Antofagasta Minerals, the main Chilean private mining group, is one of the ten largest copper producers in the world.
Grupo Minero is organized as a closed stock company and is a subsidiary of Antofagasta plc, which trades its shares on the London Stock Exchange and is listed on the FTSE 100 index. Control of Antofagasta plc belongs to the Luksic group , which owns 65% of its property.

Antofagasta Minerals is in charge of the operation of four mining companies: Minera Los Pelambres, Minera Centinela, Minera Antucoya and Minera Zaldívar. It also carries out exploration and project development activities, both in Chile and abroad.

Minera Centinela was created in July 2014 as a result of the integration of the El Tesoro and Esperanza mining companies. It is located in the Antofagasta region, in the Sierra Gorda commune, 180 kilometers from Antofagasta.
In 2018, it launched the Oxido Encuentro and Molybdenum Plant projects, which contribute to the company's productivity.

Products: copper cathodes and concentrates; gold.