The recertification of Hydro Extrusions ASI Performance Standard certification has just been finalized and is now valid through May 2025. It covers 47 sites, tops among extrusion companies worldwide, and more are on the way. In addition, more than two-thirds of the sites have also achieved ASI Chain of Custody certification, which sets out requirements for the creation of a chain of custody for CoC material, including ASI Aluminium, which is produced and processed through the value chain into the downstream sectors.It means not only that the sites and their practices are certified but that the physical metal they process also is certified, when obtained from ASI-certified sources.The 47 ASI-certified sites in Hydro Extrusions are located in Asia, Europe and South America. Next up is the business area’s manufacturing plant in Taicang in China, which just completed its certification audit.Hydro Extrusions plants in Canada, Mexico and the United States are in the early stages of their preparation for ASI certification, according to Jean-Marc Moulin, who is leading the work for the business area as its director of sustainability.In addition to the extrusion sites, Hydro operations in its Aluminium Metal and Bauxite & Alumina business areas are also certified according to ASI’s two standards.The Aluminium Metal certifications cover aluminium smelting, casthouse activities and recycling at Hydro’s fully owned sites, and the joint venture plant Albras in Brazil. Hydro’s Paragominas bauxite mine and Alunorte alumina refinery in Brazil are also ASI-certified. Alunorte is the world’s largest alumina refinery outside China.