German steel maker Salzgitter AG announced that in pursuing its SALCOS program, Salzgitter AG is pioneering low CO2 steel production and is now playing a leading role in decarbonization. The new low-CO2 process which involves the direct reduction of iron ore followed by smelting in an electric arc furnace results in a different type of furnace slag which must be modified accordingly in order to continue to be of use as a valuable and sustainable raw material. How the new type of electric arc furnace slag can be used in future, especially in the cement industry, as a CO2-saving clinker replacement instead of the ground granulated blast furnace slag currently employed, is the subject of the DRI-EOS research project that has just been launched. The project is supported by the German Federal Ministry for Education and Research BMBF and coordinated by the FEhS Building Materials Institute. The other project partners are Salzgitter Mannesmann Forschung, the Federal Institute for Materials Research and Testing BAM, Friedrich Rohstoffe, Holcim Deutschland and LOI Thermprocess. The project is expected to run for four years. Salzgitter Mannesmann Forschungbundles the central research activities of the Salzgitter Group. SZMF combines a wealth of knowledge and long years of experience in application-oriented research projects in areas such as the efficient use of resources in the production of steel.