Germany's richest woman, BMW (BMWG.DE) investor Susanne Klatten, has secured a blocking stake in SGL Group (SGCG.DE) to keep Volkswagen (VOWG_p.DE) at bay in a tussle over carbon fibre technology. SGL said on Wednesday that Klatten, heiress to the fortune of German industrialist Herbert Quandt, raised her stake in the company to 27.3 percent, giving her the right to veto strategic decisions, and aimed to lift it to about 29 percent over the next 12 months, up from 22 percent previously. SGL shares were up 6.6 percent at 35.88 euros by 1100 GMT at the top of a flat German midcap index .MDAXI. Klatten, whose estimated $15 billion fortune made her the target of a blackmail plot in 2007, holds 12.6 percent in BMW, while the Quandt family owns a combined 46.7 percent of the carmaker.
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