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Hydro Aluminium Metal, a business area of Norsk Hydro ASA, is a leading supplier of aluminium casthouse products. Products are supplied in the form of extrusion ingots, sheet ingots, foundry alloys, forging ingots, wire rods and standard ingots with a total volume of over 3 million metric tons per year. The production is carried out in a network of recycling units in Europe and North America, five fully owned primary plants situated along the west coast of Norway and in partly owned smelters in Qatar, Brazil, and Canada. This EPD covers the production of Extrusion Ingots sold as Hydro REDUXA 4.0, from the casthouses in the primary plants in Sunndal, Karmøy and Husnes all located in Norway. Hydro REDUXA 4.0 is a low-carbon aluminium brand by Hydro Aluminium estimated to have generated a maximum 4.0 kg CO2-equivalents per kg of aluminium for the aluminium fraction (excluding alloying elements) of the ingot at gate. The scope covers production of raw materials, energy and aluminium from mine to metal produced at Hydro’s Norwegian smelters, following the guidelines from the International Aluminium Institute (IAI 2018). The IAI scope is therefore excluding a few elements that are covered in this EPD