Base
HTS 9902.01.26Chapter 99

HTS 9902.01.26Dioxosilane (Silicon dioxide amorphous) (CAS No. 7631-86-9) entirely spherical micro-spheres of mean particle size of 0.005 mm or smaller, uniform particle size with a uniformity coefficient of 1.65 or less, trace metal impurities less than 70 ppm, specific electrical resistance of 50,000 Ohm cm (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 2026-04-29 · Updates daily

AD/CVD

Possible AD/CVD orders covering this code

Verify scope before relying on a deposit rate

Scope-to-HTS matching is keyword-based and may include orders whose actual scope excludes this code. Verify scope on the linked Federal Register notice before relying on a deposit rate. Per-respondent cash deposit rates are not yet indexed; click through for the rate table.

ADA-400-001ICELAND
POR 4/1/25-3/31/26

Silicon Metal

ADA-557-820MALAYSIA
POR 8/1/24-7/31/25

Silicon Metal

ADA-570-806THE PEOPLE'S REPUBLIC OF CHINA
POR 6/1/24-5/31/25

Silicon Metal

ADA-821-817RUSSIA
POR 3/1/25-2/28/26

Silicon Metal

ADA-893-001BOSNIA AND HERZEGOVINA
POR 4/1/25-3/31/26

Silicon Metal

CVDC-834-811THE REPUBLIC OF KAZAKHSTAN
POR 1/1/25-12/31/25

Silicon Metal

Source: ITA Opportunity to Request Administrative Review notices (Federal Register). Ground truth: access.trade.gov.

Subheadings (1)

CodeDescriptionRate
9902.01.26Dioxosilane (Silicon dioxide amorphous) (CAS No. 7631-86-9) entirely spherical micro-spheres of mean particle size of 0.005 mm or smaller, uniform particle size with a uniformity coefficient of 1.65 or less, trace metal impurities less than 70 ppm, specific electrical resistance of 50,000 Ohm cm (provided for in subheading 2811.22.10)Free
9902.01.259902.01.27