Can you cut import duty when shipping equipment from China to Thailand?

01One shipment, one route

Equipment and materials are the bulk of what goes into building a plant, so how the import leg is handled feeds straight through to total project cost. Here are the routes, the foundation underneath them, and the miscalculation we see most often.

• Exemption under promoted status. A project that holds promotion can import machinery and equipment free of duty on the strength of that status. The condition is that the equipment is already on the submitted list and already approved — ship before approval and the goods will not be released on arrival.
• Preferential rates under a free trade agreement. Goods that satisfy the rules of origin take the agreement rate on a certificate of origin. Goods originating in China go under the ASEAN–China agreement, goods originating inside ASEAN under the ASEAN free trade agreement. The two are not interchangeable; the certificate follows where the goods were actually made.
• The ordinary rate. Where none of the above applies, duty is paid the usual way.

The three are mutually exclusive: one shipment takes one route. Decide it shipment by shipment and leave a record — why this shipment went this way, who decided, and when. If you are asked about it later, having that record and not having it are two very different positions.

02The line that pushes the estimate up: not every tax is exempt

This is the part worth remembering: the exemption under promoted status covers import duty and import VAT, and excise tax sits outside it. The agreement route is narrower still — it only brings the duty rate down, while VAT and excise are paid in full.

We checked one of these on a live project. On a data centre project, a batch of equipment came in with duty and VAT exempt under the promotion, but the battery portion still paid excise tax running to seven figures. If that is not in the budget, the cash position on delivery day looks bad.

When you build the landed-cost estimate, cost it out item by item. "We have the certificate, so there is nothing to pay" is the most expensive sentence on this subject. If the equipment list contains anything excisable — batteries and energy storage, for instance — that part goes into the budget as its own line. See also which taxes are still payable once you hold BOI promotion.

03Classification is the foundation, not a guess

The tariff code decides which set of rules of origin applies, decides the gap between the ordinary rate and the preferential rate, and decides whether a certificate is worth the trouble on this shipment at all. Classification should be settled before the order is placed, not at the point of declaration.

Getting it wrong costs tax at best. At worst it can be treated as an incorrect declaration, and the consequences reach past the single shipment. Classification needs a technical basis and a file behind it; settle contested items in advance rather than leaving the broker to fill in a code from experience.

04Three things that decide execution

Once the route and the code are fixed, three things decide whether the shipment goes through cleanly.

• Documents that agree with each other. Description, specification, quantity, value and consignee have to match across the invoice, packing list, bill of lading, certificate of origin and draft declaration. Caught before shipping, it is an amendment; caught after arrival, it is demurrage and back tax.
• Timing. The exemption entitlement, the approval of the list and the certificate all have to be in place before the goods arrive. Goods waiting on paperwork is the most common source of loss here.
• Keep the file. Retain the import paperwork in full — later checks, refund claims and the disposal formalities for duty-exempt equipment during the period it has to stay in use all draw on it.

05Do this before the purchase contract is signed

Which code your goods actually fall under, whether they can meet the origin criteria, and which route is the better deal all have to be worked out shipment by shipment, against what the goods are made of, how they are produced and when they actually sail.

Run that round before the purchase contract is signed rather than when the container is already at the port. And if the exemption route is what your budget assumes, the promotion has to be in hand first — what the BOI application engagement covers.