Wrong HS codes cost importers thousands in overpaid duty or customs seizures. This guide explains the 6+4 digit structure, common Thai export codes, and how to get a binding ruling.
Structure
HS codes are 6 digits globally. Countries add 2–4 more for tariff detail:
- USA: 10 digits (HTSUS)
- EU: 10 digits (TARIC)
- Mexico: 10 digits (TIGIE)
The first 6 digits are identical worldwide — start there.
Reading a Code
Example: 6109.10.0010 — Men's cotton T-shirts, knit
- 61 = Apparel, knit
- 6109 = T-shirts & singlets
- 6109.10 = Of cotton
- .0010 = US statistical suffix
Getting It Right
- Read WCO Explanatory Notes for the heading
- Check GRI 3(a) (most specific description) if two codes could fit
- Ask your customs broker — they see your product monthly
- Request a binding ruling — CBP (USA), HMRC (UK), or destination customs. Free and legally binding for 3–5 years.
Common Thai Export Codes
| Product | HS Code | Typical Duty (US) |
|---|---|---|
| Jasmine rice | 1006.30 | Free (subject to quota) |
| Canned tuna | 1604.14 | 12.5% or 35% (quota) |
| Rubber gloves | 4015.11 | 3% |
| Auto bearings | 8482.10 | 9% |
| Silicone kitchenware | 3924.10 | 3.4% |
| Pet chew toys | 4016.99 | 2.7% |
Related Reading
FAQ
Who is legally responsible for the HS code? The importer of record — even if the broker filed it. Wrong codes = penalties + back-duty.
Can I get a free binding ruling? Yes. In the US, CBP eRulings takes 30 days. UK BTI takes 60–120 days.
What if my product is new? Use GRI (General Rules of Interpretation) to classify by essential character or intended use.