HS code for modeling clay
The U.S. HS code for modeling clay is usually 3407.00.20.00 (polymer or air dry), with no general duty and an estimated total of 12.5% from China and 12.5% from Vietnam once additional duties are added.
Estimates use tariff data as of October 22, 2026. The China and Vietnam estimates include Section 301: Forced labor action (12.5%). From China, Section 301: China list duty (7.5% or 25%) may also apply, up to 37.5% in total. Classifications and duty estimates are guidance based on the published HTSUS. The importer of record is responsible for the final classification.
Codes by variant
| Variant | HTS code | General duty | Est. from China |
|---|---|---|---|
| Polymer or air dry | 3407.00.20.00 | Free | 12.5% |
- 3407.00.20.00: Modeling pastes, including those put up for children's amusement
What decides the code
Modeling clay and similar modeling pastes are classified under heading 3407, specifically 3407.00.20.00 for modeling pastes, including those put up for children's amusement.
- The product is a modeling paste, so heading 3407 covers it. Polymer and air dry clays both fall in 3407.00.20.00.
- Put up for children's amusement or in retail packings keeps the paste in 3407.00.20.00 rather than a bulk industrial heading.
- A paste that is not a modeling paste and not a dental preparation moves out of heading 3407 to the heading for its actual material or use.
Common mistakes
- Classifying polymer clay under 3407.00.40.00 as dental wax or dental impression compound is wrong because the product is a modeling paste, not a dental preparation.
- Putting modeling clay in a plastics heading is wrong because heading 3407 specifically covers modeling pastes.
- Treating children's modeling clay as a toy under Chapter 95 is wrong because the paste itself is classified in heading 3407.
Estimated U.S. duty by origin
- China
- 12.5% = Free general + 12.5% Section 301: Forced labor actionMay also apply: Section 301: China list duty (7.5% or 25%). Up to 37.5%.
- Vietnam
- 12.5% = Free general + 12.5% Section 301: Forced labor action
For HTS 3407.00.20.00, as a share of customs value, before fees. Check every measure for your entry with the tariff checker.
EU code and duty
- Polymer or air dry
- CN 3407 00 00, Free
EU Combined Nomenclature 2026, third-country (erga omnes) duty. Preferential rates and EU trade remedy duties are not included.
CPSC eFiling
3407.00.20.00 (CP1) is on CPSC's eFiling HTS list. CPSC certificate related data may be needed. If modeling clay is subject to a CPSC rule, file the certificate data at entry through your broker or the CPSC Product Registry.
Check what to file for 3407.00.20.00
CPSC HTS list for eFiling, October 1, 2026. The list is guidance and not exhaustive.
Frequently asked questions
What is the HS code for modeling clay?
The U.S. HTS code for modeling clay is usually 3407.00.20.00 (polymer or air dry). The first six digits, 3407.00, are the international HS code.
What is the U.S. import duty on modeling clay from China?
The U.S. general duty on HTS 3407.00.20.00 is Free. With the additional duties that apply to goods of China (Section 301: Forced labor action (12.5%)), the estimated total is 12.5% of customs value. Section 301: China list duty (7.5% or 25%) may also apply depending on the exact product. From Vietnam the estimate is 12.5%. Tariff data as of October 22, 2026.
Does modeling clay need CPSC eFiling?
HTS 3407.00.20.00 or another code on this page is on CPSC's eFiling HTS list. If the product is subject to a CPSC rule, such as a children's product, the certificate data must be filed at entry. A product that needs no certificate can use a disclaim message.
Tariff schedule pages
- 3407.00.20.00Modeling pastes, including those put up for children's amusement
- Heading 3407Modeling pastes, including those put up for children's amusement; preparations known as "dental wax" or as "dental impression compounds", put up in sets, in packings for retail sale or in plates, horseshoe shapes, sticks or similar forms; other preparations for use in dentistry, with a basis of plaster (of calcined gypsum or calcium sulfate)
Codes checked against the USITC Harmonized Tariff Schedule retrieved October 22, 2026. Additional duties reviewed October 22, 2026. This is an estimate: the importer of record is responsible for classification.