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AngloGold Ashanti holds the Quebradona project in the department of Antioquia in Colombia. On 7 March 2026, AngloGold Ashanti entered into a definitive agreement to sell AngloGold Ashanti Colombia S.A.S., which owns the La Colosa project, to Mineros S.A.
Quebradona
In June 2025, the Colombian government issued Resolution No. 855 of 2025, declaring a temporary renewable natural resources reserve zone (which is a form of environmental protected area) over multiple municipalities in the southwest of the Department of Antioquia, including the area in which the Quebradona project is located.
Resolution No. 855 restricts mining activities for three years (extendable for a further two years) while authorities may conduct technical studies regarding the conservation value of the area and subsequently determine whether to convert the area to a permanent protected area or to withdraw the temporary designation. No new environmental permits or licences may be issued as long as Resolution No. 855 is in force, though it expressly provides that existing concessions, permits and licences must be respected. In light of the impact of Resolution No. 855 on the Quebradona project, in December 2025, AngloGold Ashanti lodged an annulment and redress claim against Resolution No. 855 before the Colombian courts, which is currently pending the Court’s admission.
An indicator of impairment was identified for the Quebradona project. Given the heightened political uncertainty and uncertainty regarding potential changes to mining and environmental policy in Colombia, AngloGold Ashanti fully impaired exploration and valuation costs of $98m relating to the project.
