Cabot Microelectronics Corporation Receives Outstanding Supplier Performance Award from Microchip Technology

Cabot Microelectronics Corporation Receives Outstanding Supplier Performance
Award from Microchip Technology

Aurora, IL, Nov. 26, 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 has received
an Outstanding Supplier Performance Award from Microchip Technology Inc., in
recognition of its performance in quality, reliability and service in 2012.
Microchip recognized Cabot Microelectronics for its significant contributions
in providing CMP slurries and pads solutions deemed essential to Microchip's
success.

"We are  very pleased  to have  earned this  Outstanding Supplier  Performance 
Award from  Microchip," stated  William  Noglows, Chairman  and CEO  of  Cabot 
Microelectronics. "We are committed to  working closely with our customers  to 
deliver innovative, high-quality,  high-performing and  reliable CMP  products 
and solutions."

"Cabot Microelectronics  has made  valuable contributions  to Microchip's  CMP 
polishing platforms, by providing excellent technology and performance,"  said 
Kathy Clevenger, Microchip's Vice President of Manufacturing Operations at Fab
4. "Its team provides Microchip with technical expertise along with excellent
customer service  and continuous  improvement. We  appreciate the  value  and 
commitment Cabot Microelectronics  brings to  Microchip, and  look forward  to 
continuing our long-term relationship."

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 annual report on Form 10-K for the fiscal year ended
September 30, 2013, 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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