Mr. Victor Cantore reports

AMEX GOLD MINING RETAINS CMAC-THYSSEN MINING GROUP FOR UNDERGROUND DEVELOPMENT OF PERRON BULK SAMPLE PROGRAM

Amex Gold Mining Inc. has retained CMAC-Thyssen Mining Group as the underground mining contractor for the company's 40,000-tonne bulk sample program at its wholly owned Perron gold project in northwestern Quebec.

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.

"Beyond executing the underground work, we recognize the importance of creating lasting benefits in the region. We are committed to working closely with local communities and the Abitibiwinni First Nation, maximizing local procurement opportunities wherever possible, and building a work force that includes local talent. We believe that successful mining projects are built not only on technical excellence and safety, but also on strong relationships and meaningful economic participation for the communities that host them.

"Safety will remain our highest priority. We are committed to delivering the Perron project through disciplined execution, pro-active risk management and a culture in which every employee returns home safely at the end of every shift."

CMAC was selected following a comprehensive competitive tender process involving several leading underground mining contractors. The evaluation considered technical capability, safety performance, project execution strategy, management experience, local presence, commercial competitiveness and the ability to support the company's development schedule.

Working under the supervision of Amex, CMAC will be responsible for all underground development and mining activities associated with the bulk sample program, including underground ramp development, mine services, ground support installation, production drilling and blasting, loading and hauling, and extraction of the planned 40,000-tonne bulk sample.

About Amex Gold Mining Inc.

Amex Gold has made significant high-grade gold discoveries, along with copper-rich volcanogenic massive sulphide zones, at its 100-per-cent-owned Perron gold project, located approximately 110 kilometres north of Rouyn-Noranda, Que. The Perron project in Quebec consists of 183 contiguous claims for a surface area of 65.72 square kilometres. The project hosts several zones of high-grade gold mineralization, VMS mineralization and hybrid gold-rich VMS mineralization.

When combined with the adjacent and contiguous Perron West project and Abbotsford and Hepburn projects (including additional claims acquired through staking) in Ontario, the consolidated land package spans a district-scale 570.94 square kilometres. This extensive property lies within highly prospective geology favourable for both high-grade gold and VMS mineralization.

The project benefits from excellent infrastructure: It is accessible by a year-round road, located just 30 minutes from an airport and approximately 6.5 kilometres from the town of Normetal. It is also in close proximity to several processing plants owned by major gold producers.

Qualified person and quality assurance/quality control

The technical information in this news release has been reviewed and approved by Aaron Stone, PGeo (OGQ -- 2170 and PGO -- 3708), vice-president, exploration, of the company.

We seek Safe Harbor.