Mr. Guy Le Bel reports

XXIX ADVANCES OPEMISKA DEVELOPMENT WITH LAUNCH OF ENVIRONMENTAL AND SOCIAL BASELINE STUDIES

XXIX Metal Corp. has engaged GCM Enviro Synergies to initiate baseline environmental and social studies at the company's Opemiska project, located near Chapais, Que. The work marks an important step in advancing the project along its development and permitting timeline.

Highlights:

• GCM Enviro Synergies engaged to initiate baseline environmental and social assessment work at Opemiska;
• Program designed to support future permitting, engineering and project development activities;
• Baseline work includes water, soil, wildlife, vegetation, land use and socioeconomic studies;
• Field programs expected to commence in the coming weeks as XXIX advances Opemiska toward a prefeasibility study.

The baseline assessment program is intended to establish the environmental and social data sets required to support future regulatory submissions, engineering studies and project planning activities. The work will include water and soil characterization, wildlife and vegetation surveys, land use and traditional use mapping, as well as socioeconomic baseline studies.

The information gathered through these programs will help guide responsible project development, support environmental management planning, and inform future technical and permitting milestones as the company continues to advance Opemiska.

"Advancing Opemiska responsibly requires a strong understanding of both the environmental setting and the communities connected to the region," said Guy Le Bel, chief executive officer of XXIX Metal. "Initiating these baseline studies is an important step in derisking the project, and establishing the foundation needed to support future engineering, permitting and development activities."

Fieldwork is expected to commence in the coming weeks and continue throughout the upcoming field season. The company anticipates that the data collected will support future environmental studies, permitting processes and continuing project optimization efforts.

The Opemiska project remains one of the company's core development assets and benefits from strong regional infrastructure, including road access, hydroelectric power, rail access and proximity to the Horne Smelter. XXIX continues to advance the project following the completion of the preliminary economic assessment announced in October, 2025.

About XXIX Metal Corp .

XXIX is advancing its Opemiska and Thierry copper projects, two significant Canadian copper assets. The Opemiska project, one of Canada's highest-grade open pitable copper deposits, spans 21,333 hectares in Quebec's Chapais-Chibougamau region, with strong infrastructure and nearby access to the Horne Smelter. An October, 2025, preliminary economic assessment outlined a 12,500-tonne-per-day open pit operation over a 17-year mine life, generating an after-tax NPV 8 per cent (net present value, 8-per-cent discount rate) of $505-million, IRR (internal rate of return) of 27.2 per cent and a 2.3-year payback period ($4.35/pound copper price, $3,000/ounce gold price, $30/oz silver price). The Thierry project hosts the K1 (near-surface) and the past-producing K2 (underground and surface) zones (see XXIX news release dated Oct. 1, 2024, for details regarding resources). Thierry has significant infrastructure in place including an all-season road, an airport within five kilometres, a provincial power grid within eight km and nearby rail. With these two high-potential projects, the company has solidified its position as a key player in the Canadian copper sector and has established itself as one of Eastern Canada's largest copper developers.

QP statement

The technical information contained in this news release has been reviewed and approved by Denis McNichols, PGeo, and geo, vice-president, exploration, for XXIX Metal, a qualified person, as defined in National Instrument 43-101 -- Standards of Disclosure for Mineral Projects.

We seek Safe Harbor.