Clariant rejects allegations from BP Europe and ExxonMobil against four companies related to the 2020 competition law infringement

AD HOC ANNOUNCEMENT PURSUANT TO ART. 53 LR

Muttenz, 03 October 2025 – Clariant, a sustainability-focused specialty chemical company, today announced that on 02 October 2025, the company received two claims for damages against four companies, including Clariant, from BP Europe SE and ExxonMobil Petroleum & Chemical B.V. with the court of Munich and Dortmund respectively, both in Germany. The claims allege damages totaling to around EUR 1.1 billion and EUR 860 million respectively, in relation to infringement of competition law on the ethylene purchasing market which was sanctioned by the European Commission in July 2020. Clariant firmly rejects the allegations and will adamantly defend its position in the proceedings. Clariant has substantiated economic evidence that the conduct of the parties did not produce any effect on the market.