A trademark is a trademark, such as Li Ning. This company has applied for a trademark, and the brand name is Li Ning.

If you enter Tmall and want to operate a well-known brand, it will prove that the product is not yours. For self-developed products, you can at most be an agent or distributor, so you need to obtain a trademark authorization letter from the company of this brand before you can enter it on Tmall. The format is available on the Tmall page.