CoTec Files Preliminary Economic Assessment and Technical Report for the Lac Jeannine Mine Tailings Reclamation and Restoration Project, Quebec, Canada

Executive Summary

• CoTec Holdings Corp. has filed an independent National Instrument 43-101 technical report containing a Mineral Resource Estimate and Preliminary Economic Assessment (PEA) for its Lac Jeannine Mine Tailings Reclamation and Restoration Project in Québec, Canada.
• The report, prepared by JPL GeoServices Inc., Soutex Inc., Amerston Consulting Ltd., and Axe Valley Mining Consultants Ltd., confirms there are no material differences between the filed PEA and the results previously announced in May 2026.
• The project focuses on re-processing tailings from the former Lac Jeannine open pit mine (active 1961–1976) for residual iron and rehabilitating the Tailings Storage Facility (TSF).

Key Details

• Report Title: "Mineral Resource Estimate, Preliminary Economic Assessment and NI 43-101 technical report for CoTec's Lac Jeannine Mine Tailings Reclamation and Restoration Project, Canada"
• Effective Date: March 23, 2026
• Filing Date: June 24, 2026
• Prepared By: JPL GeoServices Inc., Soutex Inc., Amerston Consulting Ltd., and Axe Valley Mining Consultants Ltd.
• Project Location: Lac Jeannine property, Caniapiscau regional county municipality (RCM), Côte-Nord Region, eastern Québec, Canada (approx. 8 km southeast of Gagnon, 290 km north of Baie-Comeau).
• Property Size: 31 mineral claims covering an aggregate of 1,649.34 hectares.
• Historical Context: The site was an open pit mine extracting approximately 260 million long tons of ore at 33% iron (mainly specular hematite) between 1961 and 1976. Facilities were shut down in 1984.
• Project Scope:
  • Re-processing tailings material for residual iron.
  • Rehabilitation of the Tailings Storage Facility (TSF) to as close to its natural state as possible.
• Regulatory Status: Identified by Québec's Ministry of Natural Resources and Forests (MRNF) as the largest abandoned mining site under government responsibility.
• Availability: Report available under the Company's profile on SEDAR+ and the Company's website.

Notable Quotes

• "The Company is not aware of any new information or data that materially affects the information included in the PEA Results Release and confirms that there are no material differences in the results of the preliminary economic assessment between the PEA and the PEA Results Release."