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Western Exploration Files Amended NI 43-101 Technical Report for the AURA Gold Silver Project
Aura BiosciencesAura Biosciences(US:AURA) Newsfileยท2025-10-01 21:00

Core Insights - Western Exploration Inc. has filed an amended technical report for the Aura Gold-Silver Project, which includes a revised all-in sustaining cost for the "Base Case" from $1,152 to $1,172 per gold ounce, with no impact on capital costs or economic results [1][5]. Summary by Sections Technical Report Filing - The amended technical report, titled "Preliminary Economic Assessment of the Doby George Deposits and Updated Resource Estimate for the Gravel Creek Gold-Silver Deposits," was filed on SEDAR+ and is effective as of June 17, 2025 [2]. - This report supersedes all previous technical reports for the Aura Project, including the initial technical report dated June 17, 2025 [2]. Economic Assessment - The amended report confirms the economic assessment results from the initial technical report and the previous news releases, with no changes to the underlying inputs or economic outcomes [3][5]. - Key economic metrics for the Doby George 2025 PEA include: - Base Case Gold Price: $2,150 per ounce - Average Annual Operating Cash Flow: $63.3 million - Pre-Tax NCF: $132.4 million - Pre-Tax NPV5: $94.7 million - Pre-Tax IRR: 31.8% [4]. Project Costs - The project capital costs are detailed as follows: - Pre-Production Costs: $127.6 million - LOM Sustaining Costs: $10.5 million [6]. - Operating costs are summarized as: - Total LOM Operating Costs: $253.6 million - Per Tonne Processed: $22.24 [7]. Technical Information - The mineral resource estimate was prepared by qualified persons from RESPEC and KCA, ensuring compliance with NI 43-101 standards [8][9]. - The Aura Project includes three deposits: Doby George, Gravel Creek, and Wood Gulch, located approximately 120 kilometers north of Elko, Nevada [10].