It depends on what you want to do in Chengdu. If you are just going to Taobao, you just need to ensure that your agricultural products are safe. It is best to have QS certification, organic food certification, and green food certification.
If you want to build a shopping mall like Wujiaxian, it will be a little more complicated. However, the three-meal food business management system they use will solve the website problems, so there is no need to go too far. Worry.