Utilize the input text as a context reference, choose the right relationship between Codelco and copper 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.

Chilean copper giant Codelco saw its bond spreads widen, with the 2022s spotted at 192bp versus the 180bp seen last week, according to Thomson Reuters data.

Answer: product_or_material_produced