20220233 SSUUSTSTAAINAINABBILITILITY REY REPPORORTT Corporate Governance Message from Management CorCore Ve Valuesalues Over the years, we have refined these principles into a set of core values built around our People, Integrity, Excellence Learn more about our Core 1. Overview Kiewit has thrived on a strong foundation of principles and Stewardship. CORE since our inception. As our company evolves, we must VALUES Values: Core Values Handbook About Kiewit address that the environment in which we operate is Our Core Values help drive ethical and sustainable Sustainability at Kiewit more global, diverse and complex. business decisions — decisions that are right for our Our Projects company, employees, clients, partners and communities. Our principles provide us guidance when we are faced Values remain our company’s cornerstone and, along with 2. Governance with changing elements and ethical questions. Along with their expected behaviors, these values clarify relevant company policies, are the sum of our business and communicate our view, passed from one generation to ethics conduct, including how we operate as a responsible Corporate Governance the next, about how to do the right thing. Today, our Core and engaged corporate citizen. Supply Chain 3. Environmental Environmental Stewardship Greenhouse Gases & PEOPLE EXCELLENCE Energy Consumption 4. Social INTEGRITY STEWARDSHIP Health & Safety Diversity, Equity & Inclusion Talent & Workforce Development Community Engagement Appendix 18181818