project management - replacement of alumina sulphate by ferric chloride in coagulation and total remelting of the mud queue at the Angle Guignard plant - securing the reactive workshop at the Marillet plant

project management mission for the replacement of alumina sulphate by ferric chloride in coagulation and total remelting of the mud queue at the Angle Guignard plant and securing the reactive workshop at the Marillet plant