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Exhibit 99.1 Celanese Celanese Corporation 222 West Las Colinas Blvd. Suite 900N Irving , Texas 75039 Celanese Corporation Reports First Quarter 2021 Earnings ; Raises Full Year Financial Outlook Dallas , April 22 , 2021 : Celanese Corporation ( NYSE : CE ) , a global chemical and specialty materials company , today reported first quarter GAAP diluted earnings per share of $ 2.83 and adjusted earnings per share of $ 3.46 . Net sales for the quarter were $ 1.8 billion as pricing increased by 15 percent from the prior quarter , more than offsetting a volume decline of 3 percent . In anticipation of Winter Storm Uri , the Company proactively brought down its three production facilities in Texas to protect its employees and assets . The Company subsequently flexed its global procurement and production networks to manage industry supply chain disruptions . Despite significant first quarter costs associated with the winter storm , the Company delivered operating profit of $ 326 million and adjusted EBIT of $ 482 million , both increases over pre - COVID earnings in the first quarter of 2020. During the quarter , the Company returned $ 328 million of cash to shareholders in the form of share repurchases and dividends . The Company continues to take actions to lift its earnings and cash generation profile , which along with a strong balance sheet , provide capacity to invest across a number of strategic growth priorities . The difference between GAAP diluted earnings per share and adjusted earnings per share for the first quarter was primarily due to a $ 41 million adjustment for fixed overhead , freeze - related repairs , and restart costs related to Winter Storm Uri . " As demand fundamentals continued to improve coming out of a very challenging 2020 , we experienced unprecedented disruption as a result of Winter Storm Uri , including direct impacts to our employees and production facilities in Texas as well as extensive industry supply chain challenges . Our teams responded with great agility to repair and restart our facilities quickly and to navigate hundreds of obstacles to source , manufacture , and ship our products to our customers . Amid continuing supply chain and raw material challenges , we finished the first quarter with momentum and expect to deliver strong earnings performance across the remainder of 2021 , " said Lori Ryerkerk , chairman and chief executive officer . 1