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United States of America flag United States of America HS Code

HS Code 391000: Silicones in primary forms in United States of America

What is HS Code 391000 in United States of America

Under United States of America's Harmonized Tariff Schedule of the United States (Harmonized Tariff Schedule), HS Code 391000 is the WCO Harmonized System subheading for Silicones in primary forms. This is the most detailed internationally standardized level; United States of America extends classifications to 10 digits under its national tariff system. 391000 belongs to Section VII: Plastics and articles thereof; rubber and articles thereof, Chapter 39: Plastics and articles thereof, Heading 3910: Silicones in primary forms.

Explore more 2026 Latest United States of America import export trade data and shipment records for HS Code Silicone Polymers on TradeInt global trade data platform

Classification Path of HS Code 391000 in United States of America

Section VII
Chapters (39-40) Plastics and articles thereof; rubber and articles thereof
Chapter 39
Plastics and articles thereof
HS Code 3910
Silicones in primary forms
HS Code 391000
Silicones in primary forms
HS Code 3910000000
Silicones in primary forms

United States of America Tariff Classification: Harmonized Tariff Schedule of the United States (HTS / HTSUS)

In United States of America, HS 391000 is classified under the Harmonized Tariff Schedule of the United States (Harmonized Tariff Schedule) — a 10-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Harmonized Tariff Schedule of the United States (HTS / HTSUS)
Local name Harmonized Tariff Schedule
Digits 10
Official source https://www.cbp.gov/
You know what 391000 means. Now see 2026 latest real trade activity for Silicone Polymers in United States of America.
Buyers, suppliers, origin and destination countries, shipment dates, and quantities direct from customs records.
Search 2026 Latest United States of America Import DataSearch 2026 Latest United States of America Export Data

Top Trading Product of HS Code 3910

Top United States of America import Product Under HS Code 3910

1 391000: Silicones in primary forms $672.5M
Figures shown for 2025.
For more 2026 recent data, search for United States of America import trade records

Top United States of America export Product Under HS Code 3910

1 391000: Silicones in primary forms $1.4B
Figures shown for 2025.
For more 2026 recent data, search for United States of America export trade records

Related HS Code to United States of America Silicone Polymers (391000)

HS Code 3910000000
Silicones in primary forms
HS Code 390110
Polyethylene having a specific gravity of less than 0,94
HS Code 390120
Polyethylene having a specific gravity of 0,94 or more
HS Code 390130
Ethylenevinyl acetate copolymers
HS Code 390140
Ethylenealphaolefins copolymers, having a specific gravity of less than 0,94
HS Code 390190
Other
HS Code 390210
Polypropylene
HS Code 390220
Polyisobutylene
HS Code 390230
Propylene copolymers
HS Code 390290
Other

Frequently Asked Questions

What is HS code 391000 in United States of America?
HS code 391000 covers Silicones in primary forms in United States of America. It sits in Chapter 39 (Plastics and articles thereof), Heading 3910 of the Harmonized System, and is classified under HTS / HTSUS.
Is HS code 391000 the same across all countries?
What system does United States of America use to classify HS code 391000?
Where can I officially look up HS code 391000 in United States of America?