20220233 SSUUSTSTAAINAINABBILITILITY REY REPPORORTT Featured Stories CONTINUEDCONTINUED Message from Management Engaging externally to advance sustainability Collaborating with external groups and organizations best practices, including low carbon concrete strategies for Antommattei is an ACI Fellow and a member of its 1. Overview is one important way we help further industry progress di昀昀erent applications from design to construction on Kiewit board of directors. As an ACI member, Antommattei About Kiewit toward implementing more sustainable construction projects. Antommattei and other leaders are committed participates in many committees, including Committee Sustainability at Kiewit and engineering solutions. to understanding how changes to sustainability strategies 321: Durability Code and Committee 323: Low-Carbon Our Projects and materials to reduce carbon footprint of concrete Concrete Code. In Canada, he is the 1st Vice Chair of the Oscar Antommattei is Kiewit’s chief concrete may impact concrete properties, materials selection and CSA A23.1/A23.2: Requirements for Concrete Materials engineer and materials engineering director. He is a availability, constructability, strength development, long and Methods of Constructions/Test Methods and Standard 2. Governance member of Kiewit’s Chief Engineers Council (CEC), -term durability performance, field operations and more, Practices for Concrete. Antommattei is also the Kiewit Corporate Governance a fully-rounded organization with industry-recognized to help determine appropriate use cases. representative with the NIST Low Carbon Cements and Supply Chain subject matter experts representing all facets of work Concrete Consortium. across Kiewit’s markets. In addition to his leadership within Kiewit, Antommattei 3. Environmental has co-authored multiple papers about concrete types “It takes a lot of di昀昀erent contributors to successfully In this role, Antommattei works closely with internal and facilitated technical training on concrete topics deliver construction projects and it’s important that Environmental Stewardship colleagues to provide subject matter expertise on all for numerous industry groups throughout North America. contractors and design engineers – like Kiewit – are part Greenhouse Gases & things concrete. This includes continuing to build the He is a member of multiple concrete-focused organizations, of the solution for developing the industry's sustainability Energy Consumption company’s knowledge base in sustainable construction including the American Concrete Institute (ACI), standards,” said Antommattei about the importance of his CSA Group, ASTM International and Transportation and Kiewit’s engagement in industry initiatives. 4. Social Research Board. Health & Safety Diversity, Equity & Inclusion Talent & Workforce Development Community Engagement Appendix 4646