This Practice Note provides a high-level summary of key themes of comparison between the UK and EU in relation to supply chain sustainability that have arisen since the UK exited the EU on 31 December 2020 (IP Completion Day). Specifically, this Practice Note considers key areas of comparison in relation to corporate governance, environment, human rights and forced labour, fraud and corruption, and minerals but it does not cover all issues which may be relevant to supply chain sustainability. Background Supply chain sustainability refers to the management of environmental, social, and economic impacts throughout the entire lifecycle of goods and services, from raw material sourcing to final delivery and beyond. It involves embedding environmental, social and governance (ESG) principles into supply chain operations to ensure that business practices are ethical, responsible, and resilient. This includes: • environmental considerations—reducing carbon emissions, minimising waste, preventing deforestation, and using resources efficiently • social considerations—ensuring fair labour practices, protecting human rights, and promoting safe working conditions across all tiers of the supply chain • governance considerations—implementing anti-corruption measures, ensuring transparency, and complying