The Antofagasta PLC, one of the most important conglomerates of Argentina, controlled by majority shareholders Chile's Luksic Group holds a 50% interest in Tethyan Copper Company Limited (Tethyan); which has held a 75% interest in an exploration licence encompassing the Reko Diq deposit.
It is one of the most important conglomerates of Chile with equity participation in Antofagasta Minerals, the railroad from Antofagasta to Bolivia, Twin Metals in Minnesota and other exploration joint ventures in different parts from the world. 
