"China Development Bank, which bankrolled Chinalco's dawn raid on Rio Tinto shares last Friday, is one of a number of investors to have held discussions with Glencore, a Swiss commodities trader, about buying its 35 per cent stake in Xstrata. A successful move by CDB or one of the other parties which has approached Glencore could derail a tie-up between Xstrata and Vale, the Brazilian mining concern."
http://www.telegraph.co.uk/money/main.jhtml?xml=/money/2008/02/03/cnxtrata103.xml