Aggregate Operations Department (Portable Plant, Finish Plant, and Waikapu Quarry): Supervises the daily operation of the Portable Plant, Finish Plant, and Waikapu Quarry, including quarry development, harvesting, blasting, crushing, screening, processing, inventory management, and aggregate production activities. Ready-Mix Concrete Department: Supervises ready-mix production, dispatch coordination, transportation operations, fleet utilization, delivery performance, and customer service activities to ensure customers receive quality products safely, efficiently, and on schedule.