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CORNING Corning Incorporated www.corning.com News Release FOR RELEASE – April 27 , 2021 - Corning's First - Quarter Results Reflect Strong Start to 2021 Core sales grew 29 % year over year ; core EPS increased 125 % year over year Free cash flow grew year over year to $ 372 million All segments grew double digits year over year with momentum expected to continue throughout 2021 _ CORNING , N.Y. - Corning Incorporated ( NYSE : GLW ) today announced results for the first quarter ended March 31 , 2021 . Corning reported a strong first quarter : . • GAAP and core sales were $ 3.3 billion , year - over - year increases of 38 % and 29 % , respectively GAAP EPS was $ 0.67 , reflecting strong performance and a non - cash , mark - to - market gain associated with the company's currency - hedging contracts • Core EPS grew 125 % year over year to $ 0.45 • • All segments grew sales and net income by double - digit percentages year over year O Environmental Technologies grew sales 38 % and net income 111 % ○ Specialty Materials grew sales 28 % and net income 78 % Optical Communications grew sales 18 % and net income 283 % ○ О Life Sciences grew sales 16 % and net income 26 % ○ Display Technologies grew sales 15 % and net income 40 % Free cash flow of $ 372 million grew $ 691 million year over year and equates to 39 % of 2020 total Profitability was impacted by approximately $ 50 million due to elevated freight and logistic costs and global supply chain disruptions Wendell P. Weeks , chairman and chief executive officer , said , “ We are off to an outstanding start in 2021. Our success in the first quarter is yet another proof point that we have built a stronger , more resilient company . And we're confident that we can build on these results to maintain momentum throughout the year . " Weeks continued , “ Corning is uniquely qualified to address some of the world's toughest challenges . Our innovative capabilities put us at the heart of multiple trends that are reshaping the world . This provides a powerful source of long - term growth as we drive more Corning content into the industries we serve . " Weeks concluded , " We remain steadfast in our commitment to support our people , customers , and communities by applying the strength of our products and resources . ” © 2021 Corning Incorporated . All Rights Reserved .