Mr. Neil Woodyer reports

ARIS MINING CONFIRMS INCIDENT AT AN EXTERNAL MINE PARTNER OPERATION AT SEGOVIA

Aris Mining Corp. has confirmed an incident that occurred on Sept. 22 at La Reliquia mine, a formalized third party operation located within Aris Mining's Segovia title, but outside of Aris Mining's infrastructure.

A collapse occurred in La Reliquia's main shaft access, with 23 workers underground at the time, including five Aris Mining employees carrying out monthly review functions. All workers are in good health, regular telephone communication has been maintained, and food, water and ventilation are being delivered safely while rescue work progresses.

Rescue operations are well advanced and being carried out through the co-ordinated efforts of Aris Mining's brigade of prevention and emergency control and La Reliquia's work force. Aris Mining's technical staff and contractors are supporting rescue efforts. The families of the company's employees have been informed directly and are being kept up to date throughout the process. Based on current progress, the company expects the workers to be brought safely to surface within the next 24 hours.

La Reliquia mine has been a partner of the Segovia operations since 2014 with about 60 employees and provides a small portion of mill feed that supports overall gold production.

Neil Woodyer, chief executive officer, commented: "The safety of our people is always our highest priority. We commend the Aris Mining rescue team for their professionalism and swift, precise response. We will provide updates as the situation is fully resolved."

About Aris Mining Corp.

Founded in September, 2022, Aris Mining was established with a vision to build a leading Latin America-focused gold mining company. Its strategy blends current production and cash flow generation with transformational growth driven by expansions of its operating assets, exploration and development projects. Aris Mining intends to unlock value through scale and diversification. The company is listed on the Toronto Stock Exchange (ARIS) and the NYSE American (ARMN) and is led by an experienced team with a record of value creation, operational excellence, financial discipline and good corporate governance in the gold mining industry.

Aris Mining operates two underground gold mines in Colombia: the Segovia operations and the Marmato complex, which together produced 210,955 ounces of gold in 2024. With expansions under way, Aris Mining is targeting an annual production rate of more than 500,000 ounces of gold, following the commissioning of the second mill at Segovia, completed in June and ramping up during second half 2025, and the construction of the bulk mining zone at the Marmato complex, expected to start ramping up production in second half 2026. In addition, Aris Mining operates the 51-per-cent-owned Soto Norte joint venture, where a prefeasibility study is complete on a new, smaller-scale development plan which confirms Soto Norte as a high-quality, long-life project with robust economics and industry-leading environmental and social design features. In Guyana, Aris Mining owns the Toroparu gold/copper project, where a new preliminary economic assessment is under way.

Colombia is rich in high-grade gold deposits, and Aris Mining is actively pursuing partnerships with the country's dynamic small-scale mining sector. With these partnerships, the company enables safe, legal and environmentally responsible operations that benefit both local communities and the industry.

We seek Safe Harbor.