The unique approach of La Mesta with the support of its parent company AET Group, is to have access to a new thinking in terms of technology : by adding the competences of chemists together with engineers, making them work together, a scale-up issue for example can find a different and unique solution. Live examples are the implementation of Raptor ® and set-up of a optimized and dedicated 27 m3 reactor in La Mesta Chimie Fine.