Halliburton 2021 Annual & Sustainability Report Social 51 S1 Health and Safety At Halliburton, solving our customers’ operational challenges is second only to keeping our employees and contractors healthy and out of harm’s way. Because safety is paramount, Halliburton has extensive and long-term safety programs and processes in place, including our Journey to ZERO initiative, Halliburton Critical Focus Areas, Stop Work Authority, Management of Change, Significant Incident Review, and Tiered Assurance. For more information about health and safety at Halliburton, please visit the Health, Safety, Environment, and SQ section on our website. In 2021, the COVID-19 pandemic continued to create significant challenges for our business operations. To tackle these headwinds, we relied on our established crisis-management team to administer our COVID-19 response, manage our supply chain, and assign personnel to safely meet customer requirements. Our success came from close collaboration with our employees, suppliers, and customers, and our proven ability to adapt to evolving regulatory and country protocols as well as customer requirements.