The biggest drivers are base bitumen cost, emulsifier package cost, polymer or rubber additives, and energy for heating and pumping. Water quality treatment and specialty additives can matter for premium grades. Logistics includes distance from terminal to jobsite, tanker availability, minimum order quantities, and storage requirements at the buyer site. Seasonal demand spikes and monsoon periods affect dispatch and stock holding costs. Packaging also changes price dramatically, with drums and IBCs usually higher per ton than bulk tankers due to handling and packaging costs.