Exhibit 99.1(b) Celanese Q1 2019 Earnings Monday, April 22, 2019 Conference Call / Webcast Tuesday, April 23, 2019 10:00 a.m. Eastern Time Mark Rohr, Chairman and Chief Executive Officer Scott Richardson, SVP and Chief Financial Officer © Celanese Celanese Corporation 1 Important Information Forward-Looking Statements This presentation contains "forward-looking statements," which include information concerning the Company's plans, objectives, goals, strategies, future revenues, synergies, performance, capit ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 _________________________________________________________________________ Form 10-K þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Commission File Number) 001-32410 CELANESE CORPORATION (Exact Name of Registrant as Specified in its Charter) De ...

Celanese Corporation (NYSE:CE) Q4 2018 Earnings Conference Call January 29, 2019 10:00 AM ET Company Participants Chuck Kyrish – Vice President, Treasurer and Investor Relations Mark Rohr – Chairman and Chief Executive Officer Todd Elliot – Senior Vice President-Acetyl Chain Scott Richardson – Chief Financial Officer Conference Call Participants Vincent Andrews – Morgan Stanley David Begleiter – Deutsche Bank Mike Sison – KeyBanc Robert Koort – Goldman Sachs Ghansham Panjabi – Robert W. Baird Duffy Fischer ...