About HS Code 391000
This HS code encompasses silicones in primary forms, which are synthetic polymers characterized by their silicon-oxygen backbone. Traded as liquids, pastes, powders, or granules, silicones are highly valued in international commerce for their unique properties: excellent thermal stability, water repellency, electrical insulation, and flexibility across a wide temperature range. They are critical in diverse industries, including electronics, construction, automotive, healthcare, and personal care. Major importers are manufacturers producing sealants, adhesives, lubricants, coatings, medical devices, and cosmetic ingredients. Exporters are typically specialized chemical companies. The global trade in silicones is substantial, driven by their indispensable role in high-performance applications and their ability to enhance product durability, safety, and functionality across numerous sectors.
Products Under This Code
Silicone oils, Silicone elastomers (HTV, RTV), Silicone resins, Silicone emulsions, Silicone greases, Silicone powders, Silicone gels, Silicone sealants (bulk)
Real World Examples
Dow Corning Silicones, Wacker Silicones, Shin-Etsu Silicones, Momentive Silicones
Common Misclassification
Can be confused with other synthetic polymers if not clearly identified by their silicon-oxygen backbone, or with finished silicone articles like gaskets (Chapter 40) or medical tubing (Chapter 90) if not in primary forms.
Products Classified Under 3910.00
Industry
This code belongs to the Plastics & Rubber industry.
Trade Overview
Germany, the USA, and China are leading exporters, with significant imports by advanced manufacturing economies globally.
Frequently Asked Questions
What is HS code 391000?
HS code 391000 covers: Silicones; in primary forms. This HS code encompasses silicones in primary forms, which are synthetic polymers characterized by their silicon-oxygen backbone. Traded as liquids, pastes, powders, or granules, silicones are highly valued in international commerce for their unique properties: excellent thermal stability, water repellency, electrical insulation, and flexibility across a wide temperature range. They are critical in diverse industries, including electronics, construction, automotive, healthcare, and personal care. Major importers are manufacturers producing sealants, adhesives, lubricants, coatings, medical devices, and cosmetic ingredients. Exporters are typically specialized chemical companies. The global trade in silicones is substantial, driven by their indispensable role in high-performance applications and their ability to enhance product durability, safety, and functionality across numerous sectors.
What products fall under HS code 391000?
Silicone oils, Silicone elastomers (HTV, RTV), Silicone resins, Silicone emulsions, Silicone greases, Silicone powders, Silicone gels, Silicone sealants (bulk)
What are common misclassifications for HS code 391000?
Can be confused with other synthetic polymers if not clearly identified by their silicon-oxygen backbone, or with finished silicone articles like gaskets (Chapter 40) or medical tubing (Chapter 90) if not in primary forms.
How is HS code 391000 structured?
HS code 391000 is a 6-digit subheading under the Harmonized System. The first 2 digits (39) identify the chapter, digits 3-4 (10) identify the heading, and digits 5-6 (00) specify the subheading. This code is standardized globally by the World Customs Organization.