HTS heading 3907 · Chapter 39

HTS 3907: Polyacetals, other polyethers and epoxide resins, in…

HTS heading 3907 covers polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms. It has 14 tariff lines with a duty rate; the general (MFN) rates are 6.5% (9 lines), 5.8% (2 lines), Free (2 lines) and others.

Imports may also owe Chapter 99 tariffs (Section 232, 301 or 201) depending on origin and date, plus the Merchandise Processing Fee and, by sea, the Harbor Maintenance Fee.

Rates from the 2026 HTS Revision 22, effective October 30, 2026. Source: U.S. International Trade Commission.

HTS code

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Country of origin

Customs value (USD)

Mode of transport

Entry date

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Tariff lines and duty rates

HTS code	Description	General	Special	Column 2	Estimate
3907.10.00.00	Polyacetals[kg]	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	2.2¢/kg + 33.5%	Estimate →
	Other polyethers:
3907.21.00.00	Bis(polyoxyethylene) methylphosphonate[kg]	6.5%	Free (A, AU, BH, CL, CO, D, E, IL, JO, K, KR, MA, OM, P,PA, PE, S, SG)	2.2¢/kg + 33.5%	Estimate →
3907.29.00.00	Other[kg]	6.5%	Free(A, AU, BH, CL, CO, D, E, IL, JO, K, KR, MA, OM, P,PA, PE, S, SG)	2.2¢/kg + 33.5%	Estimate →
3907.30.00.00	Epoxide resins[kg]	6.1%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 47%	Estimate →
3907.40.00.00	Polycarbonates[kg]	5.8%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 45%	Estimate →
3907.50.00.00	Alkyd resins[kg]	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 45%	Estimate →
	Poly(ethylene terephthalate):
3907.61.00	Having a viscosity number of 78 ml/g or higher	6.5%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 45%
3907.61.00.10	Having a viscosity number of 78 ml/g or more but not more than 88 ml/g[kg]				Estimate →
3907.61.00.50	Other[kg]				Estimate →
3907.69.00	Other	6.5%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 45%
3907.69.00.10	Having a viscosity number of 70 ml/g or more but less than 78 ml/g[kg]				Estimate →
3907.69.00.50	Other[kg]				Estimate →
3907.70.00.00	Poly(lactic acid)[kg]	6.5%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 45%	Estimate →
	Other polyesters:
3907.91	Unsaturated:
	Allyl resins:
3907.91.20.00	Allyl resins, uncompounded[kg]	Free		15.4¢/kg + 45%	Estimate →
3907.91.40.00	Other[kg]	5.8%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 45%	Estimate →
3907.91.50.00	Other[kg]	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 45%	Estimate →
3907.99	Other:
3907.99.20.00	Thermoplastic liquid crystal aromatic polyester copolymers[kg]	Free		15.4¢/kg + 45%	Estimate →
3907.99.50	Other	6.5%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 45%
3907.99.50.10	Polybutylene terephthalate[kg]				Estimate →
3907.99.50.50	Other[kg]				Estimate →

20 lines shown. Statistical suffixes (the last two digits) inherit the rate of the 8-digit subheading above them.

Example: base duty and fees on $10000

For HTS 3907.10.00.00 at the general rate of 6.5%, shipped by ocean, before any Chapter 99 tariffs:

Base duty (6.5%)	$650.00
Merchandise Processing Fee (0.3464%, min $34.58)	$34.64
Harbor Maintenance Fee (0.125%)	$12.50
Duty and fees	$697.14

Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.

Special program codes in this heading

A, A*, A+: Generalized System of Preferences (GSP)
AU: U.S.–Australia FTA
BH: U.S.–Bahrain FTA
CL: U.S.–Chile FTA
CO: U.S.–Colombia Trade Promotion Agreement
D: African Growth and Opportunity Act (AGOA)
E, E*: Caribbean Basin Economic Recovery Act
IL: U.S.–Israel FTA
JO: U.S.–Jordan FTA
K: Agreement on Trade in Pharmaceutical Products
KR: U.S.–Korea FTA (KORUS)
MA: U.S.–Morocco FTA
OM: U.S.–Oman FTA
P, P+: CAFTA-DR
PA: U.S.–Panama Trade Promotion Agreement
PE: U.S.–Peru Trade Promotion Agreement
S, S+: USMCA (United States–Mexico–Canada Agreement)
SG: U.S.–Singapore FTA

A special rate applies only when the goods qualify under that program's rules of origin and the claim is made at entry.

Duty by country of origin

PET resin (3907.61.00) · China · Mexico · Vietnam · Canada · Germany · Japan · South Korea · Taiwan · India · Italy

Frequently asked questions

What is the duty rate for HTS 3907?

Heading 3907 has 14 rate lines. The general (MFN) duty rates are 6.5% (9 lines), 5.8% (2 lines), Free (2 lines), 6.1% (1 line). Products of free trade agreement partners may enter at the special rate, and Column 2 rates apply to countries without normal trade relations. Chapter 99 tariffs can be added on top: calculate the full amount.

Do Section 301, 232 or 201 tariffs apply to HTS 3907?

It depends on the 8- or 10-digit subheading, the country of origin, the entry date and, for Section 232, the metal content. These additional duties are listed in Chapter 99 of the HTS. The free duty calculator checks each program for a given code, origin and date and shows which apply and why.

What fees are added to an import under HTS 3907?

Formal entries pay the Merchandise Processing Fee of 0.3464% of value (minimum $34.58, maximum $670.86 in FY2027). Ocean shipments also pay the Harbor Maintenance Fee of 0.125% of value. See the import duty calculator for how they combine.