Utilize the input text as a context reference, choose the right relationship between 'Goldcorp' and 'gold' from the options.
Options: currency, product/material produced, director/manager, operator

It is managed by a joint venture between two of the world’s largest gold producers, with Barrick owning 60% and responsible for operations and Goldcorp Inc. (“Goldcorp”) owning the remaining 40%.
product/material produced