UPDATE 2-Two dead, five missing in Congo after wall collapse at Glencore mine
* Congo is Africa's top copper producer
* Katanga mine is one of country's largest
* Collapsed wall was more than 250 metres high (Recasts with toll, adds quote, context)
By Kenny Katombe
KOLWEZI, Democratic Republic of Congo, March 8 (Reuters) - T wo workers at Glencore's huge Katanga Mining copper and cobalt operation in southeastern Democratic Republic of Congo died on Tuesday and five remain missing, the mine's chairman said after a 250-metre pit wall collapsed.
"Of the seven who disappeared, two bodies were found," Gustave Nzeng, chairman of Kamoto Copper Company (KCC), the joint venture that runs the mine, told reporters in the town of Kolwezi.
Rescue efforts to find the remaining workers were being hindered by heavy rain, Nzeng said.
Mining companies in Congo extracted just under 1 million tonnes of copper in 2015, making the country Africa's top producer.
Major companies such as Freeport-McMoRan, Ivanhoe and Eurasian Natural Resources Corporation have invested heavily in the sector since a 2003 peace deal drew a line under years of regional war in Congo's east that killed millions, mostly from hunger and disease. Continued...