Montreal, Quebec--(Newsfile Corp. - July 13, 2026) - Amex Gold Mining Inc. (TSXV: AMX) (FSE: MX0) (OTCQX: AMXEF) ("Amex" or the "Company") is pleased to announce that it has retained CMAC-Thyssen Mining Group ("CMAC") as the underground mining contractor for the Company's 40,000-tonne bulk sample program at its wholly-owned Perron Gold Project in northwestern Québec.
The appointment represents another important milestone in the advancement of the Perron Gold Project as the Company transitions from project preparation into underground development. Mobilization of CMAC's underground mining team is expected to commence in late July 2026, with initial underground development scheduled to begin shortly thereafter.
The underground bulk sample program is expected to provide valuable operational, technical and metallurgical information while confirming key assumptions incorporated into the feasibility study, validating mining methods, optimizing future mine planning and supporting the continued advancement of the Perron Project.
The Company also continues to advance the remaining infrastructure required for the bulk sample program, including electrical distribution, water management systems, surface facilities and contractor mobilization activities. Portal construction continues to progress according to plan, with the first portal blast expected in mid-July, followed by commencement of underground development.
Victor Cantore, President and Chief Executive Officer of Amex Gold Mining, commented:
"The appointment of CMAC represents another major milestone as Perron continues to transition from exploration toward development. Throughout our evaluation process, CMAC distinguished itself through its extensive underground mining experience, strong safety culture, technical capabilities and proven ability to execute complex underground projects efficiently.
Equally important, CMAC shares our commitment to working collaboratively with local communities and building a project that delivers long-term benefits to the region. As we continue advancing Perron, we are pleased to welcome an experienced partner that shares our values of safety, operational excellence and responsible project development."
Luc Guimond, President and Chief Executive Officer of CMAC-Thyssen Mining Group, commented:
"We are proud to have been selected by Amex as its mining partner for the Perron bulk sample program. Perron is an exciting high-grade gold project, and we appreciate the confidence Amex has placed in our team. Our focus will be on delivering the project safely, efficiently, and collaboratively while building a strong partnership with Amex and all project stakeholders.