Cabot Microelectronics Corporation Earns Supplier Award From TSMC for the Second Consecutive Year

Aurora, Illinois, UNITED STATES

AURORA, Ill., Dec. 7, 2009 (GLOBE NEWSWIRE) -- Cabot Microelectronics Corporation (Nasdaq:CCMP), the world's leading supplier of chemical mechanical planarization (CMP) polishing slurries and growing CMP pad supplier to the semiconductor industry, announced today that it has been selected as one of only four materials suppliers to receive a Supplier Award from the Taiwan Semiconductor Manufacturing Company (TSMC) for supplying CMP polishing slurries and pads.

The TSMC award is granted to suppliers who demonstrate excellence across a variety of areas, including product quality, cost of ownership, on-time delivery, world-class service, and a commitment to technology and safety. This year's award theme was focused on Thriving Amid Economic Uncertainty, a business reality in which Cabot Microelectronics continuously looks for opportunities to improve performance, while reducing costs. TSMC presented the award to Cabot Microelectronics at a ceremony in Hsin-Chu Taiwan on December 4, 2009.

William Noglows, Chairman and CEO of Cabot Microelectronics stated, "As a long-term supplier and partner to TSMC, we are once again honored to receive this important supplier award. We plan to continue to invest in our infrastructure, manufacturing, and research and development capabilities to ensure that TSMC can continue to count on us to deliver world class products and customer support well into the future."


Cabot Microelectronics Corporation, headquartered in Aurora, Illinois, is the world's leading supplier of CMP polishing slurries and growing CMP pad supplier to the semiconductor industry. The company's products play a critical role in the production of the most 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 900 employees on a global basis. For more information about Cabot Microelectronics Corporation, visit or contact Amy Ford, Director of Investor Relations at (630) 499-2600.

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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 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; the acquisition of or investment in other entities; uses and investment of the company's cash balance; and the construction 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, 2009, filed with the SEC. Cabot Microelectronics assumes no obligation to update this forward-looking information.


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