The German Society for Refractory and Chimney Construction (Deutschen Gesellschaft Feuerfest- und Schornsteinbau e.V.) initiated a project to build climate-stable and multifunctional forests in Nordrhein-Westfalen. 10,500 trees were planted. REFKO Feuerfest GmbH participated as a sponsor and supported the project with 1,000 trees.
Certificate of the German Society for Refractory and Chimney Construction e.V.