Leaching Gravel Management Update - Spence

Description: The Leaching Gravel Management Update is located at the Spence copper mining site, located in the Antofagasta Region, Antofagasta Province, city of Sierra Gorda, about 150km northeast of the city of Antofagasta, approximately 1,650 meters above sea level The objective of the project is to update the management of leaching rubble from the Minera Spence operation, allowing to reach the expected useful life for leaching, optimizing the use of resources through the reprocessing of rubble (minimizing the costs associated with the process), and granting a greater flexibility in the removal of rubble from operational situations that prevent its mechanized removal. The project will not require increasing the extraction of mineral, nor modify the rates of authorized processes.