McEwen Mining Refiles Fox Complex Technical Report Following Regulatory Review

McEwen Inc. has amended and refiled its technical report on the Fox Complex mineral resources following a review by the Ontario Securities Commission. The company, which trades on both the New York Stock Exchange and Toronto Stock Exchange under the symbol MUX, updated its "NI 43-101 Technical Report on the Mineral Resources Estimate of the Fox Complex, Ontario, Canada" to address regulatory requirements identified through the OSC's continuous disclosure program.

The original report, filed on April 4, 2025, now includes additional information mandated under Items 16 to 22 of Form 43-101F1 for advanced properties. These requirements typically cover detailed technical information about mineral resource estimates, mining methods, processing methods, infrastructure, market studies, and environmental considerations. The updated filing also replaces John Ryan Cox as a co-author to ensure full compliance with Qualified Person requirements under National Instrument 43-101 standards.

Importantly, the company emphasized that no other changes were made to the technical report, and the Mineral Resources statements for the Fox Complex remain completely unchanged. This clarification is significant for investors and stakeholders who rely on consistent resource reporting for valuation and planning purposes. The full details of the amended filing are available through the company's official disclosure channels at https://ibn.fm/7Ujah.

For investors following McEwen Mining, this regulatory compliance action demonstrates the company's commitment to transparent and accurate reporting standards. The Fox Complex represents one of several mining assets in McEwen's portfolio, which includes operational mines in the United States, Canada, and Argentina, along with development projects and care-and-maintenance operations. The company's broader strategy includes developing its Los Azules copper project in Argentina with ambitious environmental goals, targeting carbon neutrality by 2038 and aiming to become one of the world's first regenerative copper mines.

The regulatory review process conducted by the Ontario Securities Commission represents standard practice in the mining industry, where technical reports require rigorous scrutiny to ensure they meet established standards for disclosure and professional competence. Such reviews help maintain market integrity by ensuring that investors receive consistent, comparable, and reliable information about mineral resource estimates. The fact that only compliance-related changes were needed, without altering the fundamental resource estimates, provides confidence in the original technical work underlying the Fox Complex assessment.

This development matters to industry participants and investors because it underscores the importance of regulatory compliance in resource reporting while maintaining the integrity of mineral resource estimates. The mining sector relies heavily on accurate technical reporting for investment decisions, project financing, and strategic planning. Companies that proactively address regulatory requirements help maintain investor confidence and contribute to the overall credibility of mineral resource disclosures across the industry.