In 2004, Empresas Navieras, main company of the Holding to which AGUNSA belongs, became part of the partnership Antofagasta Terminal Internacional (ATI), taking over the concession of the mooring site number 2 for 20 years. This site operates berths 4-5, 6 and 7, with a total surface of 8.5 hectares.  

Its main objective is rendering services of international standard to importers and exporters of the II Region of Chile, to Freight Forwarders and Shipping Companies known worldwide.

Their main clients of the mining sector are Codelco Chile, Minera Zaldívar, Minera Escondida, Empresa Minera Mantos Blancos, El Tesoro, El Abra, Radomiro Tomic and other non-metallic mining companies.