Aris Mining Q3 production rises 16% year to date

3 thousand ounces (koz) for the nine months ended September 30, 2026 (YTD 2026), up 16% from YTD 2025. Based on year-to-date operating performance and the outlook for the fourth quarter, the Company remains on track to meet the lower end of 2026 production guidance of 300,000 to 350,000 ounces. S. dollars unless otherwise indicated.

Neil Woodyer, Chair and CEO, commented "During the third quarter, we continued to advance our growth plans at both Segovia and Marmato. At Segovia, owner-mined tonnes increased approximately 23% from Q1 to Q3. Production from our external mining partners was affected earlier in the year by temporary constraints on access to explosives, which impacted their tonnes and grades. This issue was resolved in September under the new Colombian administration, positioning partner production to increase toward planned ramp-up levels.

At Marmato, the new Cascabel 3 filtered tailings facility, a key component of the expansion project, has been commissioned. We used the associated planned downtime to carry out upgrades at the existing flotation plant, while construction of the new CIP plant continues to advance toward first gold in Q4. With mining underway in the Bulk Mining Zone, ore stockpiles building ahead of CIP commissioning, and the Cascabel 3 filtered tailing facility now operational, Marmato is well positioned heading into 2027. 3 koz, up 16% from the same period in 2025.

4 koz at an average realized price of approximately $4,204 per ounce, resulting in Q3 2026 gold revenue of approximately $287 million and over $972 million on a year-to-date basis. - The Marmato expansion project achieved another key milestone with the commissioning of the new Cascabel 3 filtered tailings facility. The planned transition from Cascabel 2 required approximately four weeks of flotation plant downtime, which was used to complete upgrades and extensive maintenance and contributed to lower production in Q3 2026.

- The refurbishment of the primary ball mill and the installation of a new regrind mill and Knelson concentrator have increased the Marmato flotation plant's capacity to 1,250 tonnes per day (tpd). - Marmato's 5,000 tpd CIP plant remains on track for first gold in Q4 2026. - Cash balance of $419 million at September 30, 2026, including $42 million from the third and final Marmato construction funding instalment from Wheaton Precious Metals. - The Toroparu Prefeasibility Study remains on track for completion in Q4 2026.

- At Soto Norte, the technical mine plan has been approved by the ANM and preparation of the Environmental and Social Impact Assessment has been completed for community engagement. The Company expects to report its full Q3 2026 financial and operating results on or around November 4, 2026. 1 ----------------------------------- ------- ------- ------- ------ About Aris Mining Aris Mining is a Canadian gold mining company focused on South America. The Company operates the Segovia and Marmato underground gold mines in Colombia, which together produced approximately 257,000 ounces of gold in 2025.

Aris Mining is listed on the Toronto Stock Exchange and the New York Stock Exchange under the symbol ARIS. The Company is advancing expansion projects at Segovia and Marmato that are expected to increase annual gold production to 500,000 ounces(2), driven by the ramp-up at Segovia following the installation of the second mill which was completed in June 2025, and construction of the new Marmato bulk mine and CIP plant, with first gold expected in Q4 2026. Aris Mining's portfolio supports a longer-term objective of approximately 1 million ounces of annual gold production(3).

Key projects include the high-grade Soto Norte gold project in Colombia, where preparation of the Environmental and Social Impact Assessment (ESIA) has been completed for community engagement, and the Toroparu gold project in Guyana, where a Prefeasibility Study is in progress and a construction decision is expected in early 2027. , Senior Vice President Geology and Exploration of Aris Mining, is a Qualified Person as defined by National Instrument 43-101 (NI 43-101), and has reviewed and approved the technical information contained in this news release.

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 timing for completion and first gold pour at the Marmato CIP Plant, expectations regarding meeting guidance, Segovia and Marmato Q3 2026 production and sales, the expected increase in production from the ongoing ramp up at Segovia, CMP production levels at Segovia, Soto Norte community engagement and environmental-licensing activities, the expected timing for releasing full Q3, 2026 financial and operating results, the timeline for a Prefeasibility Study and construction decision for the Toroparu Project, the objective of reaching 1 million ounces of production, 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 11, 2026 which is available on SEDAR+ at and included as part of the Company's Annual report on Form 40-F, filed with the SEC at (MORE TO FOLLOW) Dow Jones Newswires October 07, 2026 17:00 ET (21:00 GMT) The statements in this document shall not be considered as an objective or independent explanation of the matters.

Please note that this document (a) has not been prepared in accordance with legal requirements designed to promote the independence of investment research, and (b) is not subject to any prohibition on dealing ahead of the dissemination or publication of investment research.