CKD Export Documentation: HS Codes and Certificate of Origin

The whole financial case for CKD rests on paperwork. If your export documentation is wrong, you lose the tariff advantage that made CKD attractive in the first place — or worse, your shipment is held at customs. Here is what every CKD importer must get right.

HS Codes: The Foundation of Tariff Savings

Fully assembled gas stoves and their component parts fall under different HS (Harmonized System) codes, and those codes carry different duty rates. The point of CKD is to import parts under their lower part-level codes rather than the complete-appliance code. Using the correct HS code for each component category — burner heads, valves, panels, ignition parts — is what unlocks the tariff savings.

Certificate of Origin

A certificate of origin proves where the goods were manufactured. Many countries grant preferential or reduced duty rates to goods from certain trading partners, so the certificate directly affects what you pay. It also supports your claim to be a local manufacturer building on imported components.

The Full Document Set

• Commercial invoice — itemized values matching the HS codes.
• Packing list — every component and quantity, aligned to the assembly BOM.
• Certificate of origin — proof of manufacturing origin.
• Bill of lading — transport and ownership documentation.
• Assembly guide and BOM — supports customs classification of the parts.

Align Documents with Your BOM

The key discipline is consistency: your invoice, packing list, and HS codes must all match the component list of your CKD kit. Mismatches trigger customs delays and reclassification. THREEMI supplies complete CKD kits with clear component documentation, and we advise partners on documentation and classification so your tariff savings actually materialize. Contact us to plan a CKD program with the paperwork done right.

About THREEMI

THREEMI is the export brand of Shenzhen Sanmi Manufacturing Co., Ltd., a professional gas stove and kitchen appliance factory in Guangdong, China. With 400+ employees, a 20,000㎡ production facility, and an annual output of 3 million units, we serve wholesalers, distributors, brand owners, and e-commerce sellers in over 30 countries. Our factory is certified ISO9001, CCC, CE, UL, GS, ETL, NF, and SASO.

Start Your Local Assembly Line with THREEMI

We supply complete gas stove CKD (Complete Knock Down) kits, plus assembly guidance, worker training support, and equipment purchasing advice — so you can build a reliable local manufacturing operation. Contact us to plan your CKD program.

WhatsApp: +86 186 7003 0673
Email: logan@threemi.com
Website: www.threemi.com