Konkola Copper Mines (KCM), is set to commission its Nchanga smelter, part of a $1 billion expansion plan to lift copper output to 500,000 tonnes by 2010, a senior company official said on Friday.

Zambia's Nchanga copper smelter, owned by the country's largest copper mine, was partially burnt by fire, but it was not immediately clear if there was any impact on production, ...