Ukraine's PrivatBank appeals court ruling in claim against ex-owners

KIEV (Reuters) - Ukraine's PrivatBank said on Saturday it had appealed a London court decision to reject a claim against its former owners.Ukrainian authorities say they have spent nearly $6 billion (4.7 billion pounds) since they nationalised PrivatBank in 2016 in a bid to protect customer deposits, part of a clean-up of the country's banking system which was backed by the International Monetary Fund.But in a setback to the state-owned bank's efforts to claw back about $2 billion it says was..