Utilize the input text as a context reference, choose the right relationship between 'Glencore' and 'Katanga Mining' from the options.
Options: location of formation, manufacturer, industry, owner of

Glencore said last month it would suspend production at its Katanga Mining (Toronto: KAT.TO - news ) unit for 18 months as it pursues an $880 million modernization project to lower costs.
owner of