Rockwood to Acquire Kemira's 39% interest in Sachtleben TiO2 JV

Rockwood Holdings, Inc.

announced today that it has entered into an agreement to purchase Kemira Oyj's 39% interest in Sachtleben, the titanium dioxide (“TiO2”) business joint venture of the parties, for EUR 97.5 million. This transaction is expected to close no later than February 19, 2013. “Given our prior statements that the titanium dioxide business is non-core, it is our key objective this year to explore and execute on the best strategic option for Rockwood. Attaining 100% ownership of the joint venture provides us with the flexibility to achieve this goal in the time frame and manner most optimal for maximizing shareholder value,” said Seifi Ghasemi, Chairman and Chief Executive Officer.