Refer to the input text as context and select the correct relationship between 'Antofagasta Plc' and 'ANTOFAGASTA' from the available options.
Options: location of formation, chief executive officer, distribution format, director/manager

* ANTOFAGASTA : Barrick Gold Corp agreed on Thursday to sell 50 percent of its Zaldivar copper mine in Chile to copper miner Antofagasta Plc for $1 billion in cash, and both parties stressed that this was just the start of more cooperation.
location of formation