Brenntag CEO Christian Kohlpaintner to step down
May 21 (Reuters) - German chemicals distributor Brenntag BNRGn.DE said on Wednesday its CEO Christian Kohlpaintner would step down on August 31. The company has appointed Jens Birgersson, most recently head of Denmark's Rockwool Group, as new CEO and he will take over on September 1, said Brenntag. (Reporting by Anastasiia Kozlova in Gdansk Editing by Madeline Chambers) ((Anastasiia.Kozlova@thomsonreuters.com;))