Questcorp and Riverside Make New Gold Discovery in Initial Drill Results from Luis Hill and Famosa Targets at Union Project, Sonora, Mexico

Executive Summary

• Questcorp Mining and partner Riverside Resources announced a new Carlin‑like gold discovery at the Luis Hill target (42 m @ ~0.3 g/t Au) within the La Union Project, Sonora, Mexico.
• Phase I H2 2025 program completed 12 core holes (≈1,600 m) across six targets, delivering multiple intercepts including a 1.85 m @ 0.345 g/t Au interval at Famosa Mine.
• The companies will move to Phase II (H1 2026) with additional drilling, geophysics, and mapping, leveraging the new data to target further discoveries in the Sonora Gold Belt.

Key Details

• Luis Hill Discovery: Hole UND25‑009 intersected 42.7 m @ 0.286 g/t Au (shale‑hosted, silicification, CRD style). Full assay interval includes 23 sub‑intervals ranging from 0.005 to 1.31 g/t Au; 15 intervals >0.1 g/t and three >0.5 g/t.
• Famosa Mine Intercept: Hole UND25‑005 returned 1.85 m @ 0.345 g/t Au starting at 39 m within a west‑dipping dolomite manto target. Additional holes (UND25‑004, ‑011, ‑012) tested CRD mineralization with variable results.
• Overall Phase I Drill Program: 12 core holes, total depth ≈1,625 m across Luis Hill, Famosa, Union, Union Norte, Cobre, and Famosa EM targets.
• Assay Status: >700 half‑core samples shipped; assays pending for Union, Union North, and Cobre targets.
• Geological Model: Program modeled after South 32 Taylor deposit (AZ). Findings include gold, zinc, and silver indications consistent with vectors toward a major discovery.
• QA/QC: Standards every 20 samples, blanks every 100; duplicate checks performed; all standards within ±2 SD. Labs used: Bureau Veritas (Hermosillo) for first eight holes, ACT Labs (Zacatecas) for final four.
• Future Work (Phase II – H1 2026): Planned follow‑up drilling at Luis Hill and other targets, plus geophysical surveys, geochemistry, and detailed mapping. Permits and access confirmed as in good standing.
• Option Agreement: Questcorp holds an option to earn 100 % of the Union Project; Riverside currently owns 9.9 % of Questcorp with a future increase to 19.9 % upon earn‑in plus a 2.5 % NSR.

Notable Quotes

• Saf Dhillon, President & CEO: “We are incredibly pleased… 2026 could be an inflection point for the success and growth of both Questcorp and Riverside!”
• John‑Mark Staude, Riverside CEO: “The first six drill holes are exciting and set up for the next news release… Luis Hill is an exciting start finding a new western area that has scale.”