BUZZ-Lonmin PLC:shares fall more than 10 pct on proposed mine closures
** Shares (Frankfurt: DI6.F - news) in South African platinum producer Lonmin plummet more than 10 pct to a ten year low after the London listed firm said it was planning to close several mine shafts.
** Says company is making a loss due to depressed metal prices
** Proposed restructuring will put 6,000 South African jobs at risk
** Shares down 58 pct this year vs the 4 pct climb of the Johannesburg All-Share (LSE: SHRE.L - news) index