Chempark is an industrial park for The chemical industry in Germany. It is distributed across three sites in Leverkusen, Dormagen and Krefeld-Uerdingen cumulatively measuring 13.3 square kilometres, occupied by more than 60 companies and employing 50,000 people. Around one third of North Rhine-Westphalia’s chemical output is produced at these three sites. It is operated by Currenta GmbH & Co. OHG, formerly known as Bayer Industry Services GmbH & Co. OHG.