ARIS MINING ANNOUNCES APPOINTMENT OF BRIGITTE BAPTISTE TO THE BOARD

Rhea-AI Summary

Aris Mining (NYSE-A: ARMN) announced on October 30, 2025 the immediate appointment of Brigitte Baptiste to its Board of Directors. Ms. Baptiste is a Colombian environmental leader, biologist, and academic who currently serves as Rector of Universidad Ean in Bogotá and is a former Director of the Alexander von Humboldt Institute for Research on Biological Resources.

She also serves on international advisory panels on climate action and sustainability and has a record of engagement with environmental and social issues across Latin America. The company said her expertise will support Aris Mining's focus on responsible mining and sustainable growth in Colombia and Guyana.

VANCOUVER, BC, Oct. 30, 2025 /PRNewswire/ - Aris Mining Corporation (Aris Mining or the Company) (TSX: ARIS) (NYSE-A: ARMN) announces the appointment of Brigitte Baptiste to its Board of Directors, effective immediately.

Ms. Baptiste is a prominent Colombian environmental leader, biologist, and academic, recognized internationally for her contributions to biodiversity conservation, sustainable development, and inclusion. She currently serves as Rector of Universidad Ean in Bogotá and is a former Director of the Alexander von Humboldt Institute for Research on Biological Resources, Colombia's national biodiversity research center. Ms. Baptiste is also a member of several international advisory panels focused on climate action and sustainability and brings a strong record of engagement with environmental and social issues across Latin America.

Ian Telfer, Chair of the Aris Mining Board, commented: "We are honoured to welcome Brigitte to our Board. Her deep expertise in environmental science, biodiversity management, and inclusive leadership will further strengthen Aris Mining's commitment to responsible mining and sustainable growth in Colombia and Guyana."

About Aris Mining

Founded in September 2022, Aris Mining was established with a vision to build a leading South 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 a PFS 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 project, where the new PEA is complete and a PFS is underway.

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 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

Who is Brigitte Baptiste and what role was announced for ARMN on October 30, 2025?

Brigitte Baptiste is a Colombian environmental leader and biologist who was appointed to Aris Mining's Board of Directors effective immediately.

What positions does Brigitte Baptiste currently and formerly hold according to the ARMN announcement?

She currently serves as Rector of Universidad Ean in Bogotá and formerly served as Director of the Alexander von Humboldt Institute for Research on Biological Resources.

How did Aris Mining say Ms. Baptiste will contribute to ARMN's operations in Colombia and Guyana?

Aris Mining said her expertise in environmental science, biodiversity management, and inclusive leadership will strengthen the company’s commitment to responsible mining and sustainable growth in Colombia and Guyana.

When did Aris Mining announce the appointment of Brigitte Baptiste to the board of ARMN?

The appointment was announced on October 30, 2025 and is effective immediately.

Does the ARMN announcement mention any changes to management or executive roles beyond the board appointment?

No, the announcement only reports the appointment of Brigitte Baptiste to the Board of Directors.

Where can investors expect Ms. Baptiste's expertise to be applied within ARMN's strategy?

The company indicated her expertise will support environmental, biodiversity, and sustainability initiatives tied to responsible mining in Colombia and Guyana.