Secondary production is the process of recycling aluminum scrap into aluminum that can be used again — an environmentally sound process that is 92 percent more energy efficient than primary production. The increased adoption of recycled aluminum in manufacturing has created significant economic and environmental wins for both industry and consumers.

Master alloys facilitate the addition of defined alloy components particularly those with a high melting point (e.g. grained additives like oxides or bromides). The use of master alloys enables exact dosing and quicker distribution of additives in the melt. Aluminum master alloys are standardized in EN 575.