HS code · 6-digit subheading
HS Code 3907.10 – Polyacetals; in primary forms
HS code 3907.10 is the 6-digit subheading for polyacetals, in primary forms. It is used for POM homopolymer, POM copolymer, acetal granules, acetal pellets and acetal powder.
What HS 3907.10 covers
This HS code covers polyacetals, also known as polyoxymethylene (POM), in primary forms such as granules, pellets, or powders. POM is a high-performance engineering thermoplastic renowned for its excellent stiffness, low friction, high dimensional stability, and good chemical resistance. It is widely used as a replacement for metals in precision parts due to its strength and machinability. Key industries utilizing POM include automotive (gears, fuel system components), electronics (connectors, housings), consumer goods (zippers, buckles), and industrial machinery (bearings, rollers). Major importers are typically countries with advanced manufacturing capabilities in these sectors, such as Germany, China, and the USA. Exporters often include nations with strong chemical and polymer production industries like Japan, Germany, and the USA. The trade in polyacetals is driven by the demand for durable, lightweight, and high-performance engineering plastics that can withstand demanding operational environments.
- Covers
- POM homopolymer
- POM copolymer
- Acetal granules
- Acetal pellets
- Acetal powder
- Low-friction POM
- Glass-filled POM
- Examples
- DuPont Delrin
- BASF Ultraform
- Celanese Hostaform
- Mitsubishi Engineering-Plastics Iupital
Codes often confused with 3907.10
Common mistake. This code might be confused with other engineering plastics like 390799 (other polyethers) or 3908 (polyamides) if the specific acetal chemical structure is not clearly identified.
Top exporters and importers of HS code 390710, 2025
In 2025, the largest exporter of HS code 390710 in UN Comtrade data was Germany, with 20% of world exports; the largest importer in UN Comtrade data was China, with 26% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Germany $422M 20% of world exports
- 2 South Korea $368M 17% of world exports
- 3 United States $317M 15% of world exports
World total: $2.1B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $668M 26% of world imports
- 2 Germany $201M 7.9% of world imports
- 3 Mexico $144M 5.6% of world imports
World total: $2.6B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for 3907.10 9
Brazil splits HS 3907.10 into 9 NCM codes, Mercosur's 8-digit tariff lines.
- 3907.10.10 Filled polyacetals, liquid or paste formsCom carga, nas formas previstas na Nota 6 a) deste Capítulo
- 3907.10.20 Filled polyacetals, solid bulk formsCom carga, nas formas previstas na Nota 6 b) deste Capítulo
- 3907.10.3 Without filler, in the forms provided for in Note 6 (a) to this ChapterSem carga, nas formas previstas na Nota 6 a) deste Capítulo Group
- 3907.10.31 Polydextrose, unfilled, liquid or paste formsPolidextrose
- 3907.10.39 Other unfilled polyacetals, liquid or paste formsOutros
- 3907.10.4 Without filler, in the forms provided for in Note 6 (b) to this Chapter, not stabilisedSem carga, nas formas previstas na Nota 6 b) deste Capítulo, não estabilizados Group
- 3907.10.41 Polydextrose, unfilled, unstabilised, solid formsPolidextrose
- 3907.10.42 Polyacetal powder, over 80% through 0.85 mm sieveOutros, em pó que passe através de uma peneira com abertura de malha de 0,85 mm em proporção superior a 80 %, em peso
- 3907.10.49 Other unfilled unstabilised polyacetals, solidOutros
- 3907.10.9 OtherOutros Group
- 3907.10.91 Other polyacetal granules, particle over 2 mmEm grânulos, de diâmetro de partícula superior a 2 mm, segundo a Norma ASTM E 11-70
- 3907.10.99 Other polyacetals in primary formsOutros
All Brazil NCM codes in heading 39.07 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 3907.10
What is HS code 390710?
HS code 390710 is a 6-digit subheading in the Harmonized System that covers: Polyacetals; in primary forms. This HS code covers polyacetals, also known as polyoxymethylene (POM), in primary forms such as granules, pellets, or powders. POM is a high-performance engineering thermoplastic renowned for its excellent stiffness, low friction, high dimensional stability, and good chemical resistance. It is widely used as a replacement for metals in precision parts due to its strength and machinability. Key industries utilizing POM include automotive (gears, fuel system components), electronics (connectors, housings), consumer goods (zippers, buckles), and industrial machinery (bearings, rollers). Major importers are typically countries with advanced manufacturing capabilities in these sectors, such as Germany, China, and the USA. Exporters often include nations with strong chemical and polymer production industries like Japan, Germany, and the USA. The trade in polyacetals is driven by the demand for durable, lightweight, and high-performance engineering plastics that can withstand demanding operational environments.
What products fall under HS code 390710?
POM homopolymer, POM copolymer, acetal granules, acetal pellets, acetal powder, low-friction POM, glass-filled POM
What are common misclassifications for HS code 390710?
This code might be confused with other engineering plastics like 390799 (other polyethers) or 3908 (polyamides) if the specific acetal chemical structure is not clearly identified.
Which countries are the top exporters of goods under HS code 390710?
In 2025, the top exporters of HS code 390710 in UN Comtrade data were Germany ($422M, 20% of world exports), South Korea ($368M) and the United States ($317M). World exports came to about $2.1B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 390710?
In 2025, the top importers of HS code 390710 in UN Comtrade data were China ($668M, 26% of world imports), Germany ($201M) and Mexico ($144M). World imports came to about $2.6B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 390710 structured?
HS code 390710 is a 6-digit subheading under the Harmonized System. The first 2 digits (39) identify the chapter, digits 3-4 (07) identify the heading, and digits 5-6 (10) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 390710?
Brazil splits HS code 390710 into 9 NCM codes: 3907.10.10 (Filled polyacetals, liquid or paste forms), 3907.10.20 (Filled polyacetals, solid bulk forms), 3907.10.31 (Polydextrose, unfilled, liquid or paste forms), 3907.10.39 (Other unfilled polyacetals, liquid or paste forms), 3907.10.41 (Polydextrose, unfilled, unstabilised, solid forms), 3907.10.42 (Polyacetal powder, over 80% through 0.85 mm sieve), 3907.10.49 (Other unfilled unstabilised polyacetals, solid), 3907.10.91 (Other polyacetal granules, particle over 2 mm), and more listed on this page. The first 6 digits of each match the HS code.