There is no time limit for the operation, but your foreign exchange settlement quota can only be approved after registration. If it is not urgent, the goods may not be registered for foreign exchange settlement together after export.
When going to the bank to settle foreign exchange, you need to bring the electronic port operator card, official seal and receipt memo to the bank for handling. Generally, you need to fill out a form and a special transfer form, and other banks will handle it.
To write off in SAFE, you need to declare in the online write-off system first, print the write-off form and then go to SAFE for write-off.
Many things seem difficult, but if you really do it, you will find it is actually very simple.