2. Required materials: The third-party platform provider of online catering service shall review the food business license of the online catering service provider and register the name, address, legal representative or person in charge and contact information of the online catering service provider. Ensure that the license information such as the business premises specified in the food business license of the catering service provider is true. The third-party platform provider of online catering service shall sign a food safety agreement with the online catering service provider to clarify the responsibility for food safety.