Paul Thomas has a PhD in aquatic ecotoxicology and more than 20 years’ experience with industrial chemicals, agrochemicals and biocides gained at CIT then ATOFINA and AkzoNobel where he was head of the Ecotoxicology research laboratory and risk assessment group. He joined CEHTRA in 2008 as director of CEHTRA Lyon specialising in REACH issues and risk assessment and is manager of the CEHTRA ecotoxicology team. Since that time he has contributed strongly to numerous successful registrations out of the >300 substances that CEHTRA has registered since 2010. He has also championed the in Silico group and led the ECETOC group on relationships between Chemical Activity and toxicity. In March 2019 he was made Managing Director of CEHTRA France and he is also President of KREATiS SAS, the company he founded specialising in the development of High Accuracy In-Silico models to predict regulatory experimental endpoints.