OMG Group Inc. (OMG)

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OM Group to Issue 2008 First Quarter Results on May 8, 2008
Thursday April 24, 4:30 pm ET
Conference Call & Webcast Scheduled

CLEVELAND, April 24 /PRNewswire-FirstCall/ -- OM Group (NYSE: OMG - News) today announced that it plans to release its 2008 first quarter results before the market opens on May 8, 2008. The company plans to discuss these results on a conference call and live audio broadcast on the Web at 10:00 a.m. (ET) on May 8, 2008. Investors may access the live audio broadcast by logging on to http://phx.corporate-ir.net/phoenix.zhtml?c=82564&p=irol-audioarchives .

A copy of the management's presentation materials will be available on 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. Also, a webcast audio replay will be available on the "Investor Audio Archive" page of the company's Web site, approximately three hours after the call.

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.