Our People and Culture 90 2021 Sustainability Report Responsible Business Practices A Modern, High-Performing Health System Introduction Performance Data Environmental Health Our expectations UnitedHealth Group recognizes that we play an important role in advancing responsible environmental and social sustainability practices across our supply chain. We expect our suppliers to comply with our Supplier Code of Conduct , which touches on various social and environmental items and references requirements within our standard procurement contract language. Because UnitedHealth Group is entrusted with the protection of individuals’ most sensitive and personal health data, we place the utmost importance on protecting our data and information systems. We require suppliers with access to our information systems, customer data, or health plan member data to have the appropriate security controls when doing business with us, including maintaining their HITRUST certification or an acceptable third-party validated assessment. Measuring supplier performance We ensure key suppliers meet our performance expectations through a systematic Supplier Performance Management Program that monitors compliance with our Code of Conduct and monthly performance of contractual Service Level Agreements related to service delivery, quality and value delivery. Data-driven supplier performance scorecards are shared quarterly with executive leadership to identify performance trends and areas of opportunity to drive improvement plans for underperforming suppliers. Suppliers are evaluated on criteria such as financial stability, cybersecurity and regulatory compliance, organization resiliency, diversity participation and Net Promoter Score. Annually, we review the sustainability practices of critical suppliers to identify policies, practices and goals for waste and carbon reduction, recycling and other sustainability measurements. In 2021, we reviewed suppliers' sustainability performance representing 29% of our Enterprise Sourcing & Procurement program spend.