Antofagasta plc is a copper mining company. The Company is engaged in by-product production and has interests in transport. The Company's segments include Los Pelambres, Centinela, Michilla, Antucoya, Zaldivar, Exploration and evaluation, Railway and other transport services, Mining, Water concession, and Corporate and other items. Its operating divisions include Mining and Transport. The mining division includes Los Pelambres, Centinela, Antucoya and Zaldivar. The transport division operates the main cargo transport system in the Antofagasta Region of Chile, moving goods and materials, such as sulfuric acid and copper cathodes to and from mines by road and rail network. The transport division provides rail and road cargo services in northern Chile. Its mining operations produce copper with by-products of gold, molybdenum and silver. Los Pelambres and Centinela produce copper concentrate containing gold and silver. The Centinela, Antucoya and Zaldivar produce copper cathodes.