Adventus Mining Corporation announced that the Ministry of Environment, Water, and Energy Transition of the Government of Ecuador ("MAATE") has granted the Environmental License for the construction and operation of the El Domo-Curipamba project . The environmental licensing process began on November 4, 2021, with the submittal of the Environmental and Social Impact Assessment ("ESIA") and the Environmental Management Plan ("EMP"). The 7,000-page ESIA and EMP comply with Ecuadorian legislation and international best practices which include physical, biotic, socioeconomic, and cultural baselines, determination of areas of influence, analyses of environmental risks and social and environmental impacts as well as a plan that comprises the prevention and mitigation of impacts, contingencies, training, waste management, community relations, rehabilitation of affected areas, wildlife rescue, environmental monitoring, and mine closure.

MAATE issued the technical approval of the ESIA and EMP in May 2022. The final phase of the permitting process, the Environmental Consultation ("Consultation"), was carried out by MAATE between July and December 2023 pursuant to the Regulation of the Environmental Organic Code as modified by Presidential Decree 754 and in accordance with guidelines issued by the Constitutional Court of Ecuador, which incorporate Escazú principles and other international standards related to community participation in development projects.