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Conditional Agreement between RHI and Cookson Group

11. October 2008

RHI AG announces that a conditional agreement has been reached with Cookson Group plc concerning the acquisition of two plants, in Scotland (Bonnybridge) and USA (Saybrook) respectively, manufacturing Carbon Bonded Ceramics (“CBC”), currently operated by Foseco plc.

The CBC business had revenues of approximately GBP 20 million for the year ended 31 December 2006 and gross assets of approximately GBP 9 million as at
31 December 2006. Completion of the transaction is conditional, amongst other things, on receipt of anti-trust clearances in the US and Europe regarding the acquisition of Foseco by Cookson, which is expected to be completed in the first half of 2008.