Corporate governance
Board Committees
The Board carries out much of its work through standing committees, each operating under a written charter that it reviews annually.
Audit Committee
Oversees the integrity of the financial statements, the independent auditor’s qualifications and independence, the performance of the internal audit function, the enterprise risk management framework, and compliance with legal and regulatory requirements. The committee met eight times in 2025.
Members
Beatrix VandermolenChair
Retired Assurance Partner, Halloran Peck LLP
IndependentAudit committee financial expert
Gwendolyn Aparicio
Retired Chief Financial Officer, Allegheny Regional Utilities
IndependentAudit committee financial expert
Maribel Castellanos
Executive Vice President and General Counsel, Sentinel Rail Holdings
Independent
Yusuf Demirci
Former Chief Financial Officer, Caldwell Infrastructure Partners
IndependentAudit committee financial expert
Compensation and Human Capital Committee
Determines the compensation of the Chief Executive Officer and other executive officers, administers the equity incentive plans, oversees human capital management, succession planning and pay-equity review, and reviews the relationship between compensation and risk. The committee met six times in 2025.
Members
Hollis TrangChair
Chief Executive Officer, Brightwater Industrial Partners
Independent
Emeka Balogun
Professor of Civil and Environmental Engineering, Lehigh University
Independent
Ilse Rautenbach
Former President, International Division, Cordero Building Products
Independent
Nathaniel Okonkwo
Former Chief Operating Officer, Meridian Engineering Group
Independent
Nominating and Corporate Governance Committee
Identifies and recommends director candidates, reviews Board composition, independence and committee assignments, oversees the annual Board and committee self-evaluation, and recommends changes to the Corporate Governance Guidelines. The committee met five times in 2025.
Members
Gwendolyn AparicioChair
Retired Chief Financial Officer, Allegheny Regional Utilities
Independent
Franklin Ashworth-Doyle
Managing Partner, Ashworth Land & Mineral Advisors
Independent
Hollis Trang
Chief Executive Officer, Brightwater Industrial Partners
Independent
Maribel Castellanos
Executive Vice President and General Counsel, Sentinel Rail Holdings
Independent
Safety, Health and Environment Committee
Oversees the safety management system, occupational health programmes, environmental compliance, quarry reclamation obligations, climate-related risk and the Company’s sustainability reporting. The committee met four times in 2025.
Members
Nathaniel OkonkwoChair
Former Chief Operating Officer, Meridian Engineering Group
Independent
Emeka Balogun
Professor of Civil and Environmental Engineering, Lehigh University
Independent
Franklin Ashworth-Doyle
Managing Partner, Ashworth Land & Mineral Advisors
Independent
Ilse Rautenbach
Former President, International Division, Cordero Building Products
Independent
Yusuf Demirci
Former Chief Financial Officer, Caldwell Infrastructure Partners
Independent
Each of the Audit, Compensation and Human Capital, and Nominating and Corporate Governance committees is composed entirely of directors the Board has determined to be independent under the NYSE listing standards and, where applicable, Rule 10A-3 and Rule 10C-1 under the Securities Exchange Act of 1934.