HS code for siloxane in China: 3910000000
Chinese Tariffs
| Real-time China Tariff Data 2026

HS code for siloxane in China

The HS code for siloxane in China is 3910000000 — Silicones in primary forms.

MFN duty 6.5% VAT 13% Temporary rate - Consumption tax 0% Chinese customs wording: 初级形状的聚硅氧烷

Official tariff line authoritative
Official Chinese customs nomenclature for the code above. Rates are the reference figures of the current schedule; always confirm against the full record.
HS code Description (official English) Chinese customs wording MFN VAT Detail
3910000000 Silicones in primary forms 初级形状的聚硅氧烷 6.5% 13% Open
Other tariff lines that may apply
Further lines of the official nomenclature whose wording also covers siloxane. Which one applies depends on the form, material and intended use of the goods.
HS code Description (official English) MFN VAT Detail
2931900001 Hexamethylcyclotrisiloxane(including octamethylcyotetrasiloxane, decamethylcyclotrisiloxane, decamethylcyclotrisiloxane) 6.5% 13% Open
Codes used in practice for products declared as “siloxane”
Grouped from real Chinese import declarations. This list includes parts and components codes — that is expected, because components are imported far more often than finished machines. Use it to see how the product is classified in practice, not as the final answer.
HS code Description (official English) Declarations MFN VAT Detail
3910000000 Silicones in primary forms 866 6.5% 13% Open
3824999910 Crude silicon carbide, containing more than 15% by weight of silicon carbide 112 6.5% 13% Open
3824999999 Other chemical products not listed include hydrolysate or hydrolysate, DMC (hexamethylcyclotrisiloxane, octamethyl 87 6.5% 13% Open
2931900090 Other organo-inorganic compound 62 6.5% 13% Open
2931900001 Hexamethylcyclotrisiloxane(including octamethylcyotetrasiloxane, decamethylcyclotrisiloxane, decamethylcyclotrisiloxane) 18 6.5% 13% Open
Why 3910000000 is the answer
  • Classified in heading 3910 — Primary shaped polydimethylsiloxane , chapter 39 — Plastics and Their Products .
  • Matching official wording: the Chinese tariff description for this line is “初级形状的聚硅氧烷”, which contains the term used for siloxane in the official nomenclature.
  • Corroborated by declarations: 866 import records whose product descriptions match siloxane are declared under this heading family, i.e. 63% of the declarations matching the term fall under the single most-used code.
  • Reference only: classification is decided by China Customs on the goods as presented. Rates shown are the schedule’s reference figures and can include unit-based (specific) duties — see the full record for the complete breakdown.
Frequently asked

What is the HS code for siloxane in China?

The most specific Chinese customs tariff line for siloxane is 3910000000 — Silicones in primary forms. China applies a most-favoured-nation (MFN) import duty of 6.5% and value-added tax of 13% on this line.

Are there other HS codes that could apply to siloxane?

Yes. Other official tariff lines in the same area of the schedule cover siloxane: 2931900001 (Hexamethylcyclotrisiloxane(including octamethylcyotetrasiloxane, decamethylcyclotrisiloxane, decamethylcyclotrisiloxane)). The right code depends on the specific form, material and end use, so check the product description against each line.

Which HS code do importers actually declare for siloxane?

In Chinese import declaration records whose product descriptions match "siloxane", the most frequently used 10-digit line is 3910000000 — Silicones in primary forms, used in 866 records in our sample.

How is siloxane classified under the Chinese tariff?

Classification follows the Harmonized System: siloxane falls under heading 3910 and statistical line 3910000000. Chinese customs wording for this line is “初级形状的聚硅氧烷” (English: Silicones in primary forms). Classification is decided by China Customs on the basis of the goods as presented.

Browse the tariff around this code

Product name: siloxane (硅氧烷). This page is generated from the Chinese customs tariff schedule and from a corpus of real import declarations, and is provided for reference only. Search related product names.