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Questcorp Mining Inc. (CSE: QQQ,OTC:QQCMF) (OTCQB: QQCMF) (FSE: D910) (the “Firm” or “Questcorp”) is happy to announce the completion of the primary part of drilling on the La Union gold and silver Venture in Sonora, Mexico. A complete of 12 diamond core holes have been accomplished for a complete of simply over 1,600 metres throughout six precedence targets. The work is being superior with funding by means of companion Questcorp Mining Inc. (“Questcorp”) underneath the choice settlement introduced earlier in 2025 with Riverside as Operator and managing the exploration program.
Program Highlights
- 12 core holes accomplished totaling >1,600 m.
- Six targets drilled: Union Mine, Union Norte, Cobre, Luis, Famosa, and Famosa Magazine.
- Three past-producing mine areas examined adjoining to historic workings to guage continuity.
- >700 half-core samples shipped; assays pending.
- Holes oriented as angle and near-vertical to chop stratigraphy and buildings typical of Carbonate Alternative Deposit-type (“CRD”) techniques, with focus beneath oxidized horizons usually <150 m depth.
“This primary exploration part achieved preliminary drill holes into 6 goal areas. We examined a number of shallow gold and base metals targets, confirmed the important thing carbonate host items acknowledged by historic mining at Union and Famosa, and gathered the structural and alteration information to additional progress environment friendly mineral exploration,” mentioned Dr. John-Mark Staude, President and CEO of Riverside Sources. “This traditionally mined CRD district, validated by new drilling and improved datasets, advances our geologic mannequin and helps the potential for a large-scale discovery. With six targets superior and greater than 700 samples on the lab, as soon as outcomes are obtained, we are going to scope the following exploration program and give attention to probably the most potential traits indicated by assay outcomes, stratigraphy, construction, and geophysics.”
Questcorp President & CEO mentioned, “We’re excited to have accomplished this primary part of drilling at La Union by means of the steering of the achieved Riverside technical crew and their subcontracted drillers. The corporate anxiously awaits the return of the assays from the lab as we glance to plan observe on growth.”
Drilling Replace by Space
Union Mine: Three holes on the Union Mine focused manto horizons and chimney/feeder buildings adjoining to historic underground workings. This reconnaissance drilling was designed to guage stratigraphy, alteration, and mineralization continuity typical of CRD techniques.
Famosa Mine Space: 4 core holes examined a west-dipping dolomite manto goal and adjoining buildings. Logging famous intrusive dikes and breccias; no geochronology has been accomplished. Historic small-scale mining left floor dumps reported with gold grades of >0.5 oz/t Au (>15 g/t) in an unbiased NI 43-101 report filed on SEDAR+, Could 7, 2025, by Questcorp. An inclined shaft dipping ~70° to the west parallels the favorable horizon. Holes have been drilled at angles towards the east to intersect the goal as near perpendicular as sensible and to guage continuity of alteration and mineralization.
Union Norte: Two preliminary holes examined the manto horizon inside dolomitic carbonate strata to guage continuity and geometry alongside favorable traits mapped close to historic workings. This part focused the westward extension. Observe-up work, together with doable step-outs to the east, will probably be thought of after assays and geological interpretation.
Cobre and Luis: Every goal was examined to evaluate fashion, construction, and controls on mineralization. Outcomes so far present sulfides, mineralization varieties, and intrusions aligned with a carbonate-hosted metals system.
Determine 1: Map of drill targets and core drill gap areas for the 12 holes of Section 1 program.
To view an enhanced model of this graphic, please go to:
https://photos.newsfilecorp.com/information/10197/274134_4d9025ab54bb8943_001full.jpg
Sampling and Assays
Core was logged, saw-cut, and half-core samples have been shipped for evaluation. Samples from the primary eight holes have been delivered to Bureau Veritas (Hermosillo, Sonora) for gold fireplace assay, with pulps forwarded to Vancouver, Canada for Inductively Coupled Plasma-Mass Spectrometry (“ICP-MS”) following four-acid digestion to find out silver, base metals, and pathfinders. Samples from the ultimate 4 holes have been shipped to ACT Labs Zacatecas, the place preparation, gold assay, and multi-element ICP are accomplished in Mexico. Remaining half-cores are retained for reference. The ultimate 4 holes of this system have been shipped to ACT Labs the place they have been equally assayed utilizing the identical processing strategies however with their preliminary preparation and assaying accomplished in Zacatecas, Mexico utilizing the identical ICP and gold fireplace assay strategies.
