Questcorp Mining and Riverside Resources Commence Phase 2 Exploration Program at the La Union Project, Sonora, Mexico

Vancouver, British Columbia--(Newsfile Corp. - April 1, 2026) - Questcorp Mining Inc. (CSE: QQQ) (OTCQB: QQCMF) (FSE: D910) (the "Company" or "Questcorp") along with its partner Riverside Resources Inc. (TSXV: RRI) (OTCQB: RVSDF) (FSE: 5YY0) ("Riverside"), is pleased to announce the commencement of the Phase 2 exploration program at the La Union Project in Sonora, Mexico. The program builds on the success of the 12-hole Phase 1 drill program announced January 22 2026, which delivered two key results: a high-grade 30m chip-channel interval at the Union Mine grading 20.2 g/t gold and 226 g/t silver a new sediment-hosted gold discovery at Luis Hill returning 42m grading 0.3 g/t gold.