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Last updated on June 3, 2012 at 17:03 EDT

News - OM Group Inc.

2012-05-03 02:21:20

CLEVELAND, May 3, 2012 /PRNewswire/ -- OM Group, Inc.

2012-04-24 02:23:44

CLEVELAND, April 24, 2012 /PRNewswire/ -- OM Group, Inc. (NYSE: OMG) today announced that it plans to release its 2012 first quarter results before the market opens on May 3, 2012.

2012-02-28 06:30:00

CLEVELAND, Feb. 28, 2012 /PRNewswire/ -- OM Group, Inc.

2012-02-14 15:30:00

CLEVELAND, Feb. 14, 2012 /PRNewswire/ -- OM Group, Inc.

2012-01-17 06:30:00

CLEVELAND, Jan.

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