Blackrock Silver Announces Filing of Tonopah West Updated Preliminary Economic Assessment Technical Report

Blackrock Silver Corp. filed an independent technical report on SEDAR+ regarding the updated Preliminary Economic Assessment (PEA) for its 100%-owned Tonopah West silver-gold project in Nevada. The filing supports results previously disclosed by the Company in its March 31, 2026 news release. There are no material differences between the information contained in this new Technical Report and the previous disclosure from March 31, 2026. The report is prepared in accordance with NI 43-101 standards and covers an NPV5% of US$437 million and IRR of 28%.

The market has already priced in the fundamental value of this project based on the March 31, 2026 PEA announcement which was rated "Material - Positive". The May 13 filing is a regulatory compliance step confirming that the technical report aligns with the previously disclosed economic metrics. As there are no material differences or new data points introduced in this release compared to the March disclosure, the news does not provide fresh catalyst for valuation expansion. It serves as validation rather than innovation. Consequently, the impact on stock price is expected to be neutral, as the upside potential was captured during the initial PEA announcement and subsequent financing events (Eric Sprott investment).

Blackrock Silver Corp. positions itself as "America's emerging primary silver developer" focusing on high-grade underground projects in Nevada. The flagship asset is Tonopah West, located in Nye and Esmeralda Counties, Nevada. It is a 100%-owned silver-gold project with an updated PEA indicating an 11.2-year mine life. The project utilizes long-hole stoping (88% of tonnes) with average annual production of 7.1 million AgEq ounces at an AISC of US$17.44 per ounce. The company also holds the Silver Cloud exploration project adjacent to Hecla's Hollister Mine.