Potanin to appeal UK court decision in battle of billionaires

Russian businessman Vladimir Potanin plans to appeal a London court decision to block him from buying shares in mining company Norilsk Nickel from fellow investor Roman Abramovich, representatives at Potanin's investment firm said on Tuesday.

The ruling, taken in June, was considered to be advantageous for Russian tycoon Oleg Deripaska, who controls aluminium giant Rusal, and has long been at loggerheads with Potanin over control of Norilsk Nickel.