The largest drivers are asphalt binder cost and availability, polymer modifier cost for PM emulsions, and the emulsifier and stabilizer package. Water quality and required treatment chemicals can add cost where hardness or salinity is high. Logistics is big because emulsions are mostly water: hauling distance, backhaul availability, tanker utilization, and regional terminal network efficiency strongly affect delivered price. Seasonality, storage constraints, and minimum batch sizes also matter. Quality requirements such as tighter particle size control, certification testing, and documentation increase cost but reduce field risk.