Domestic EMS Express can be found on the homepage of official website: Web page link.
Attached:
International and Taiwan, Hong Kong and Macao Speedpost Commitment Service
International, Taiwan, Hong Kong and Macao express delivery commitment service refers to China Post Express Logistics Co., Ltd. (hereinafter referred to as Postal Express Logistics) exchanging EMS mail with designated countries and regions, and promising customers the whole time limit for mail delivery. For the mail whose actual delivery time exceeds the promised time limit due to our company's reasons, users can ask for a refund of the delivered mail fee.
International express service scope: Australia, Hong Kong, Japan, South Korea, the United States, Britain, Spain and France. The scope of commitment covers the whole country and regions.