
Key Takeaways
- The shipping origin country is not always the legal country of origin.
- Always verify Product Specific Rules (PSR) before shipping.
- All shipping and customs documents must present an identical, consistent record.
Country of Origin Relates to the Production Process
A cargo might be shipped from one nation, but its legal origin under an FTA depends on raw material sources, processing stages, and code classifications. Claiming FTA concessions without verifying manufacturing details exposes importers to retrospective duty assessments and fines.
- Wholly Obtained
- Change in Tariff Classification (CTC)
- Regional Value Content (RVC)
- Product Specific Rules (PSR)
Benefits of Maintaining an Origin File
An origin file compiles bills of materials (BOM), manufacturing flowcharts, supplier declarations, and CO copies to make future customs compliance reviews seamless. Although collecting this from overseas suppliers is administratively heavy, it is a critical safeguard for businesses with high-frequency repeat shipments.
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Contact Our Experts NowOfficial Reference Agencies and Regulations
- Thai Customs Department: Electronic paperless declaration entry guidelines and customs clearance procedures.
- Ministry of Commerce & DFT: Regulations on preferential Certificates of Origin (Form CO) and targeted import-export control lists.
Rules of Origin are the criteria used to determine the source country of a product to apply trade policies and FTA benefits. Common mistakes include assuming the exporting country is automatically the country of origin, failing to verify product-specific rules, and having details on the CO that contradict the commercial invoice or HS Code.
Frequently Asked Questions
Q: If our supplier says the goods qualify for the FTA, can we trust them?
A: No, you should not take their word without checking. Importers should request supporting manufacturing cost and process documents to crosscheck against the destination country's FTA rules. Suppliers overseas often misunderstand the importing country's legal requirements.
Q: Are Rules of Origin related to HS Codes?
A: Yes, they are directly related. Almost all Product Specific Rules (PSR) under FTAs rely on changes in tariff headings or sub-headings (HS Code level) to determine if a product has undergone substantial transformation.


