Shares in Kazakhmys fell sharply after the copper miner reported a 30 per cent fall on underlying earnings and a $2bn writedown on its stake in fellow Kazakh miner ENRC. However, these earnings results had been expected. Lex's Vincent Boland and Julia Grindell discuss the share price fall and operational challenges facing Kazakhmys.
Produced by Nalini Sivathasan. Filmed by James MacDonald.