How far ahead should I start clearance at Baiyun Airport?
For general cargo, get the documents to the broker three to five working days before departure, which leaves room for classification checks and advance filing. Battery, chemical, perishable and exhibition cargo needs five to seven working days, because test summaries, transport appraisals and licenses take longer than the flight does. If the flight is already tight, file in advance and let the cargo go through inspection and release on arrival.
How early can an export be filed in advance?
Up to seven days before the cargo reaches the supervised area, once the bill or manifest data is available and description, specification and quantity are settled. Without advance filing the legal deadline is after arrival at the supervised area and at least 24 hours before loading. If advance-filed cargo does not arrive in time, the entry is canceled and has to be filed again.
Does a customs release mean my freight makes the flight?
No. Release closes the customs step; acceptance, aviation screening, pallet build and carrier load planning come after it. In peak season the terminal queue can take longer than the declaration. Plan from the sum of release time and terminal time, not from the release message alone.
Can I clear in Shenzhen and still fly out of Baiyun?
Yes, through on-carriage transit. The export declaration and transit formalities are completed at the origin office, the goods move under customs seal, and the transit is written off at Baiyun before uplift. Filing at origin and releasing locally is the other option. Both overlap the declaration with the road leg, which is what makes a factory two hours away workable.
Do products with batteries always move as dangerous goods?
It depends on cell chemistry, capacity and transport form. Lithium-ion cells shipped alone are UN3480; packed with or contained in equipment they are UN3481; lithium metal is UN3090 or UN3091. Expect a UN38.3 test summary, MSDS, packing certificate and shipper's declaration. Some small cells installed in equipment qualify for relief, but that has to be supported in writing, and the carrying airline has the final word at acceptance.
Why does magnetic cargo need its own test?
Magnetic fields can disturb aircraft instruments, so carriers require a magnetic field test before acceptance. The measured field decides whether the freight moves as general cargo, as magnetic cargo under conditions, or as dangerous goods, and whether it can board a passenger aircraft at all. Speakers, motors, magnets and some sensors all fall into this group, and sampling usually takes two to three working days.
Why is Baiyun fast for imported seafood and fruit?
Because the inspection site and the laboratory are in the same place. Imported fruit, chilled fish, live aquatic animals, meat and nursery stock are inspected at the special commodity site in the north work area, with sampling, delivery to the lab and release handled in one location, which makes same-day inspection and same-day results normal. The condition is that the exporting country's official certificates were checked before the aircraft landed.
I have no import-export license. Can I still ship?
Through an agent with the right qualification. Be clear about the consequence: the entity on the declaration owns the refund and the foreign exchange path. If the goods are meant to generate a VAT refund, exporting under someone else's name puts that refund at risk, so settle the structure before the goods move rather than after.
What if the entry is already filed and the description is wrong?
Before release you can apply to amend or cancel, with reasons and supporting documents. After release, and especially after departure, the process is heavier and can affect the refund. That asymmetry is why we reconcile contract, invoice, packing list, manifest and entry before filing: an amendment always costs more than a review.
When do I get the VAT refund documents?
After the aircraft departs and the manifest closes, normally one to three working days. Amendments, inspections or a delayed manifest closure push that back, and we tell your finance team the revised date rather than letting the refund filing deadline arrive unnoticed.