Subsequent Steps
After assays are obtained, the Firm plans to announce outcomes and start work to combine the total exploration outcomes together with the assays, core logging, geophysics, advance detailed multi-element geochemistry, and up to date structural mapping to refine the CRD mannequin and scope for a Section 2 exploration marketing campaign. The Section 2 marketing campaign will possible embody extra intensive drilling and different exploration work as this Section 1 was solely an preliminary sampling into among the targets at Union. This subsequent expanded drill program might happen in H1, 2026 as all permits and entry are in good standing and with the brand new information targets will probably be able to discover.
Certified Individual & QA/QC:
The scientific and technical information contained on this information launch pertaining to the Venture was reviewed and permitted by Freeman Smith, P.Geo, a non-independent certified individual to Riverside Sources Inc., who’s answerable for guaranteeing that the knowledge supplied on this information launch is correct and who acts as a “certified individual” underneath Nationwide Instrument 43-101 Requirements of Disclosure for Mineral Initiatives.
About Riverside Sources Inc.:
Riverside is a well-funded exploration firm pushed by worth technology and discovery. The Firm has a stable steadiness sheet with no debt and fewer than 75M shares excellent with a robust portfolio of gold-silver and copper belongings and royalties in North America. Riverside has intensive expertise and information working in Mexico and Canada and leverages its massive database to generate a portfolio of potential mineral properties. Riverside has properties obtainable for choice, with data obtainable on the Firm’s web site at www.rivres.com.
Certified Individual & QA/QC:
The technical content material of this information launch has been reviewed and permitted by R. Tim Henneberry’, P.Geo (BC) a Director of the Firm and a Certified Individual underneath Nationwide Instrument 43-101.
Rock samples from earlier exploration packages mentioned above on the Venture have been taken to the Bureau Veritas Laboratories in Hermosillo, Mexico for fireplace assaying for gold. The rejects remained with Bureau Veritas in Mexico whereas the pulps have been transported to Bureau Veritas laboratory in Vancouver, BC, Canada for 45 ingredient ICP/ES-MS evaluation utilizing 4-acid digestion strategies. A QA/QC program was applied as a part of the sampling procedures for the exploration program. Requirements have been randomly inserted into the pattern stream previous to being despatched to the laboratory.
About Questcorp Mining Inc.
Questcorp Mining is engaged within the enterprise of the acquisition and exploration of mineral properties in North America, with the target of finding and growing financial treasured and base metals properties of benefit. The corporate holds an choice to accumulate an undivided 100-per-cent curiosity in and to mineral claims totalling 1,168.09 hectares comprising the North Island copper property, on Vancouver Island, B.C., topic to a royalty obligation. The corporate additionally holds an choice to accumulate an undivided 100-per-cent curiosity in and to mineral claims totalling 2,520.2 hectares comprising the La Union challenge positioned in Sonora, Mexico, topic to a royalty obligation.
ON BEHALF OF THE BOARD OF DIRECTORS,
Saf Dhillon
President & CEO
Suite 550, 800 West Pender Avenue
Vancouver, British Columbia
V6C 2V6.
Sure statements on this information launch are forward-looking statements, which mirror the expectations of administration concerning completion of survey work on the North Island Copper challenge. Ahead-looking statements encompass statements that aren’t purely historic, together with any statements concerning beliefs, plans, expectations or intentions concerning the longer term. Such statements are topic to dangers and uncertainties which will trigger precise outcomes, efficiency or developments to vary materially from these contained within the statements. No assurance could be on condition that any of the occasions anticipated by the forward-looking statements will happen or, in the event that they do happen, what advantages the Firm will acquire from them. Besides as required by the securities disclosure legal guidelines and rules relevant to the Firm, the Firm undertakes no obligation to replace these forward-looking statements if administration’s beliefs, estimates or opinions, or different elements, ought to change.
To view the supply model of this press launch, please go to https://www.newsfilecorp.com/launch/274134
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