ARIS MINING COMMENTS ON RECENT SHARE PRICE VOLATILITY

Rhea-AI Summary

Aris Mining (NYSE-A: ARMN) has addressed recent share price volatility and increased trading volumes, attributing it to Mubadala Investment Company's complete divestment of its 15.75 million common shares through a block trade on the Toronto Stock Exchange. The shares were sold to various institutional investors after becoming free-trading in late June 2025.

CEO Neil Woodyer highlighted that with both the expiry of exchange-traded warrants and completion of this block trade, two significant overhangs have been removed. The company expects to release the Pre-Feasibility Study results for Soto Norte in September 2025.

Positive

• Removal of two significant stock overhangs improving trading dynamics
• Broader and more diversified shareholder base following block trade
• Pre-Feasibility Study for Soto Norte project on track for September release

Negative

• Complete exit of major shareholder Mubadala Investment Company
• Recent share price volatility and increased trading volume

VANCOUVER, BC, Aug. 12, 2025 /PRNewswire/ - Aris Mining Corporation ("Aris Mining" or the "Company") (TSX: ARIS) (NYSE-A: ARMN) 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 ("Mubadala") 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 CEO, 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 Pre-Feasibility Study for Soto Norte and look forward to releasing the results in September."

About Aris Mining
Founded in September 2022, Aris Mining was established with a vision to build a leading Latin America-focused gold mining company. Our strategy blends current production and cashflow generation with transformational growth driven by expansions of our operating assets, exploration and development projects. Aris Mining intends to unlock value through scale and diversification. The Company is listed on the TSX (ARIS) and the NYSE-A (ARMN) and is led by an experienced team with a track 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 underway, 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 H2 2025, and the construction of the Bulk Mining Zone at the Marmato Complex, expected to start ramping up production in H2 2026. In addition, Aris Mining operates the 51% owned Soto Norte joint venture, where studies are underway on a new, smaller scale development plan, with results expected in Q3 2025. In Guyana, Aris Mining owns the Toroparu gold/copper project, where a new Preliminary Economic Assessment (PEA) is underway and its results are also expected in Q3 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, we enable safe, legal, and environmentally responsible operations that benefit both local communities and the industry.

Additional information on Aris Mining can be found at www.aris-mining.com, www.sedarplus.ca, and on www.sec.gov.

Forward-Looking Information

This news release contains "forward-looking information" or forward-looking statements" within the meaning of Canadian securities legislation. All statements included herein, other than statements of historical fact, including, without limitation, statements relating to the timeline for release of the Pre-Feasibility Study for Soto Norte and statements included in the "About Aris Mining" section of this news release relating to the Segovia Operations, Marmato Complex, Soto Norte Project and Toroparu Project are forward-looking. Generally, the forward-looking information and forward looking statements can be identified by the use of forward looking terminology such as "plans", "expects" or "does not expect", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not anticipate", "will continue" or "believes", or variations of such words and phrases or state that certain actions, events or results "may", "could", "would", "might" or "will be taken", "occur" or "be achieved". The material factors or assumptions used to develop forward looking information or statements are disclosed throughout this news release.

Forward looking information and forward looking statements, while based on management's best estimates and assumptions, are subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of Aris Mining to be materially different from those expressed or implied by such forward-looking information or forward looking statements, including but not limited to those factors discussed in the section entitled "Risk Factors" in Aris Mining's annual information form dated March 12, 2025 which is available on SEDAR+ at www.sedarplus.ca and included as part of the Company's Annual Report on Form 40-F, filed with the SEC at www.sec.gov.

Although Aris Mining has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking information and forward-looking statements, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such information or statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such information or statements. The Company has and continues to disclose in its Management's Discussion and Analysis and other publicly filed documents, changes to material factors or assumptions underlying the forward-looking information and forward-looking statements and to the validity of the information, in the period the changes occur. The forward-looking statements and forward-looking information are made as of the date hereof and Aris Mining disclaims any obligation to update any such factors or to publicly announce the result of any revisions to any of the forward-looking statements or forward-looking information contained herein to reflect future results. Accordingly, readers should not place undue reliance on forward-looking statements and information.

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SOURCE Aris Mining Corporation

FAQ

Why did Aris Mining (ARMN) stock experience volatility in August 2025?

The volatility was due to Mubadala Investment Company selling its entire stake of 15.75 million shares through a block trade on the Toronto Stock Exchange.

How many shares did Mubadala sell in Aris Mining (ARMN)?

Mubadala sold its entire shareholding of 15.75 million common shares to institutional investors through a block trade.

When will Aris Mining (ARMN) release the Soto Norte Pre-Feasibility Study?

Aris Mining plans to release the Soto Norte Pre-Feasibility Study results in September 2025.

What positive developments did Aris Mining (ARMN) CEO highlight in August 2025?

CEO Neil Woodyer highlighted the removal of two significant overhangs: the expiry of exchange-traded warrants and completion of Mubadala's block trade, resulting in a broader shareholder base.

When did Mubadala's shares in Aris Mining (ARMN) become free trading?

Mubadala's shares became free trading in late June 2025, following a one-year hold period after the Soto Norte transaction.