The Haitao shop on Taobao is the owner himself in China, but he has rich experience or time or a special team, and then he buys things online, sends them back to China through a transshipment company, and then forwards them to you, or directly.
In terms of the richness of things that can be bought, Haitao is poor. Due to the limited form, Haitao can't buy everything like purchasing. Some brands of goods may not be sold online, and some limited-edition counters are difficult to buy.