Utilize the input text as a context reference, choose the right relationship between Katanga Mining and Glencore 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.

Separately, Katanga Mining (Toronto: KAT.TO - news ) announced the suspension of copper and cobalt processing operations in the Democratic Republic of Congo site for 18 months, and confirmed the continuation of the planned investment of $880m into ongoing plant upgrades at the project, in which Glencore owns a 74pc stake.

Answer: owned_by