The Final International Cost Action Conference will be held in Skellefteå, Sweden; from May 19 to May 21. The objectives of this conference are to present and discuss the state-of–the-art of Thermo-Hydrous (TH) and Thermo-Hydro-Mechanical (THM) wood treatment in open and closed systems and the challenges faced in wood characterization for scaling-up from laboratory to full industrial production, through a discussion of the latest research results and new ideas.