The Chuquicamata mine, located 1,650 kilometers (1,000 miles) north of Santiago, produces around 339,000 tonnes of copper per year, making it one of the company's most productive sites.
Refer to the input text as context and select the correct relationship between 'Chuquicamata' and 'copper' from the available options.
Options: distribution format, director/manager, product/material produced, developer