20220233 SSUUSTSTAAINAINABBILITILITY REY REPPORORTT Message from Management 1. Overview About Kiewit Sustainability at Kiewit Our Projects 2. Governance Corporate Governance Supply Chain 3. Environmental Environmental Stewardship Greenhouse Gases & Sustainability Governance Sustainability Committee Energy Consumption Consistent with our core values, Kiewit has a strong Responsibility for the ongoing planning and and provides progress reports and assessments to the record of upholding high standards of governance, ethics, implementation of the company’s sustainability program Executive Committee, which in turn informs and consults 4. Social compliance and risk management. Our governance belongs to Kiewit’s Sustainability Committee. This group with the company’s Board of Directors. The foundation Health & Safety framework for sustainability begins with our Board of operational and functional leaders includes on which Kiewit’s sustainability program is built is the Diversity, Equity & Inclusion Executive Committee, which is responsible for the direction representation from construction and engineering company’s compliance and risk management programs, Talent & Workforce and oversight of our programs and strategic e昀昀orts. The operations, accounting, communications, compliance, which provide operations and legal governance on key Development Executive Committee is ultimately responsible for how we corporate giving, environmental, equipment, human areas of business- and project-specific risks. Kiewit manage sustainability and ESG-related issues and risk. resources, legal, safety, supply chain and procurement, performs periodic reviews, enterprise risk assessments and Community Engagement technology and other key disciplines. The Sustainability project-specific risk identification and mitigation measures Appendix Our Sustainability Policy outlines our sustainability pillars Committee, under oversight of the Executive Committee, to supplement and enforce its compliance programs. and how this commitment is further supported through defines Kiewit’s sustainability material topics, identifies our Core Values and additional policies to ensure key strategies and deliverables, and analyzes data to make sustainability principles in our company. This includes informed decisions to ensure continued progress toward addressing how we work with our supply chain partners our sustainability goals. This committee meets monthly to drive sustainable practices. 6666