Blackrock Silver receives Tonopah air quality permit

Executive Summary

• Blackrock Silver Corp. has received the first of three key permits for its Tonopah West project in Nevada: a Class II air quality and surface disturbance permit from the Nevada Department of Environmental Protection (NDEP).
• The permit allows for the disturbance of up to 150 acres at the project site, contingent on dust control measures, with a five-year term subject to extension and modification as the project advances toward exploration decline, test mining, and bulk sample extraction.
• The company anticipates receiving all required permits by mid-2027, after which it will determine the timing to commence exploration decline, test mining, and bulk sample extraction programs.

Key Details

• Permit Issued: Class II air quality and surface disturbance permit from the NDEP Bureau of Air Pollution Control.
• Project Location: Tonopah West mineral project, located along the Walker Lane trend in Nye and Esmeralda counties, Nevada.
• Authorized Disturbance: Up to 150 acres (60.7 hectares).
• Permit Conditions: Requires appropriate dust control measures and a continuing program using best practical methods to prevent particulate matter from becoming airborne.
• Permit Term: Five years, which can be extended and modified as the project moves toward permitting and construction of the proposed exploration decline, test mining, and bulk sample extraction programs.
• Hydrogeological & Geochemical Programs: Data collection is ongoing to form the basis for the water pollution control permit.
• Acid-Generating Potential Testing: Five humidity cells are currently in process to review the acid-generating potential of waste and mineralized lithologies encountered during tunnelling and construction of the exploration decline, including stockpiles for mineralized material from the bulk sample program.
• Groundwater Dynamics: The hydrogeological program aims to understand potential flow and volumes to support management and disposal during the test mining and bulk sample phase.
• Engineering Designs: Waste dump, stockpiles, and portal entry engineering designs are on schedule and will be used to calculate surface disturbance for the modification to the Nevada reclamation permit.
• Permitting Timeline: The permitting process is on schedule, with all permits anticipated by mid-2027.
• Next Steps: Once all permits are secured, the company will decide when to commence exploration decline, test mining, and bulk sample extraction programs.
• Qualified Person: William Howald, Executive Chairman and AIPG certified professional geologist (No. 11041), has reviewed and approved the contents of the release under National Instrument 43-101.

Notable Quotes

• "The permitting process is on schedule, with all permits anticipated by mid-2027. Once all permits are in hand, the company will decide when to commence with the exploration decline, test mining and bulk sample extraction programs at Tonopah West."