Responsible sourcing of construction products should involve managing a product from the point at which materials for the component parts are mined or harvested, through manufacture, processing, use and end-of-life to a suitable standard. This usually requires management of the supply chain and product stewardship considering social, economic and environmental factors. Responsible sourcing is assessed as part of building sustainability assessment schemes such as BREEAM and LEED.
There are now standards developed specifically for the aluminium value chain – the Aluminium Stewardship Initiative (ASI) Performance and Chain of Custody Standards.
ASI’s standards are applicable to all stages of aluminium production and transformation, specifically: bauxite mining, alumina refining, primary aluminium production, semi-fabrication (rolling, extrusion, forging and casting), material conversion, and refining and re-melting of recycled scrap, as well as material stewardship criteria relevant to downstream users of aluminium. CAB was part of the ASI Standards Committee leading up to the launch of the standards in December 2017. Existing ASI members in the ‘Production and Transformation’ and ‘Industrial Users’ categories are committed to achieving certification against the ASI Performance Standard by the end of 2019.
CAB is also a member of the BSI committee SDS/3/6 – Chain of custody, which is responsible for UK input into ISO/PC 308, currently working on a standard concerning general terminology, concepts, requirements and guidance related to chain of custody.