The 4^th Project Meeting of the European project “KET4F-GAS: Reduction of the Environmental Impact of Fluorinated Gases in the Sudoe Space through Key Enabling Technologies”, took place in Santiago de Compostela on December 3, 2019. During the meeting, a summary of the activities developed over the past six months was presented. Moreover, the awareness seminar “Mitigation of the Environmental Impacts of Fluorinated Gases in the Sudoe Region” was celebrated, with participation of experts in the sector, researchers and public administration discussing the progress and territorial strategies. @interregsudoe #KET4FGas