A China FCL sea-freight rate is not your cost. It is one line of it.
When you import a full container from China into Kuwait, the freight number an agent quotes decides almost nothing about your margin. What decides it is the landed cost at your Shuwaikh door — and more lines get added after the ocean rate.
Customs duty is assessed on CIF, so your freight and insurance sit inside the taxed base, not outside it. Then clearance and terminal handling. Then the last-mile move to your warehouse.
Compare two agent quotes on the freight line alone and you can easily book the one that lands ~10-15% higher at your door. Build the landed number first, and the actually cheaper quote becomes obvious. That is the whole reason we quote door-to-door, not port-to-port.
Importing a container from China? Build your real landed cost first with the CIF/FOB + landed-cost calculator, then get a written quote at qafxpress.com/rfq.html.