EMS is a postal courier company, and Customs is a national unit, not an institution. Sending it to the customs does not mean collecting customs duties. When the recipient receives the mail, if it is tax mail, EMS will charge customs duties.

EMS is an express mail service. It is an international mail express service managed by Universal Postal Union, and it is a kind of express service provided by China Post. This business enjoys priority in customs, aviation and other departments. It delivers international and domestic urgent letters, documents, financial bills, commodity samples and other documents and articles to users with high quality.