Do I need to write the ID number on the copy of the health certificate business license?

Yes According to the inquiry of China Travel Service. Com, to apply for a health certificate business license, you need to provide a copy of the business license, a letter of introduction (both copies and letters of introduction must be stamped) and the original second-generation ID card of the employee. Health certificate refers to the proof of preventive health examination, which proves that the examinee has the health quality to engage in the prescribed business.