💾 Data Updated: Latest version • Last updated: December 09, 2025

9902.10.97 - 1-Propamine, 3-(triethoxysilyl)-, reaction products with Etesters of reduced polymd. oxidized poly(tetrafluoroethylene) (CAS No. 223557-70-8) (provided for in subheading 3904.69.50)

Details

FieldValue
Unit of QuantityN/A
General Rate of Duty (Column 1 - General)Free
Special Rate of Duty (Column 1 - Special)No change
Column 2 Rate of DutyNo change
Quota QuantityN/A
Additional DutiesN/A
About Duty Rates: Rates are divided into Column 1 and Column 2. Column 1 is subdivided into General (normal trade relations rates for all countries not eligible for special programs) and Special (preferential rates for countries with free trade agreements or preference programs). Column 2 rates apply to products from Cuba, North Korea, Belarus, and Russia. When no special rate exists for a classification, General rates apply.

Overview

This HTS classification, 9902.10.97, pertains to specific chemical reaction products. It covers "1-Propamine, 3-(triethoxysilyl)-, reaction products with E-esters of reduced polymd. oxidized poly(tetrafluoroethylene) (CAS No. 223557-70-8)". These are specialized chemical compounds derived from the interaction of silane-functionalized propylamine with modified polytetrafluoroethylene (PTFE) esters. The CAS number provides a unique identifier for this precise chemical entity.

The primary distinction for this category lies in its precise chemical composition and its placement within Chapter 99, which is reserved for temporary legislation and special provisions. Unlike the vast array of sibling categories starting with Chapters 01 and higher, which classify goods by their primary physical form and material (e.g., live animals, plants, mineral products, or manufactured goods), this entry is designated for specific, potentially tariff-modified or restricted, chemical substances subject to temporary trade measures.

As this is a leaf node, there are no subcategories to introduce. The classification is final at this level, indicating that further subdivision is not applicable under the current HTS structure. Classification under this specific code is contingent on the chemical identity precisely matching the description and its inclusion under the prevailing temporary legislation or special provisions associated with Chapter 99. Importers must verify that the goods meet all criteria for entry under this temporary classification.

Frequently Asked Questions

›What is HTS code 9902.10.97?
HTS code 9902.10.97 covers 1-Propamine, 3-(triethoxysilyl)-, reaction products with Etesters of reduced polymd. oxidized poly(tetrafluoroethylene) (CAS No. 223557-70-8) (provided for in subheading 3904.69.50) under the US Harmonized Tariff Schedule. It falls under Chapter 99: Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions proclaimed pursuant to section 22 of the Agricultural Adjustment Act, as amended.
›What products are classified under 9902.10.97?
This classification covers 1-Propamine, 3-(triethoxysilyl)-, reaction products with Etesters of reduced polymd. oxidized poly(tetrafluoroethylene) (CAS No. 223557-70-8) (provided for in subheading 3904.69.50). It falls under Chapter 99: Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions proclaimed pursuant to section 22 of the Agricultural Adjustment Act, as amended.
›What is the import duty rate for 9902.10.97?
The general rate of duty for HTS 9902.10.97 is Free. Special preferential rates may apply: No change. The Column 2 rate is No change.

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