Celanese Corporation CE Number of class action complaints

As previously reported, in July 2020, the Company settled a European Commission competition law investigation involving certain of its subsidiaries and three other companies related to certain past ethylene purchases. Shell Chemicals Europe ("Shell"), certain Repsol entities ("Repsol") represented by Stichting Ethylene Claims (the "Stichting"), TotalEnergies, OMV, Borealis, LyondellBasell, and certain Versalis entities represented by the Stichting have each filed separate claims for damages with the District Court of Amsterdam against four companies, including the Company, arising from those activities. Hearings have been held in certain of these matters. On July 30, 2026, the Court published rulings in the Shell and Repsol matters finding the claimants' damages claims not plausible and dismissing in their entirety all claims against the Company and the three other companies. BASF, Dow, ExxonMobil, BP, MOL Group and Braskem have filed similar claims against the Company in the Court of Munich, Germany, and Dow filed a second claim against the Company and others in the Court of Dortmund, Germany. To date, 14 claims have been filed against the Company and other ethylene purchasers since 2023; however, two of these claims have been dismissed, as detailed above, and are subject to appeal. It remains possible that new or existing claimants may assert additional claims or seek additional damages associated with the 2020 European Commission settlement. The Company expects additional hearings will take place and briefings will be filed in 2026. At this time, the Company cannot estimate but continues to assess any potential impact of these matters. The Company aggressively disputes these claims and intends to vigorously defend itself against them.