Sustainable supply-chain optimization is the process of ensuring that all aspects of the supply chain, from manufacturing to sales, are being done in the most optimal and energy efficient way [1]. This is an integral part of any manufacturing company and is especially true in the metal packaging industry. In the past metal packaging has been seen as an energy intensive and non-emissions friendly process, but this is no longer true. With an optimized supply chain and higher rates of recycling metal packaging is actually a more carbon emission friendly process than plastic packaging. A sustainably optimized supply chain produces 1.87 tonnes of CO2-e per tonne of aluminium and 2.2 tonnes of CO2-e per tonne of plastic produced [2,3]. This is an easy way for companies looking to reduce their carbon footprint to make a change. For a supply chain to be sustainably optimized there are a few areas that need to be reviewed: overall production efficiency, the metal packaging supplier, transportation, and sales.
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