Chemetall Increases Organo Lithium Prices

Chemetall a wholly owned subsidiary of Rockwood Holdings, Inc. (NYSE: ROC) announced today that effective October 1^st, 2010, as contracts permit, prices for Organo Lithium products will be increased by 8 percent. The reasons to take this action are owing to the increased costs for energy, raw materials, solvents and transport. Chemetall wants further to maintain and to expand its capabilities as the leading supplier of Lithium products with excellent technical service and first class logistics.

Chemetall continues to develop cost-effective and reliable sources of supply and has invested in new capacities and technologies. Appropriate prices are necessary to ensure that Chemetall will remain a long-term reliable and innovative partner for the company’s global customers.

Chemetall continues to develop cost-effective and reliable sources of supply and has invested in new capacities and technologies. Appropriate prices are necessary to ensure that Chemetall will remain a long-term reliable and innovative partner for the company’s global customers.

Rockwood Holdings, Inc. is a leading global specialty chemicals and advanced materials company. Rockwood has a worldwide employee base of approximately 9,500 people and annual net sales of approximately $3 billion. The company focuses on global niche segments of the specialty chemicals, pigments and additives and advanced materials markets. For more information on Rockwood, please visit www.rocksp.com.

The information set forth in this press release contains certain "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 concerning the business, operations and financial condition of Rockwood Holdings, Inc. and its subsidiaries and affiliates ("Rockwood"). Words such as "anticipates," "believes," "estimates," "expects," "forecasts," "predicts" and variations of such words or expressions are intended to identify forward-looking statements. Although Rockwood believes the expectations reflected in such forward-looking statements are based upon reasonable assumptions, there can be no assurance that its expectations will be realized. "Forward-looking statements" consist of all non-historical information, including any statements referring to the prospects and future performance of Rockwood. Actual results could differ materially from those projected in Rockwood's forward-looking statements due to numerous known and unknown risks and uncertainties, including, among other things, the "Risk Factors" described in Rockwood's 2009 Form 10-K on file with the Securities and Exchange Commission. Rockwood does not undertake any obligation to publicly update any forward-looking statement to reflect events or circumstances after the date on which any such statement is made or to reflect the occurrence of unanticipated events.