2. Taxpayer identification number: enterprises need to provide a unified social credit code or taxpayer identification number, and individuals need to provide ID numbers.
3. Project name: the specific name of tea ceremony activities, such as "tea ceremony performance" and "tea ceremony experience".
4. Project amount: the cost amount of tea art activities, including service fees and taxes.
5. Service time: the specific time and date of the tea ceremony.
6. Contact information: contact information of the billing personnel, including address, telephone number and email.