Utilize the input text as a context reference, choose the right relationship between 'Resolution Copper' and 'copper' from the options.
Options: developer, business division, original broadcaster, product/material produced

Opponents also point to the foreign owners of Resolution Copper Mining, a subsidiary of British-Australian Rio Tinto and Australian BHP Billiton, saying it's unclear how much of the profits and the copper will stay in the U.S.
product/material produced