Investor Presentaiton

STRATEGIC TRANSFORMATION Today Arcosa is a less cyclical and more resilient company Construction Products has Increased to Approximately 60% of Adjusted EBITDA Adjusted EBITDA, excluding Corporate ($M) 399 56 (14%) 219 64 (29%) 101 (25%) • Actionable Strategic Progress to Position Portfolio for Long-Term Growth Divestiture of storage tanks business for $275 million in October 2022 • Invested ~$1.4 billion on 5 large acquisitions and multiple complementary . . bolt-ons to expand our Construction Products platform Grew natural aggregates operations beyond Texas, now serving 11 Top 50 MSAs, up from 5 at the end of 2018 • Added recycled aggregates to complement natural aggregates platform, serving 3 Top 5 MSAs • • 82 (38%) 242 (61%) 73 Expanded specialty materials platform with broader geographic presence and product diversity Added 3 adjacent infrastructure-related product lines of traffic, telecom, and concrete structures ⚫ Market leading positions in our cyclical businesses, including barge, wind towers, and steel components, position us well for recovery (33%) FY 2018 LTM 9/30/23 Engineered Structures Construction Products Transportation Products See Adjusted Segment EBITDA reconciliations in the Appendix. 11 MOVING INFRASTRUCTURE FORWARD | 2023 $1T Infrastructure Bill and $370B Inflation Reduction Act Create Multi- Year Tailwinds for Many Arcosa Businesses A

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