Cabot Microelectronics Corporation Receives Outstanding Performance Supplier Award From Inotera, a Wholly-Owned Subsidiary of Micron

Aurora, IL, Dec. 07, 2016 -- 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, announced today that it is one of only four consumables suppliers that have earned an Outstanding Performance Supplier Award from Inotera Memories, Inc., a wholly-owned subsidiary of Micron Technology, Inc. For the second consecutive year, Cabot Microelectronics was recognized for demonstrating outstanding performance in quality, technical service, safety, cost and logistics, for the period July 2015 through June 2016.

“Inotera, recently acquired by Micron, is a strategic memory customer and we are honored to have earned its prestigious Outstanding Performance Supplier Award,” said David Li, President and CEO of Cabot Microelectronics. “We believe this repeated recognition is evidence of our ongoing commitment to being a long-term partner offering a broad portfolio of best-in-class CMP solutions, while successfully delivering to the highest standards for quality, performance and technology. We look forward to building upon our strong relationship with this leading memory player in the future.”

A celebration to honor supplier award winners was held in Taiwan on October 19, 2016.

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, helping to enable 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. The company has approximately 1,125 employees on a global basis. For more information about Cabot Microelectronics Corporation, visit www.cabotcmp.com or contact Trisha Tuntland, Director 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; growth or contraction, and trends in the industry and markets in which the company participates; the company’s management; various economic factors and international events; regulatory or legislative activity; 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; the company’s supply chain; natural disasters; the acquisition of, investment in, or collaboration with other entities; uses and investment of the company’s cash balance, including dividends and share repurchases, which may be suspended, terminated or modified at any time for any reason, based on a variety of factors; financing facilities and related debt, payment of principal and interest, and compliance with covenants and other terms; the company’s capital structure; the company’s current or future tax rate; and the 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 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, 2016, filed with the SEC. Cabot Microelectronics assumes no obligation to update this forward-looking information.

For more information about Cabot Microelectronics Corporation,
visit www.cabotcmp.com or contact Trisha Tuntland,
Director of Investor Relations at 630-499-2600