Rio Silver Highlights High-Grade Silver up to 6.26 g/t Au and 991 g/t Ag (28.9 oz per metric tonne) over 0.70 metres at Maria Norte and Advances a Clear Near-Term Development Path in Peru

VANCOUVER, British Columbia, Jan. 06, 2026 (GLOBE NEWSWIRE) -- Rio Silver Inc. (TSX-V: RYO | OTC: RYOOF) (“Rio Silver” or the “Company”) is pleased to provide an update on its Maria Norte gold-silver-lead-zinc Project in central Peru, following the completion of recent technical work and site activities conducted in accordance with National Instrument 43-101. The results confirm the presence of high-grade silver mineralization, favorable geological and metallurgical characteristics, and a clear pathway toward near-term development within one of Peru’s most prolific silver districts.