Refer to the input text as context and select the correct relationship between 'Katanga Mining' and 'Glencore' from the available options.
Options: product/material produced, location of formation, distributed by, owned by

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.
owned by