Mr. Neil Woodyer reports

ARIS MINING COMMENTS ON RECENT SHARE PRICE VOLATILITY

Aris Mining Corp. is aware of recent volatility in its share price and increased trading volumes. The company understands that this activity relates to a secondary sale by Mubadala Investment Company PJSC of its entire shareholding in Aris Mining, comprising 15.75 million common shares.

The transaction was completed between Mubadala and a broad base of institutional investors by way of a block trade through the facilities of the Toronto Stock Exchange.

Neil Woodyer, Aris Mining's chief executive officer, commented: "Mubadala's Aris Mining shares became free trading in late June, 2025, following the one-year hold period after the Soto Norte transaction. With the recent expiry of our exchange-traded warrants and the completion of this block trade, two significant overhangs have been removed, resulting in a broader and more diversified shareholder base. We continue to advance the prefeasibility study for Soto Norte and look forward to releasing the results in September."

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 and the NYSE American, 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 studies are under way on a new, smaller-scale development plan, with results expected in third quarter 2025. In Guyana, Aris Mining owns the Toroparu gold/copper project, where a new preliminary economic assessment is under way, and its results are also expected in third quarter 2025.

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, it enables safe, legal and environmentally responsible operations that benefit both local communities and the industry.

We seek Safe Harbor.