Most new car manufacturers' e-SIMs are directly soldered onto the T-Box motherboard (surface-mounted) and cannot be removed and replaced like a phone. Unauthorized desoldering of the motherboard may cause complete communication failure in the vehicle, and we strictly prohibit this operation.

A Certificate of Origin (C/O) is an official document stating where the vehicle was manufactured. Customs authorities use it to decide which tariff rates and trade agreements apply to your import. Why it matters: many countries offer preferential tariffs for certain origins. With a valid C/O, such as the ASEAN-China Form E or a GSP Form A, you may pay reduced or zero duty. Without it, you typically pay the standard, higher rate. The certificate must match the vehicle exactly: VIN, make, model and invoice details. It is usually issued by the China Council for the Promotion of International Trade (CCPIT) or customs authorities. Practical tips: request the C/O before shipment, because adding it later is slow; check that your country's customs accepts the specific C/O format; and confirm with your broker whether your vehicle category qualifies for preferential rates. This single document can save you thousands in duty.

The battery pack is 30–50% of an EV's value, so its inspection should be the most detailed part of the pre-shipment check. Require these items: 1. BMS data readout: state of health (SOH), full-charge voltage, cell voltage deviation, cycle count, and fast-charging percentage. SOH above 90% is good; below 80% means a costly pack replacement is approaching. 2. Physical inspection: check the underbody for pack dents, coolant leaks from the battery cooling circuit, and corrosion on high-voltage connectors. 3. Range test: a real drive of at least 30–50 km, comparing energy consumption against the rated figure. A pack with poor cells overheats and depletes fast. 4. Charging test: verify both AC and DC charging work, and record charging speed and any error messages. Get the raw diagnostic data, not just a summary. If the inspector won't share the BMS report, assume the battery is the reason why.