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HTS 9902.01.31Chapter 99

HTS 9902.01.31Amorphous silicon dioxide micro-spheres of mean particle size 0.003-0.018 mm, linseed oil absorption 30-40 ml/g, surface area less than 80 m²/g, and pore volume less than 0.1 ml/g (CAS No. 7631-86-9) (provided for in subheading 2811.22.10) Duty Rate & Import Guide

Special Import Provisions · Updated daily from USITC

Duty Rates

General

Free

Special

No change

Column 2

No change

Preferential Rates Available

Trade Agreement Eligibility

CUSMAKORUS

Notes

[object Object]

Trade Intelligence

Data compiled from USITC HTS · As of 2026-04-30 · Updates daily

Subheadings (1)

CodeDescriptionRate
9902.01.31Amorphous silicon dioxide micro-spheres of mean particle size 0.003-0.018 mm, linseed oil absorption 30-40 ml/g, surface area less than 80 m²/g, and pore volume less than 0.1 ml/g (CAS No. 7631-86-9) (provided for in subheading 2811.22.10) Free
9902.01.309902.01.32