https://www.duke-energy.com/_/media/pdfs/our-company/https://www.duke-energy.com/our-company/investors/corporate-governance/code-of-ethics https://www.duke-energy.com/_/media/pdfs/partner-with-us/suppliercodeofconduct.pdf?la=en&_ga=2.36272036.541146390.1613093442-316438381.1591966580 62 | 2020 DUKE ENERGY SUSTAINABILITY REPORT / GOVERNANCE The company continuously reviews policies and tightens controls and oversight whenever opportunities to achieve higher levels of performance and accountability arise.