4PX is recognized as a preferred partner by e-commerce enterprises such as Aliexpress. 4PX mainly offers global postal and express courier services based in China.
The registered, ordinary mail and EMS with low-rates are available in cooperation with SG Post (S’pore), HK Post and China Post.
The tracking barcode no. as an example: MS12345678XSG (SG for SG Post) As seen, the standard 9-digit number is replaced by 8-digit number plus X letter.
The delivery speed of the postal services, except EMS, may be relatively longer than expected.