Attached files

file filename
EX-24 - EX-24 - OM GROUP INCl38672exv24.htm
EX-32 - EX-32 - OM GROUP INCl38672exv32.htm
EX-21 - EX-21 - OM GROUP INCl38672exv21.htm
EX-31.1 - EX-31.1 - OM GROUP INCl38672exv31w1.htm
EX-31.2 - EX-31.2 - OM GROUP INCl38672exv31w2.htm
EX-10.8 - EX-10.8 - OM GROUP INCl38672exv10w8.htm
10-K - FORM 10-K - OM GROUP INCl38672e10vk.htm
Exhibit 23
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the following Registration Statements of our reports dated February 25, 2010, with respect to the consolidated financial statements and schedule of OM Group, Inc. and Subsidiaries, and the effectiveness of internal control over financial reporting of OM Group, Inc. and Subsidiaries included in the Annual Report (Form 10-K) for the year ended December 31, 2009:
         
Registration        
Statement   Description   Filing Date
333-07531
  OM Group, Inc. Non-Employee Directors’ Equity Compensation Plan—Form S-8 Registration Statement—250,000 Shares   July 3, 1996
 
       
333-47230
  OM Group, Inc. 1998 Long-Term Incentive Compensation Plan—Form S-8 Registration Statement—2,000,000 Shares   October 3, 2000
 
       
333-65852
  OM Group, Inc. 1998 Long-Term Incentive Compensation Plan—Form S-8 Registration Statement—2,000,000 Shares   July 25, 2001
 
       
333-141033
  OM Group, Inc. 2002 Stock Incentive Plan and Inducement Stock Option Grant to Joseph M. Scaminace—Form S-8 Registration Statement—1,488,934 Shares   March 2, 2007
 
       
333-145238
  OM Group, Inc. 2007 Incentive Compensation Plan—Form S-8 Registration Statement —3,000,000 Shares   August 8, 2007
/s/ Ernst & Young LLP

Cleveland, Ohio
February 25, 2010