--- title: "Blackrock Silver Announces Filing of Tonopah West Updated Preliminary Economic Assessment Technical Report | BKRRF Stock News" type: "News" locale: "en" url: "https://longbridge.com/en/news/286228504.md" description: "Blackrock Silver Corp. has filed an independent technical report for its Tonopah West silver-gold project, effective March 25, 2026, and dated May 12, 2026. The report, compliant with NI 43-101 standards, supports the preliminary economic assessment results announced on March 31, 2026. There are no material differences from the previous disclosure. Blackrock aims to establish a secure domestic supply of silver and gold, backed by an experienced team in a top mining region." datetime: "2026-05-13T01:00:00.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/286228504.md) - [en](https://longbridge.com/en/news/286228504.md) - [zh-HK](https://longbridge.com/zh-HK/news/286228504.md) --- # Blackrock Silver Announces Filing of Tonopah West Updated Preliminary Economic Assessment Technical Report | BKRRF Stock News Vancouver, British Columbia--(Newsfile Corp. - May 13, 2026) - **Blackrock Silver Corp. (TSXV: BRC) (OTCQX: BKRRF) (FSE: AHZ0)** (the "**Company**" or "**Blackrock**") is pleased to announce that it has filed on SEDAR+ an independent technical report titled "Updated Preliminary Economic Assessment of Mineral Resource Estimate - Tonopah West Silver-Gold Project, Nye and Esmeralda Counties, Nevada, USA" effective March 25, 2026 and dated May 12, 2026 (the "**Technical Report**") for the Company's 100%-owned Tonopah West silver-gold project ("**Tonopah West**"). The Technical Report was prepared in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum Definition Standards for Mineral Resources and Mineral Reserves adopted May 19, 2014, and in accordance with National Instrument 43-101 – _Standards of Disclosure for Mineral Projects_ ("**NI 43-101**") and supports the disclosure made by the Company in its March 31, 2026 news release announcing the results of a preliminary economic assessment for Tonopah West. There are no material differences in the Technical Report from the information disclosed in the March 31, 2026 news release. The Technical Report is available under the Company's profile on SEDAR+ (www.sedarplus.ca). A copy of the Technical Report is also located on the Company's website. **About Blackrock Silver Corp.** **Blackrock Silver Corp.** is an American-focused emerging primary silver developer systematically advancing the high-grade Tonopah West Project, situated in the historic "Queen of the Silver Camps" in a jurisdiction consistently ranked as one of the top mining regions globally. The Company is backstopped by a veteran board and technical team with a proven track record of discovering, financing, and building major precious metal mines in Nevada and globally. Blackrock is committed to establishing a secure, high-margin, domestic supply of silver and gold. Additional information on Blackrock Silver Corp. can be found on its website at www.blackrocksilver.com and by reviewing its profile on SEDAR+ at www.sedarplus.ca. _Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release._ To view the source version of this press release, please visit https://www.newsfilecorp.com/release/297264 ### Related Stocks - [MAG.US](https://longbridge.com/en/quote/MAG.US.md) ## Related News & Research - [ONWARD Medical to Announce First Quarter 2026 Results on May 26, 2026 | ONWRY Stock News](https://longbridge.com/en/news/286858298.md) - [Golden Sky Minerals Consolidates Full Ownership of Rayfield Ground within Rayfield-Gjoll Project | LCKYF Stock News](https://longbridge.com/en/news/286937838.md) - [American Pacific Mining Commences Field Reconnaissance and Sampling Program at the Red Hill Gold Project, Nevada | USGDF Stock News](https://longbridge.com/en/news/286869356.md) - [Greenland Mines delays quarterly SEC filing](https://longbridge.com/en/news/286596535.md) - [Correction: NextNRG to Host First Quarter 2026 Financial Results Conference Call on May 18, 2026 at 9:00 a.m. ET | NXXT Stock News](https://longbridge.com/en/news/286673001.md)