20220233 SSUUSTSTAAINAINABBILITILITY REY REPPORORTT Featured Stories Message from Management Protecting the desert tortoise in the Nevada desert 1. Overview In the Nevada desert, Kiewit Power Constructors crews on Primergy’s Gemini solar project are responsible About Kiewit for following protective measures in coordination Sustainability at Kiewit with Primergy and third-party consultants to project Our Projects the endangered tortoise and its habitat. Some of the measures implemented include: 2. Governance ■ Tortoise fence keeps any tortoise that makes it back Corporate Governance to the construction site from getting into work areas. Supply Chain The fence is installed in a 12-inch trench, whereas typical silt fence would sit in a 4- to 6-inch trench. 3. Environmental ■ Tortoise crossings go underneath roadways and Environmental Stewardship provide tortoises with safe passage. Greenhouse Gases & ■ 360-walk-arounds are required before getting into Energy Consumption any vehicles or equipment to ensure no tortoises are in harm’s way. A 15 mile per hour speed limit is 4. Social also in place. Health & Safety Diversity, Equity & Inclusion Gemini’s Environmental team covers environmental protective measures in detail during onboarding for sta昀昀, Talent & Workforce craft and subcontractors. Development Community Engagement Training delivery drivers also became a big emphasis for Gemini. Many arrive to make deliveries to both Kiewit and Appendix the client, Primergy. Fliers in both English and Spanish help inform the drivers of requirements such as the 15 mile per hour speed limit, 360-walk-arounds, and the importance of ensuring vehicles stay on marked paths. Tortoise crossing Tortoise fence 3333