EOC Surfactants obtain GMP certification EOC Surfactants has obtained the certificate for ‘Good Manufacturing Practices’ (GMP) for its manufacturing site in Evergem. EOC Surfactants produces according to the GMP-guidelines, as put forward by the ‘European Federation for Cosmetic Ingredients’ (EffCI). The EFfCI-guidelines define the fundamental principles of good manufacturing processes, specifically for the production of ingredients to be used in cosmetic consumer products.