Take context from the input text and decide on the accurate relationship between 'Katanga Mining' and 'Glencore' from the options provided.
Options: operator, owned by, stock exchange, business division

KINSHASA, Sept 10 (Reuters) - Glencore (Xetra: A1JAGV - news ) held talks with Congolese officials in Kinshasa on Thursday over the company's plans to suspend some copper output at its Katanga Mining unit for 18 months, an adviser to the prime minister said.
owned by