In summary, the following conditions need to be met: 1. There must be a limited company or a self-employed person. 2. A Category 3 medical device business license is required. Because the testing reagents belong to Class 3 medical devices. 3. Have a trademark. For online sales, you need to register on the platform. Now Douyin, Taobao, video accounts, etc. all have a trademark or authorization from the manufacturer. 4. The person in charge of quality must be majoring in medical device related fields! 5. There must be an actual business site.