A compliant shipment from China includes a standard document set. Verify you receive all of them before the ship departs, because correcting documents mid-transit is slow and expensive. The core set: commercial invoice, bill of lading (original, if your country requires presentation for customs), packing list, certificate of origin, and the export customs declaration. For used cars, also expect the Chinese registration certificate copy, deregistration proof, and a condition/inspection report. Some destinations require additional certificates — GCC states need GSO conformity, EU countries need COC or individual approval, several African nations require BESC/ECTN tracking numbers issued before loading. Your customs broker will typically need the invoice and bill of lading at minimum, plus proof of vehicle age and emissions where age limits apply. Ask your exporter for scanned copies the day the vessel sails, not when it arrives: pre-clearance can cut port storage fees significantly. One caution: the invoice value must match your payment records. Under-declaring to save duties is customs fraud in most countries and risks seizure.

Used cars are classified under HS heading 8703 (motor vehicles for transport of persons), with the last four digits determined by engine type and size. Gasoline cars usually fall in 8703.21–8703.80 depending on displacement; pure EVs fall under 8703.80; hybrids have their own subheadings. The duty amount depends on your country's tariff schedule: 1. Most countries charge duty on the CIF value (car price + freight + insurance), not the FOB price. 2. Many developing markets levy higher duties on used vehicles than new ones, and some add a surcharge based on age — older cars can cost significantly more to clear. 3. After duty, you typically pay VAT/GST on the CIF + duty total, plus port and customs fees. Practical tips: ask your exporter to state the exact HS code on the commercial invoice and confirm it with a local customs broker before shipping. A wrong code can trigger reclassification, penalties, or delays. Also budget for any excise tax tied to engine capacity — in several markets a 2.5L car clears far cheaper than a 3.5L one.

Obtaining precise internal resistance at different SOC levels requires disassembling the battery pack and connecting it to a professional charge-discharge cabinet for several days of cycling tests. This is beyond the scope of non-destructive used car inspections; we only provide real-time estimated internal resistance data based on OBD port readings.