Utilize the input text as a context reference, choose the right relationship between gold mine and gold from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

The mine began production in 2013, and is the only primary gold mine in the world with annual production of more than one million ounces of gold (100% basis), at all-in sustaining costs below $700 per ounce.

Answer: product_or_material_produced