Mr. Victor Cantore reports

AMEX GOLD MINING ADVANCES BULK SAMPLE CONSTRUCTION

Amex Gold Mining Inc. has provided an update on continuing construction and development activities related to the 40,000-tonne underground bulk sample program at its wholly owned Perron gold project located in the Abitibi region of Quebec.

Construction activities across the site are progressing steadily. Multiple infrastructure pads have now been completed or are nearing completion, providing the foundation for key operational facilities required to support the bulk sample program. Temporary office facilities, site services and supporting infrastructure are also being installed as mobilization activities accelerate.

The water treatment plant has arrived on site and installation activities are under way. The water treatment plant represents a key component of the project's environmental management strategy and has been designed to support responsible water handling throughout the execution of the bulk sample program. Commissioning activities are expected to take place over the coming weeks.

In addition, Amex has selected the contractor that will be responsible for the construction of the underground portal, representing another key milestone. Mobilization activities are currently under way, with construction of the portal planned to commence during the week of July 6, 2026. The portal will provide the initial access required for underground development and execution of the 40,000-tonne bulk sample program.

Following a competitive tender process involving three qualified mining contractors, Amex has completed its technical, commercial and operational evaluation. The company is currently engaged in contract negotiations with its preferred contractor and expects to provide further details once negotiations are finalized. Mobilization of the underground mining contractor remains planned for late July, 2026, supporting the company's development schedule for the bulk sample program.

In parallel, work associated with the project's permanent electrical infrastructure continues to advance. Connection to Hydro-Quebec's hydroelectric grid infrastructure is anticipated later in 2026/early 2027 and is expected to significantly reduce the project's environmental footprint while supporting future development activities.

Recruitment and contractor mobilization activities are also progressing, with several key personnel and service providers now engaged to support site construction, environmental management, and future underground operations.

Victor Cantore, president and chief executive officer of Amex Gold Mining, commented: "The arrival of the water treatment plant and the selection of the portal contractor represent important milestones for the Perron bulk sample program. Over the past several months, our team has been focused on systematically developing the infrastructure required to safely and responsibly execute the project. With major site preparations progressing, portal construction expected to begin in early July and key infrastructure now arriving on site, Perron continues to advance toward the next stage of development."

The Perron bulk sample program will involve the development, mining and processing of approximately 40,000 tonnes of material from the Champagne zone, and is expected to provide valuable technical, operational and economic information to support future project development decisions.

Qualified person and QA/QC (quality assurance/quality control)

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

About Amex Gold Mining Inc.

Amex Gold Mining has made significant high-grade gold discoveries, along with copper-rich volcanogenic massive sulphide (VMS) 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 km. 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 km from the town of Normetal. It is also in close proximity to several processing plants owned by major gold producers.

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