The project "Resource efficient and resilient production of critical transition metals" aims to develop technologies for sustainable and climate neutral copper production. Through pilot trials, development of existing production processes will be carried out with respect to important process parameters such as injection efficiency, temperature, etc. Development of new methods for increased injection efficiency and reducing agents is expected to support Boliden in its planned transition, but will at the same time be utilized for other metal industry where efficient replacement of injected energy carriers and reducing agents is in demand.