Mr. Neil Woodyer reports

ARIS MINING ACHIEVES 2023 PRODUCTION GUIDANCE AND PROVIDES 2024 OUTLOOK

Aris Mining Corp. had 2023 gold production of 226,151 ounces from its two operations in Colombia, within the 2023 guidance range of 220,000 to 240,000 ounces. The Q4 2023 results provided in this news release are approximate and may differ from the final results to be included in the Company's 2023 annual audited financial statements and MD&A, which the Company expects to release in early March 2024.

Neil Woodyer, CEO of Aris Mining, commented "In 2023, our Segovia Operations achieved full-year production of 202,940 ounces, meeting its guidance range of between 195,000 and 210,000 ounces. We also achieved substantial growth in mineral resources and reserves at Segovia, supporting our plan to expand the processing facilities. During the transition to full-scale construction of the new Marmato Lower Mine that started in Q3 2023, our Marmato Upper Mine maintained operations and produced 23,211 ounces during the year.

Looking ahead to 2024, we expect total gold production of between 220,000 and 240,000 ounces, which is consistent with our 2023 production rates. We are currently expanding the Segovia processing facility by 50% to 3,000 tonnes per day (tpd), with completion expected by early 2025. We are also building the new Marmato Lower Mine with the first gold pour expected in late 2025. We are targeting to produce approximately 500,000 ounces of gold in Colombia in 2026, following completion of our two expansion projects. We are also continuing to progress permitting at the top-tier Soto Norte gold-copper project and defining a new development plan for our Toroparu Project.

During 2024, we plan to invest $21 million in exploration programs designed to build on the exploration success and new interpretation at the Segovia Operations which resulted in a 114% increase in mineral resources and 75% increase in gold reserves in 2023."

2023 Highlights:

• Achieved total annual gold production of 226,151 oz with steady quarter-over-quarter increases.

• The Segovia Operations achieved all-in-sustaining cost per ounce (AISC/oz)1 sold of $1,139 for the nine months ended September 30, 2023 and is expected to achieve full-year cost guidance of between $1,125 and $1,175.
• In July 2023, Aris Mining received the permits to start construction of the Marmato Lower Mine.
• In September 2023, Aris Mining commenced trading on the NYSE-American as "ARMN".
• In November 2023, Aris Mining announced material increases in the mineral resource and reserve estimates at the Segovia Operations and filed an updated technical report supporting the new estimates in December 2023.
• • Measured and indicated mineral resources increased by 114% to 3.6 million ounces at 14.34 grams per tonne (g/t) Au, plus inferred resources of 1.8 million ounces at 12.11 g/t Au2
  • Proven and probable mineral reserves increased by 75% to 1.3 million ounces at 11.63 g/t Au3

2024 Production and AISC/oz Guidance:

• During 2024, Aris Mining expects consolidated gold production of between 220,000 and 240,000 oz, with in-progress expansion projects to contribute to production growth in 2025 and beyond.
• AISC/oz1 at the Segovia Operations is expected to be between $1,225 and $1,325. It is notable that approximately 45% of the Segovia Operations gold production is from 'partner-operated' mining where the cost structure primarily hinges on a percentage of the U.S. dollar spot gold price.
• Aris Mining will resume providing cash cost and AISC/oz cost guidance for the Marmato Mine when the Lower Mine achieves commercial production.

2024 Expansion Projects

• Segovia Operations - Processing plant expansion. The capacity of the processing plant is currently 2,000 tpd and includes crushing, grinding, gravity concentration, gold flotation and regrind, cyanidation, Merrill-Crowe precipitation, and smelting of the precipitate and gravity concentrate to produce gold-silver dore. The plant is being expanded to 3,000 tpd and includes installation of a previously purchased ball mill, which is already onsite, and the re-location and upgrade of the facilities that receive material from our artisanal and small-scale mining partners. The costs for the expansion are estimated at $11 million and completion is expected by early 2025. The additional processing capacity will be utilized by ramping up owner-operated mining rates and providing greater processing availability to our artisanal and small-scale mining partners.
• Marmato Lower Mine Expansion Project. Construction commenced in September 2023, with approximately $140 to $150 million of expenditures expected during 2024, representing 50% of the total construction budget of $280 million. In addition, Aris Mining expects to achieve the 25% and 50% completion milestones and associated $80 million in stream funding during 2024. This new underground mine will provide access to the wider and large-scale porphyry mineralization below the currently operating Upper Mine, which allows for more efficient bulk mining methods in the Lower Mine.
• Toroparu Project. The Toroparu Project is a significant gold exploration and development project located in western Guyana. The project has undergone extensive exploration and drilling programs and the estimated mineral resources at Toroparu are substantial, indicating the potential for a long-life, large-scale gold mining operation. Given its size and potential, Aris Mining is reviewing and refining the development strategy for the Toroparu project.

Technical Disclosure and Qualified Person

The technical information in this news release was reviewed and approved by Pamela De Mark, P.Geo, Senior Vice President, Geology and Exploration of Aris Mining, who is a Qualified Person as defined by NI 43-101. Unless otherwise indicated, the mineral resource and reserve estimates, scientific disclosure, and technical information included in this news release are based upon information included in the following NI 43-101 compliant technical report: "NI 43-101 Technical Report for the Segovia Operations, Antioquia, Colombia" dated December 6, 2023 with an effective date of September 30, 2023 (the "Segovia Technical Report"). The Segovia Technical Report was prepared by Pamela De Mark, P.Geo., Inivaldo Diaz, CP, and Cornelius Lourens, FAusIMM, each of whom are a "Qualified Person" as such term is defined in NI 43-101. Mr. Lourens is independent of Aris Mining and Ms. De Mark and Mr. Diaz are not independent of Aris Mining.

About Aris Mining

Aris Mining is a gold producer in the Americas with a growth-oriented strategy. In Colombia, Aris Mining operates several high-grade underground mines at its Segovia Operations and the Marmato Mine, which together produced 226,000 ounces of gold in 2023. Aris Mining is currently advancing construction of the Marmato Lower Mine Expansion project, which will provide access to wider porphyry mineralization below the current Upper Mine. Aris Mining also operates the Proyecto Soto Norte joint venture, where environmental licensing is advancing to develop a new underground gold, silver and copper mine. In Guyana, Aris Mining is advancing the Toroparu Project, a gold/copper project. Aris Mining plans to pursue acquisitions and other growth opportunities to unlock value creation from scale and diversification.

Aris Mining promotes the formalization of artisanal and small-scale mining as this process enables all miners to operate in a legal, safe and responsible manner that protects them and the environment.

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

We seek Safe Harbor.