CLEVELAND, Oct. 21 /PRNewswire-FirstCall/ -- OM Group, Inc. (NYSE: OMG) today announced that it plans to release its 2009 third quarter results before the market opens on November 5, 2009. The press release will be available on the Investor Relations section of the OMG website at http://investor.omgi.com.

The company plans to discuss these results on a conference call at 10:00 a.m. (ET) on November 5, 2009. The conference call will be available via webcast at http://investor.omgi.com. An archived version of the webcast will be available for those unable to access the live event. Alternatively, investors and analysts inside the U.S. or Canada may access the conference call by phone at 800-344-0734 during the event or at 800-642-1687 to listen to the replay. Callers outside the U.S. or Canada may dial 973-935-2082 during the event or 706-645-9291 to listen to the replay. The conference code is 36173427.

A copy of the management's presentation materials will be available on the Investor Relations section of the company's Web site at the time of the call. The company recommends visiting its Web site at least 15 minutes prior to the webcast to download and install any necessary software.

ABOUT OM GROUP, INC.

OM Group, Inc. is a diversified global developer, producer and marketer of value-added specialty chemicals and advanced materials that are essential to complex chemical and industrial processes. Key technology-based end-use applications include affordable energy, portable power, clean air, clean water and proprietary products and services for the microelectronics industry. Headquartered in Cleveland, Ohio, OM Group operates manufacturing facilities in the Americas, Europe, Asia and Africa. For more information, visit the company's Web site at http://www.omgi.com/.

SOURCE OM Group, Inc.