Operation method
Generally, overseas mail is not included, because the postage is relatively expensive, so some businesses do not include mail.
Xinjiang and Tibet also do not include postal services. Xinjiang and Tibet are geographically remote, sparsely populated and have high freight costs.
In Qinghai, Gansu, Ningxia and other regions, ordinary businesses will not package mail. These regions are not very developed, transportation is not very convenient, and freight costs are high.
Hong Kong, Macao and Taiwan generally do not send by parcel. In these regions, express companies usually choose air freight, which is too expensive.