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Cabot Microelectronics Corporation to Participate in Sidoti & Company 17th Annual Institutional Investor Forum

Cabot Microelectronics Corporation to Participate in Sidoti & Company 17th
Annual Institutional Investor Forum

Aurora,  IL,  March  12,  2013  (GLOBE  NEWSWIRE)  --  Cabot  Microelectronics 
Corporation  (NASDAQ:  CCMP),  the   world's  leading  supplier  of   chemical 
mechanical planarization  (CMP)  polishing  slurries and  a  growing  CMP  pad 
supplier to the semiconductor industry,  today announced that it is  scheduled 
to participate in  the Sidoti  & Company 17^th  Annual Institutional  Investor 
Forum in New York on  March 19, 2013. For more  information, or to arrange  a 
meeting with management, please contact your Sidoti representative, or  Trisha 
Tuntland of Cabot Microelectronics at investor_relations@cabotcmp.com.

Investor materials are available on the company's website at www.cabotcmp.com.

ABOUT CABOT MICROELECTRONICS CORPORATION

Cabot Microelectronics Corporation, headquartered in Aurora, Illinois, is  the 
world's leading  supplier of  CMP polishing  slurries and  a growing  CMP  pad 
supplier to  the  semiconductor  industry.  The  company's  products  play  a 
critical role in  the production of  advanced semiconductor devices,  enabling 
the manufacture of smaller, faster and more complex devices by its customers.
The company's mission is to create value by developing reliable and innovative
solutions, through close customer collaboration, that solve today's challenges
and help enable tomorrow's technology.  Since becoming an independent  public 
company in 2000, the company has  grown to approximately 1,050 employees on  a 
global basis. For more information about Cabot Microelectronics  Corporation, 
visit  www.cabotcmp.com  or  contact  Trisha  Tuntland,  Manager  of  Investor 
Relations at 630-499-2600.

CONTACT: Trisha Tuntland
         Manager, Investor Relations
         630-499-2600

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