The Zambian government says it’s no intention of nationalising the mining industry – a position adopted last week by South Africa’s own ruling party. However, Zambia intends to increase its stake in mining companies by 15% and recoverĀ  taxes the companies haven’t paid – which might come to as much as US$1 billion. Among London-listed mining companies active in Zambia are Glencore and Vedanta.
See http://www.minesandcommunities.org/article.php?a=11486&l=1.