," he concluded.

Riverside Resources Inc. president and chief executive officer John-Mark Staude stated: "The work program is going well; I have been in the field this past week with the exploration team and pleased to see the safe, high-quality focus of good work and diving into careful review of the planned drill sites and now the IP program is under way. It is great to work with Saf, Tim and the entire Questcorp organization."

The La Union project

The La Union project is a carbonate replacement deposit project hosted by Neoproterozoic sedimentary rocks (limestones, dolomites and siliciclastic sediments) overlying crystalline Paleoproterozoic rocks of the Caborca terrane. The structural setting features high-angle normal faults and low-to-medium-angle thrust faults that sometimes served as mineralization conduits. Mineralization occurs as polymetallic veins, replacement zones (mantos and chimneys) and shear zones with high-grade metal content, as shown in highlight grades of 59.4 grams per metric tonne gold, 833 grams per tonne silver, 11 per cent zinc, 5.5 per cent lead and 2.2 per cent copper, along with significant hematite and manganese oxides, consistent with a CRD model (see the technical report entitled "NI 43-101 Technical Report on the Union Project, State of Sonora, Mexico," dated effective May 6, 2025, available under Questcorp's SEDAR+ profile). These targets also demonstrate intriguing potential for large gold discoveries potentially above an even larger porphyry copper district potential as the company's target concept at this time.

Questcorp cautions investors that grab samples are selective by nature and not necessarily indicative of similar mineralization on the property.

Riverside, the operator of the La Union project, is currently lining up the various geophysical contractors to immediately undertake orientation surveys and follow-up detailed surveys to confirm and enhance the drill targets.

The technical and scientific information in this news release has been reviewed and approved by R. Tim Henneberry, PGeo (British Columbia), a director of the company and a qualified person under National Instrument 43-101, Standards of Disclosure for Mineral Projects.

About Questcorp Mining Inc.

Questcorp Mining is engaged in the business of the acquisition and exploration of mineral properties in North America, with the objective of locating and developing economic precious metal and base metal properties of merit. The company holds an option to acquire an undivided 100-per-cent interest in and to mineral claims totalling 1,168.09 hectares comprising the North Island copper property, on Vancouver Island, B.C., subject to a royalty obligation. The company also holds an option to acquire an undivided 100-per-cent interest in and to mineral claims totalling 2,520.2 hectares comprising the La Union project, located in Sonora, Mexico, subject to a royalty obligation.

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