Mr. Chris Verrico reports

RIO SILVER COMPLETES 100% ACQUISITION OF HIGH-GRADE MARIA NORTE SILVER PROJECT IN PERU'S HISTORIC HUACHOCOLPA DISTRICT

The TSX Venture Exchange has approved Rio Silver Inc.'s 100-per-cent acquisition of the Maria Norte silver-gold-lead project, located in the prolific Huachocolpa mining district, Huancavelica province, Peru.

Highlights

• Rio Silver now holds 100-per-cent ownership of the high-grade Maria Norte project in one of Peru's most storied silver-producing regions;
• National Instrument 43-101 technical report titled "Maria Norte Au-Ag-Pb-Zn Project" by James A. McCrea, PGeo, confirms verification sampling results with grades up to 6.26 grams per tonne Au (gold) and 991 g/t Ag (silver);
• Historical workings and waste-dump sampling demonstrate extensive, intact mineralization from past exploration by Compania de Minas Buenaventura SAA, one of South America's most successful mining companies;
• Low-capex, near-infrastructure opportunity with multiple processing facilities within 11 kilometres, supporting a fast-track path toward potential production;
• Builds on Rio Silver's royalty-backed financial foundation, creating a strong platform for district-scale expansion.

A new era for Maria Norte

"The Maria Norte acquisition represents a defining moment for Rio Silver," stated Chris Verrico, president and chief executive officer. "We are unlocking the potential of a high-grade system that was left untouched for decades when silver traded at $1.50 an ounce. Today, with prices nearly 40 times higher and the world's demand accelerating through AI, electronics and renewable technologies, the same mineralization now holds transformative potential. Maria Norte gives us a foundation not only to advance toward production but to build a broader silver platform within one of Peru's most legendary districts."

National Instrument 43-101 technical disclosure

A geological report prepared under National Instrument 43-101, "Maria Norte Au-Ag-Pb-Zn Project," authored by James A. McCrea, PGeo, has been approved for public release and will be available on Rio Silver's website.

Verification samples collected from surface outcrops and historic waste-dump material confirm high-grade silver-gold mineralization as shown in the attached table.

These data confirm the presence of a robust, multimetallic system with significant silver-gold potential across multiple veins within the property. Further mapping and underground sampling are planned to refine targets for subsequent drilling phases.

Why this matters to investors

Silver is in a structural global deficit demand from AI infrastructure, data centres, solar power and electric-vehicle production now far exceeds mine supply. Inventories are at multidecade lows, and institutional and retail bullion demand continue to surge. Maria Norte offers exposure to this trend through:

• District-scale discovery potential in a jurisdiction ranked among the world's top silver producers;
• Existing infrastructure and low-cost development pathway;
• 100-per-cent ownership with no underlying royalties on the property;
• Tight capital structure and insider alignment, maximizing leverage to exploration success and metal prices.

For investors seeking a focused, high-impact silver opportunity, Rio Silver represents an early stage entry into a project with near-term catalysts, a world-class geological team and strong geological context.

Qualified person

The scientific and technical information contained in this news release has been reviewed and approved by Jeffrey Reeder, PGeo, a qualified person as defined by National Instrument 43-101. Mr. Reeder acts as an independent adviser and consultant to Rio Silver.

About Rio Silver Inc.

Rio Silver is a Canadian resource company advancing high-grade, silver-dominant assets in Peru, the world's second-largest silver producer. The company is focused on near-term development opportunities within proven mineral belts, and is supported by a seasoned technical and operational team with deep experience in Peruvian geology, underground mining and district-scale exploration. With a clear development strategy, and a growing portfolio of highly prospective silver assets, Rio Silver is establishing the foundation to become one of Peru's next emerging silver producers.

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