9902.10.61

8-digit subheading

Siloxanes and silicones, di-Me, polymers with Me silsesquioxanes and polypropylene glycol mono-Bu ether (CAS No. 68554-65-4), greater than 70 percent by weight, with less than 8 percent percent by weight siloxanes and silicones, di-Me, polymers with Me silsesquioxanes and polyethylene-polypropylene glycol mono-Bu ether, less than 8 percent by weight poly(oxy(methyl-1,2-ethanediyl)), α-butyl-ω hydroxyl (CAS No. 9003-13-8), less than 2 percent by weight oxirane, methyl-, polymer with oxirane, monobutylether (CAS No. 9038-95-3), less than 8 percent by weight silanamine, 1,1,1, trimethyl (CAS No. 68909-20-6) and less than 1 percent by weight silicon dioxide (CAS No. 7631-86-9) (provided for in subheading 3824.99.92)

This is a 8-digit subheading — a category, not a filing code. Pick the more specific code beneath it that best matches your goods; only a 10-digit statistical code can be used on a customs entry.

Duty rates

Duty-free under this rate column.

Duty rates for HTS 9902.10.61
Rate	Value and what it means
General rate (Column 1)	FreeColumn 1 general Applies to most trading partners — the standard "normal trade relations" rate.
Special rate (Column 1)	No changeTrade programs The country letters in parentheses are free trade agreement and preference programs. If your goods qualify under one of them, that rate replaces the general rate.
Column 2 rate	No changeNon-NTR Reserved for the small group of countries that do not have normal trade relations with the US (currently Cuba, North Korea, Russia and Belarus). Almost no importer uses this column — if you are shipping from anywhere else, ignore it.
Unit of quantity	— How CBP expects the quantity to be reported on the entry summary.

Estimate duty for this code

Chapter 99: Temporary Legislation; Temporary Modifications; Additional Duties

Browse every code in this chapter to compare neighbouring classifications.

View Chapter 99

Source: USITC Harmonized Tariff Schedule, 2026 Basic Edition, Revision 16. Rate text is reproduced verbatim from the official export; category paths and duty estimates are derived.

Data loaded August 18, 2026.Check this chapter on hts.usitc.gov Report an error with this code How this data is built