20220233 SSUUSTSTAAINAINABBILITILITY REY REPPORORTT Message from Message from Management Management 1. Overview This year we celebrate Kiewit's 140th anniversary. Through decades of Summit (Pg. 61) and Thurgood Marshall College Fund Immersion Program About Kiewit change, our growth has been driven by long-term strategic vision and (Pg. 63), and reimagine how we train our newly hired entry-level engineers Sustainability at Kiewit a commitment to doing business the right way. (Pg. 73), there were a lot of exciting developments at Kiewit last year. It’s Our Projects We’ve grown from a small masonry contractor in Omaha, Nebraska, to important work that we continue to build upon to ensure the long-term being one of North America’s largest and most respected construction and success of our organization. 2. Governance engineering firms, serving eight major markets. The same entrepreneurial I’m proud to work alongside this generation of Kiewit leaders and Corporate Governance employees. We’re guided by our Core Values – People, Integrity, Supply Chain spirit that led to our expansion beyond vertical building into public infrastructure nearly 100 years ago, is evident in Kiewit teams tackling Excellence and Stewardship – and committed to doing what’s right for 3. Environmental the increasingly complex energy transition and infrastructure projects our all our stakeholders, including employees, clients, business partners Environmental Stewardship communities need today. and the communities we support. Greenhouse Gases & You can see this long-term vision not only in our expansion into new On behalf of everyone at Kiewit, thank you for reading our 2023 Energy Consumption markets and geographies, but also in the way we operate our business. Sustainability Report. 4. Social When our Kiewit predecessors began requiring hard hats in the 1940s and Health & Safety full-time safety supervisors on projects in the 1950s, it was considered RICK LANOHARICK LANOHA Diversity, Equity & Inclusion forward-thinking. Today, using data-driven solutions to predict and prevent President and Chief Executive O昀昀icer Talent & Workforce safety incidents that could happen on our jobs is changing the way we Development train our people to ensure Nobody Gets Hurt. Community Engagement In this report, we share highlights from throughout 2023 about what we Appendix design and build and how we operate our business. From the continued e昀昀orts to reduce the carbon impact of our equipment fleet (Pg. 44), diversify our workforce through programs like our Future Women in Kiewit 2222