The main risks associated with our sustainability reporting relate to the accuracy and completeness of data, especially where ESG data is derived from financial data, dependent on input from suppliers, or based on estimates. To reduce these risks, we use third-party verified data: all financial input data used are sourced from data subject to external assurance, and for supplier input data, we use third-party standards and systems, such as EcoVadis. Where we use estimates, we base these on widely used third-party datasets, such as EconInvent for carbon emission factors.