"Mining group Xstrata dipped 168p to £39.69 on speculation that talks between Glencore, the commodities trader that owns 35pc of Xstrata, and Brazilian suitor Vale had hit an impasse. Glencore wants to retain the lucrative marketing rights that it has over Xstrata's products but Vale is not so keen to oblige."
http://www.telegraph.co.uk/money/main.jhtml?xml=/money/2008/02/29/cxmktrep129.xml