The objectives of this report have been to present an overview of the surface treatment (STM) industry and the legal framework for implementation of the IED directive in the Nordic countries. The project describes currently used Best Available Techniques (BATs) in the STM industry in the Nordic countries. Further the project describes the key environmental aspects of the STM sector relating to the use of raw materials, resource use of energy and water, emissions to surface- and groundwater, the generation of solid and liquid wastes. For the final part of the project, twelve BAT candidates and four new emerging techniques are described. The techniques are focusing on resource use, emissions to water, waste management, circular economy, energy use. Optimisation, closed loop systems, digitalisation and automation are common denominators.