Certificates of origin (CO) verify a product’s country of origin and state where the product was manufactured, produced or processed, though this can become more complicated when raw materials come from one country and a product is then manufactured in another.
The import and export of goods requires a written contract. The terms of this contract must be clearly understandable by both the exporter and the importer, even if they do not speak the same language, and even if their two countries have different business practices and legal systems.