RPT-BRIEF-Xstrata plans unsolicited takeover bid for Lonmin -FT

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Aug 5 (Reuters) - Xstrata Plc (XTA.L): * Xstrata is preparing unsolicited takeover bid for Lonmin Plc (LMI.L), and the deal likely worth around $9 billion - Financial Times * Senior Lonmin execs made aware of Xstrata's plan, company taken by surprise - Financial Times * Any offer from Xstrata would be in high 20-pounds range - Financial Times, citing market insider