Aris Mining Completes Underground Connection at Marmato Gold Mine

Infrastructure Progress Advances Marmato 2026 Gold Production Goals

Aris Mining (TSX: ARIS; NYSE: ARIS) confirmed the completion of an underground infrastructure connection at its Marmato gold mine in Colombia. The development involved connecting a new surface decline to the existing underground mining workings.

This cross-cut connection serves as a technical step for the ongoing expansion project, which includes the construction of a 5,000 tons-per-day carbon-in-pulp (CIP) plant. The company stated that the infrastructure is currently on schedule to support the initiation of gold production in the fourth quarter of 2026.

Neil Woodyer, Chair and CEO of Aris Mining, stated: “The on-schedule connection of the new surface decline to the existing underground development is a major milestone for Marmato and an important step in delivering our expansion plans.”

The Marmato expansion is part of a broader strategy intended to increase the company’s annual gold production. Aris Mining aims to achieve a combined output of approximately 500,000 ounces per year from its Segovia and Marmato operations. The Segovia mine previously expanded its operational capacity following the installation of a second mill in June 2025.

The company maintains a long-term production objective of approximately 1 million ounces of gold annually. This target incorporates potential production from the Toroparu gold project in Guyana, where a prefeasibility study is currently underway. Aris Mining expects a construction decision regarding the Toroparu project in early 2027.

Regarding its portfolio in Colombia, the company is finalizing environmental studies for the Soto Norte gold project. Aris Mining plans to submit these documents for the licensing process during the second quarter of 2026.

Photo (© Loren Moss) illustrative only (Not marmato mine)