Aluminium is the third most common element making up about 8,1% of the earth's crust with the oxygen of 46,6 and silicon of 27,7. This dependable source of row materials enables the utilization of a valuable material without depleting rare resource at the expense of future generations. More than 60% of the energy requirements for the extraction of primary aluminium from bauxite is met by hydroelectric power, and this percentage is on the rise.

Secondary aluminium, obtained by melting down aluminium scrap requires only 5% of the energy originally required to obtain primary aluminium. When new and old scrap is melted down, all the positive characteristics of aluminium are retained. Secondary aluminium can be used time and time again in several production cycles without suffering a reduction in quality. The high recycling rates - up to 85% in civil engineering - clearly demonstrate that recycling as value saving strategy is already being practised to a very large extent. The environment is not burdened by dumping or other waste management measured.