Synthomer PLC (LON:SYNT) said it is to be included in an investigation by the European Commission into practices relating to the purchase of styrene monomer.
Styrene monomer is an oily liquid that is used to make plastics, paints, synthetic rubbers, protective coatings and resins.
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The investigation is restricted to companies operating in the European Economic Area.
Polymers supplier Synthomer has been included in this investigation. As part of the process, the Commission visited Synthomer's London office this week.
Sythomer said it takes competition laws very seriously and will continue to fully cooperate with the Commission throughout its investigation.
The company is one of the world’s foremost suppliers of aqueous polymers and claims leadership positions in many markets.