20220233 SSUUSTSTAAINAINABBILITILITY REY REPPORORTT About Kiewit Message from Management Kiewit is one of North America’s largest and most respected construction and engineering organizations. 2023 REVENUE2023 REVENUE 2023 EMPL2023 EMPLOOYEEYEESS 1. Overview Our roots date back to 1884 when we got our start as a About Kiewit masonry contractor in Omaha, Nebraska. 11 7.7.11 31,31,100100 Sustainability at Kiewit Today, we o昀昀er construction and engineering services Our Projects in a variety of markets including transportation; BILLIONBILLION EMPLEMPLOOYEEYEESS oil, gas and chemical; power; marine; water; building; 2. Governance industrial; and mining. Corporate Governance ENGINEERING NEWENGINEERING NEWSS-RE-RECORD RANKINGSCORD RANKINGS Kiewit is one of the largest privately held, employee- Supply Chain owned firms in North America. We value our reputation 3. Environmental as a true meritocracy. #2#2 #1#177 Environmental Stewardship We operate through a network of subsidiaries in the TTOP 400OP 400 TTOP 500OP 500 United States, Canada, Mexico and Guam. CONTRACONTRACCTTORSORS DEDESIGN FIRMSSIGN FIRMS Greenhouse Gases & Energy Consumption 4. Social ON-ON-SITE RANKINGSITE RANKING Health & Safety Diversity, Equity & Inclusion #7#7 Talent & Workforce TTOP 40OP 40 Development CONTRACONTRACCTTORSORS Community Engagement IN CIN CANADANADAA Appendix 4444