What does "bonded area" mean?

Bonded (bonded; Bonded system is an internationally accepted customs system.

It refers to a customs supervision business system in which goods imported by domestic enterprises approved by the customs are stored, processed and assembled at designated places in China under customs supervision, and various import taxes and fees are suspended. First, bonded warehouses, bonded areas, consignment and duty-free shops serving international commodity trade; Second, imported materials processing, bonded factories and bonded groups serving processing and manufacturing.

Where goods imported from abroad are re-processed and exported in order to avoid going through the formalities of export tax refund in the future, they will not be recorded at the time of import and will be exempted from customs duties first, which is called bonded.