Home Polymers Main Navigation Mission & Values Company History Environmental, Health, Safety & Security Our Culture Community Involvement Leadership Financials Suppliers Polymers While polymers are exempt from the regulation, monomers and certain additives used in the manufacturing of polymers are not exempt and must be pre-registered by the manufacturer and/or importer. We can confirm that monomers and additives in our polymers manufactured or imported by Chevron Phillips Chemicals International N.V. have been successfully pre-registered with the European Chemical Agency.