Riverside Resources and Questcorp Complete Geophysics Programs and Continue Drilling at La Union Project

Vancouver — Riverside Resources and partner Questcorp Mining announced on July 9, 2026 the completion of expanded aeromagnetic drone and induced polarization (IP) ground geophysics programs at the La Union project in Sonora, Mexico, and the integration of processed aeromagnetic data into the ongoing summer core drilling campaign targeting Union, Union North and Jabali. On July 9, 2026 companies reported that data processing is underway for IP results and that the geophysical datasets — including 248-line kilometres of drone magnetics and additional IP lines beyond 2025 coverage — will be applied this week to refine drill targets, expand identified targets, and guide potential strike- and depth-extension drilling.