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Initial Test Work Demonstrates Good Silver Recovery, High Grade Concentrates and Low Arsenic, through conventional flotation methods, in Historic Peruvian Silver District Initial Test Work Demonstrates Good Silver Recovery, High Grade Concentrates and Low Arsenic, through conventional flotation methods, in Historic Peruvian Silver District

US$100,000 Advanced Royalty Payment Received; 2.5 Million Additional Magma Shares to Be Issued April 15, 2026 US$100,000 Advanced Royalty Payment Received; 2.5 Million Additional Magma Shares to Be Issued April 15, 2026

VANCOUVER, British Columbia , March 31, 2026 (GLOBE NEWSWIRE) -- Rio Silver Inc. (the "Company" or "Rio Silver") (TSX.V: RYO) (OTC: RYOOF) is pleased to announce that it has closed its non-brokered private placement (the “Offering”), previously announced on February 25, 2026, by issuing an aggregate of 8,571,429 units (the "Units") of the Company at a price of $0.35 per Unit for gross proceeds of $3,000,000.

Company Reaffirms Strongest Operational Position to Date as Key Development Milestones Advance Company Reaffirms Strongest Operational Position to Date as Key Development Milestones Advance

Local Community Support Advances Silver-Dominant Maria Norte Toward Access and Development Execution Local Community Support Advances Silver-Dominant Maria Norte Toward Access and Development Execution