The complete authorization in the second level with the trademark holder as the source means that the trademark holder authorizes a company to sell its branded goods, and the company authorizes the merchants to sell the branded goods. Merchants need to provide a trademark owner's authorization to a company and a company's authorization to merchants.
Whether it is the head office or a subsidiary, if the subsidiary wants to use the patent of the head office, it needs to be approved by the head office and the two sides sign a license agreement.