Cabot Microelectronics to Release Financial Results for Fourth Quarter and Full Fiscal Year 2013 on October 29

Cabot Microelectronics to Release Financial Results for Fourth Quarter and
Full Fiscal Year 2013 on October 29

AURORA, Ill., Oct. 10, 2013 (GLOBE NEWSWIRE) -- Cabot Microelectronics
Corporation (Nasdaq:CCMP), the world's leading supplier of chemical mechanical
planarization (CMP) slurries and a growing CMP pad supplier to the
semiconductor industry, announced today that it will release financial results
for its fourth quarter and full Fiscal Year 2013, which ended September 30,
2013, on Tuesday, October 29.

The press release, which will be issued prior to market open and available in
the Investor Relations section of the company's website, www.cabotcmp.com,
will be followed by a conference call at 9:00 a.m. Central Time.

The conference call will be available via webcast from www.cabotcmp.com, or by
phone at (866) 700-6293. Callers outside the U.S. can dial (617) 213-8835. The
conference code for the call is 36031930.

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
         Trisha_Tuntland@cabotcmp.com