Infill is a heavy, low-value-per-ton commodity, making logistics costs a significant portion of the TCO (Total Cost of Ownership). Negotiate based on FOB (Free On Board) terms if you have a reliable freight forwarder, but compare it with CIF (Cost, Insurance, and Freight) quotes from the supplier. For bulk orders exceeding 20 tons, aim for a 10-15% volume discount. Always clarify if the price includes UV-stabilized jumbo bags (1-1.5 tons) or smaller 25kg bags, as palletization affects unloading labor costs.