Karen Laird [email protected] See All Staff Page Recent Stories Buitink barrier device protects drivers from coronavirus Covestro to use home-grown chlorine technology in Tarragona Covestro is planning to build its own chlorine production plant here, using a homegrown process: oxygen-depolarised cathode technology. Huntsman-Clariant merger off Clariant and Huntsman jointly announced on 27 October that they had mutually terminated the proposed merger of equals announced last May