Rockwood Holdings, Inc. Announces 2nd Quarter Conference Call and Webcast

Rockwood Holdings, Inc. (NYSE: ROC), a global producer of specialty chemicals and advanced materials, will host a conference call and webcast to discuss the results of operations for the second quarter ended June 30, 2009 on Wednesday, July 29^th at 11:00 am Eastern Daylight Time.

The dial-in number to access the conference call in the U.S. is (888) 428-4472, and the international dial-in number is (612) 288-0337. No access code is needed for either call. A replay of the conference call will be available through August 12, 2009 at (800) 475-6701 in the U.S., access code: 105662, and internationally at (320) 365-3844, access code: 105662.

A listen-only, live webcast of the conference call will be available at www.rocksp.com. Materials for the call, including a PowerPoint file detailing the results, will be available for download on the company’s website on the morning of the call. The webcast and PowerPoint file will be archived on Rockwood’s website.

Rockwood Holdings, Inc. is a leading global specialty chemicals and advanced materials company. Rockwood has a worldwide employee base of approximately 10,000 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.