First-Quarter Results Conference Call DetailsEntegris will hold a conference call to discuss its results for the first quarter on Tuesday, April 23, 2013, at 10:00 a.m. Eastern Time. Participants should dial 719-325-2402 or toll-free 888-510-1765, referencing confirmation code 6780614. Participants are asked to dial in 5 to 10 minutes prior to the start of the call. A replay of the call will be available starting April 23 at 1:00 p.m. (ET) until June 6, 2013. The replay can be accessed by using passcode 6780614 after dialing 719-457-0820 or 888-203-1112. A live and on-demand webcast of the call can also be accessed from the investor relations section of Entegris' website at www.entegris.com . About Entegris Entegris is a leading provider of a wide range of products for purifying, protecting and transporting critical materials used in processing and manufacturing in the semiconductor and other high-technology industries. Entegris is ISO 9001 certified and has manufacturing, customer service and/or research facilities in the United States, China, France, Germany, Israel, Japan, Malaysia, Singapore, South Korea and Taiwan. Additional information can be found at www.entegris.com . Non-GAAP Information The Company's consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States (GAAP). Adjusted EBITDA and Adjusted Operating Income together with related measures thereof, and non-GAAP EPS, are considered "Non-GAAP financial measures" under the rules and regulations of the SEC. These financial measures are provided as a complement to financial measures provided in accordance with GAAP. We provide non-GAAP financial measures in order to better assess and reflect operating performance. Management believes the non-GAAP measures help indicate our baseline performance before certain gains, losses or other charges that may not be indicative of our business or future outlook. We believe these non-GAAP measures will aid investors' overall understanding of our results by providing a higher degree of transparency for certain expenses and providing a level of disclosure that will help investors understand how we plan and measure our business. The presentation of non-GAAP measures is not meant to be considered in isolation, as a substitute for, or superior to, financial measures or information provided in accordance with GAAP. The calculations of Adjusted EBITDA margin, Adjusted Operating Income, and non-GAAP EPS are included elsewhere in this release.