Cabot Microelectronics Corporation's William S. Johnson Named CFO of the Year

Cabot Microelectronics Corporation's William S. Johnson Named CFO of the Year

Aurora, IL, Nov. 15, 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 William S.
Johnson, Executive Vice President and Chief Financial Officer, has been named
2013 Chicago CFO of the Year by the Financial Executives International (FEI)
Chicago Chapter. The award recognizes senior financial leaders for their
exceptional contributions to a business, as demonstrated by their quality,
insight and direction.

Mr. Johnson won  the award  in the  mid-size public  company category.  Award 
recipients are determined by a  committee of independent judges, comprised  of 
finance professionals in industry and academia.

"I am honored to be named a Chicago CFO of the year, and to have been able  to 
serve as Cabot Microelectronics' CFO over the past ten years as we have  grown 
and strengthened  our business  during  a dynamic  time in  the  semiconductor 
industry and the world economy.  This recognition, which reflects the  wealth 
of opportunities available  to companies  like ours  to create  value for  our 
shareholders, customers  and  employees, arises  from  the strength  of  Cabot 
Microelectronics' entire accounting and finance team," Johnson said.

"Bill is  an  outstanding  CFO,  strategic  leader,  and  colleague,  who  has 
contributed significantly  to  Cabot Microelectronics'  success  in  countless 
ways. Whether in spearheading our  leveraged recapitalization with a  special 
cash dividend last  year, which  delivered approximately $350  million to  our 
shareholders, or  consistently demonstrating  admirable corporate  stewardship 
through consistent, prudent  financial management, Bill's  positive impact  on 
our company has been  substantial, and we are  delighted that he has  received 
this well-earned recognition from FEI," said William Noglows, Chairman and CEO
of Cabot Microelectronics.

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.

SAFE HARBOR STATEMENT

This news release may include statements that constitute "forward looking
statements" within the meaning of federal securities regulations. These
forward-looking statements include statements related to: future sales and
operating results; company and industry growth, contraction or trends; growth
or contraction of the markets in which the company participates; international
events, regulatory or legislative activity, or various economic factors;
product performance; the generation, protection and acquisition of
intellectual property, and litigation related to such intellectual property;
new product introductions; development of new products, technologies and
markets; natural disasters; the acquisition of or investment in other
entities; uses and investment of the company's cash balance; financing
facilities and related debt, payment of principal and interest, and compliance
with covenants and other terms; the company's capital structure; and the
construction and operation of facilities by Cabot Microelectronics
Corporation.These forward-looking statements involve a number of risks,
uncertainties, and other factors, including those described from time to time
in Cabot Microelectronics' filings with the Securities and Exchange Commission
(SEC), that could cause actual results to differ materially from those
described by these forward-looking statements. In particular, see "Risk
Factors" in the company's quarterly report on Form 10-Q for the quarter ended
June 30, 2013 and in the company's annual report on Form 10-K for the fiscal
year ended September 30, 2012, both filed with the SEC. Cabot Microelectronics
assumes no obligation to update this forward-looking information.

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

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