Silver-Dominant Maria Norte Project in Peru to Be Featured at PDAC 2026 Mining Convention as Company Advances Development StrategyVANCOUVER, British Columbia, Feb. 24, 2026 (GLOBE NEWSWIRE) -- Rio Silver Inc. (“Rio Silver” or the “Company”) (TSX-V: RYO | OTC: RYOOF) is pleased to invite current and prospective investors to meet with management at the Prospectors & Developers Association of Canada (PDAC) Convention 2026, the foremost global mining and mineral exploration conference. The PDAC Convention 2026 ...

Core Viewpoint - Rio Silver Inc. is providing geological and operational context for its Maria Norte Project, highlighting its location within a mineralized corridor adjacent to the Tangana Mining Unit operated by Silver X Mining Corp [1][2]. District Context and Structural Setting - The Maria Norte Project contains multiple mapped mineralized structures, including the Castor, Maria, Pamela, and Jess Veins, along with approximately 500 meters of the Las Animas vein set, which is also present in SilverX's West Tangana area [3]. - Mineralized exposures at Maria Norte extend up to approximately 1,000 meters, showing elevated silver and gold values, with lesser lead and zinc, indicating a silver-dominant vein system [4]. Historical Context - The Tangana area historically operated as a lead-zinc mining camp from 1960 to 1975, extracting approximately 234,098 tonnes from four principal vein sets over a horizontal extent of about 2.5 kilometers and a vertical range of approximately 960 meters [4]. - Evidence of a historic tunnel or adit of approximately 400 meters at Maria Norte is supported by a reclaimed waste dump, with a sample returning 12.7 ounces per tonne silver and 2.194 g/t gold [5]. Economic Study Disclosure - Rio Silver controls a portion of the Tangana West vein system but has not completed any economic study on this portion. Silver X Mining Corp. has completed a NI 43-101-compliant Preliminary Economic Assessment for its Tangana Mining Unit, referenced for geological context [6][10]. Exploration and Development Opportunity - Maria Norte has been held for approximately 18 years with limited exploration activity, primarily surface mapping and selective sampling. The Company plans to advance systematic surface mapping and sampling during the Q3 2026 dry season [9]. - The project offers exposure to a silver-dominant mineralized system within an established mining district, with potential for meaningful upside as Rio Silver advances exploration and development [12]. Management Commentary - The CEO of Rio Silver emphasized the compelling geological framework of Maria Norte and the potential for high-impact development targets, noting that previously overlooked material may warrant a different assessment in the current price environment [11]. Moving Ahead - The Company's near-term focus includes finalizing community access agreements, completing access and portal preparation, securing necessary permits, initiating adit development, and advancing metallurgical and technical studies [16].