There are two kinds of promotion. One is the official Amazon promotion, and the other is the system-automatic promotion. Let's talk about the official Amazon promotion first. There are two main types:

1. Amazon's marketing department will decide the promotion category based on the season and the changes in the search volume on the website. For example, we found that the search volume for mops on the website has been very high recently. We will put a promotional advertisement for mops on the homepage or channel page. After consumers click in, they can see all the mops on the website. Such activities do not require sellers to sign up, and the system will automatically grab qualified products and present them.

2. Activities organized by Amazon's marketing department itself. These activities will have clear themes and requirements. Amazon staff will search the database for qualified merchants and send invitations one by one. Only sellers who receive invitations can participate in the activities. Secondly, let's talk about the promotion done automatically by the system. Our system will automatically promote to consumers. This promotion is based on relevance. If a consumer has seen or purchased a certain product, we will recommend related products to him on the product details page or through email ads.