20220233 SSUUSTSTAAINAINABBILITILITY REY REPPORORTT Greenhouse Gases & Energy Consumption Message from Management ObjecObjectivtive:e: TTrrack and underack and underssttandand Building the infrastructure and energy projects our LED lighting and low E glass. We are also working to our grour greenhouse gas emissions andeenhouse gas emissions and communities depend on requires the input of people, understand the practicality of additional ways to lower our 1. Overview enerenergy consumpgy consumption, and idention, and identifytify equipment and materials. Our mobile equipment fleet energy consumption, like adding solar arrays to our owned and demonsand demonstrtraatte opporte opportuniunities tties too and fixed facilities are primary sources of scope 1 and 2 facilities. Standardizing furniture options allows us to better About Kiewit emissions for our construction operations. share and reuse materials across o昀昀ices and job sites. Sustainability at Kiewit rreduce our emissionseduce our emissions, t, to opero operaattee Our Projects our business wiour business with the loth the lowwesest carbont carbon We have a focused e昀昀ort on reducing the carbon impact Carbon emissions in construction materials are the ffooootprintprint prt pracactical.tical. of our equipment fleet. We work closely with equipment primary source of our scope 3 emissions. We are working 2. Governance manufacturers to select the most e昀昀icient and productive with our largest suppliers to improve our understanding machines to build our work. Through ongoing fleet of the largest sources of these emissions. Our project Corporate Governance replacements and modernization, we ensure best available teams are encouraged to think creatively to minimize the Supply Chain Strategies technology is incorporated into our equipment fleet. environmental footprint of our operations, including reusing Operator training is fundamental to our business, enabling materials. Subject matter experts continue to educate 3. Environmental ■ Continuously improve greenhouse gas safe, e昀昀icient and productive operations. themselves on the application of low carbon products. Environmental Stewardship emissions accounting methods We’re intentional about identifying opportunities to We are committed to continuous improvement of our data Greenhouse Gases & ■ Improve visibility of equipment idling minimize energy consumption at our fixed facilities. For collection processes to better understand the sources of Energy Consumption and compliance with company idling newly built and remodeled facilities, our standards call for our emissions. With better information, we can create policy features like white thermoplastic polyolefin (TPO) roofing, more informed strategies for reduction. 4. Social ■ Partner with major equipment Health & Safety suppliers to identify and demonstrate Diversity, Equity & Inclusion improvements to equipment technology Talent & Workforce ■ Evaluate opportunities to reduce Development energy consumption at our fixed Community Engagement facilities ■ Leverage machine data to optimize Appendix energy management strategies, including energy storage systems, alternative fuels and application of specific solutions 4040