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Riverside Resources and Questcorp Prepare Phase 2B Exploration Drill Program at La Union Project, Sonora

RVSDF
  • Riverside Resources Inc. announces that Phase 2B drilling at its La Union Project in Sonora is fully funded & planned to commence in November 2026.
  • Preparatory work including road access, logistics, & drill pad construction is underway following the end of the rainy season.
  • The program will utilize reverse circulation (RC) drilling to increase penetration rates & cost efficiency, addressing faulted ground encountered during Phase 2A core drilling.
  • Approximately 600 meters of RC drilling is planned across two holes: one targeting Luis Hill & one targeting the Union Mine.
  • The Luis Hill hole will test a sediment-hosted gold target & a 1 km IP chargeability anomaly that remains open along strike & at depth.
  • The Union Mine hole will follow up on a structure where channel sampling yielded 20.2 g/t Au, 226 g/t Ag, & 2.7% Zn over 30 meters.
  • Questcorp Mining Inc. funds the exploration under an option agreement while Riverside Resources Inc. acts as the operator.
  • Phase 2A results reported in September 2026 confirmed gold mineralization continuity at Union Mine, which Phase 2B will expand upon.
  • RC drilling performance will be evaluated to determine its viability for future larger programs at the Union site.
  • Julian Manco, P.Geo., reviewed & approved the technical data as a qualified person under National Instrument 43-101.
  • Riverside Resources holds a debt-free balance sheet with a portfolio of gold-silver & copper assets in North America.