The Certificate of Origin (CO) is an international trade document that certifies the origin of goods. It is an important certification document in the processes of transfer of goods title, tax management, and goods identification in international trade. The Certificate of Origin is issued by the economic department or chamber of commerce of the country of production or export of the goods after strict review. The application and issuance of the Certificate of Origin need to comply with relevant laws, regulations, and international rules to ensure its authenticity and reliability.