The European Commission fined Sunpor, Synbra, Synthomer, Synthos and Trinseo a total of € 157 million for participating in a cartel regarding purchases on the styrene monomer merchant market. The press release dated 29 November 2021 about the decision of the European Commission is available at https://ec.europa.eu/commission/presscorner/detail/en/ip_22_7168