Minaurum Engages SGS to Complete Mineral Resource Update on the Alamos Silver Project

About this update from Minaurum Silver Inc.

Vancouver, British Columbia--(Newsfile Corp. - July 14, 2026) - Minaurum Silver Inc. (TSXV: MGG) (OTCQX: MMRGF) ("Minaurum" or the "Company")  is pleased to announce it has engaged SGS Metallurgy and Consulting Geological Services ("SGS") to update the Company's mineral resource estimate on its high-grade Alamos Silver Project ("Alamos") in Sonora, Mexico. SGS has extensive experience in Mexico having completed resource estimates at Vizsla Silver's Panuco Project and Endeavour Silver's Pitarrilla Project, among others. "SGS is an industry leader in geological, mining, and metallurgical services, including the evaluation of mineral resources," stated Darrell Rader, President and CEO of Minaurum Silver. "Our project-management and resource-modelling team have had extensive experience working with SGS at SilverCrest's Las Chispas deposit, making this a natural and highly effective collaboration. We look forward to working with SGS as we complete the updated mineral resource estimate." In January 2026, Minaurum announced its inaugural mineral-resource estimate of 5.37 million tonnes containing 55.2 million ounces of silver equivalent ("AgEq") grading 320 g/t AgEq or 202 g/t silver, 0.21 g/t gold, 0.43% copper, 0.97% lead, and 2.01% zinc. The resource contains 34.8 million ounces of silver, 35,640 ounces of gold, 51.0 million pounds of copper, 115 million pounds of lead, and 238 million pounds of zinc (see news release dated January 28, 2026). The supporting NI43-101 technical report was filed on February 27, 2026, and included 104 drill holes, totaling 35,888.15 metres and 10,194 samples. Minaurum launched an aggressive 50,000-metre, six-rig core-drilling campaign in December 2025 as part of its ongoing resource-expansion program targeting the Europa, Promontorio , and Travesia vein zones and testing their extensions along strike and down plunge. The program also includes drilling at the Promontorio Sur and Europa Sur extensions, together with initial resource drill-testing of the Quintera and San Jose vein zones . To date, the Company has reported numerous high-grade intercepts from Quintera, Europa Sur, and San Jose (see Minaurum news releases dated February 10 and 26, March 31, May 27, and July 8, 2026). The updated mineral-resource estimate will incorporate new data from the core areas of the Europa, Promontorio , and Travesia vein zones, as well as additional vein zones including Europa Sur, Quintera and San Jose , thereby expanding the scope of the previous historical estimate which is expected later in 2026.

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