HS code · 6-digit subheading
HS Code 3914.00 – Ion-exchangers; based on polymers of heading no. 3901 to 3913, in primary forms
HS code 3914.00 is the 6-digit subheading for ion-exchangers, based on polymers of heading no. 3901 to 3913, in primary forms. It is used for cation exchange resin, anion exchange resin, mixed bed resin, chelating resin and adsorption resin.
What HS 3914.00 covers
This HS code specifically covers ion-exchange resins based on polymers from headings 3901 to 3913, traded in primary forms. These specialized polymers are crucial for water treatment, chemical purification, pharmaceutical manufacturing, and various industrial separation processes. Key importers include countries with significant industrial activity, such as the USA, China, Germany, and Japan, which rely heavily on purified water and chemical streams. Exporters are typically specialized chemical companies with advanced polymer synthesis capabilities, often located in Europe, North America, and East Asia. The trade involves different types of resins, including strong acid, weak acid, strong base, and weak base exchangers, each designed for specific ion removal or recovery. Understanding the resin's matrix, functional groups, and capacity is paramount for traders. The global demand is driven by increasing environmental regulations and industrial needs for high-purity substances.
- Covers
- Cation exchange resin
- Anion exchange resin
- Mixed bed resin
- Chelating resin
- Adsorption resin
- Styrenic ion exchange resin
- Acrylic ion exchange resin
- Examples
- Dowex Ion Exchange Resins
- Purolite Ion Exchange Resins
- Lanxess Lewatit
- Mitsubishi Diaion
- Thermax Tulsion
Codes often confused with 3914.00
Common mistake. This code is distinct from the raw polymers themselves (e.g., 3901-3913) and should not be confused with other filtration media not based on ion-exchange polymers, or with finished ion-exchange columns.
Top exporters and importers of HS code 391400, 2025
In 2025, the largest exporter of HS code 391400 in UN Comtrade data was China, with 18% of world exports; the largest importer in UN Comtrade data was the United States, with 15% 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 China $396M 18% of world exports
- 2 Sweden $393M 18% of world exports
- 3 United States $348M 16% of world exports
World total: $2.2B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $364M 15% of world imports
- 2 China $235M 9.4% of world imports
- 3 Germany $213M 8.5% of world imports
World total: $2.5B 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 3914.00 3
Brazil splits HS 3914.00 into 3 NCM codes, Mercosur's 8-digit tariff lines.
- 3914.00.1 Of polystyrene and its copolymersDe poliestireno e seus copolímeros Group
- 3914.00.11 Sulphonated styrene-divinylbenzene ion-exchangersDe copolímeros de estireno-divinilbenzeno, sulfonados
- 3914.00.19 Other polystyrene-based ion-exchangersOutros
- 3914.00.90 Other ion-exchangers based on polymersOutros
All Brazil NCM codes in heading 39.14 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 3914.00
What is HS code 391400?
HS code 391400 is a 6-digit subheading in the Harmonized System that covers: Ion-exchangers; based on polymers of heading no. 3901 to 3913, in primary forms. This HS code specifically covers ion-exchange resins based on polymers from headings 3901 to 3913, traded in primary forms. These specialized polymers are crucial for water treatment, chemical purification, pharmaceutical manufacturing, and various industrial separation processes. Key importers include countries with significant industrial activity, such as the USA, China, Germany, and Japan, which rely heavily on purified water and chemical streams. Exporters are typically specialized chemical companies with advanced polymer synthesis capabilities, often located in Europe, North America, and East Asia. The trade involves different types of resins, including strong acid, weak acid, strong base, and weak base exchangers, each designed for specific ion removal or recovery. Understanding the resin's matrix, functional groups, and capacity is paramount for traders. The global demand is driven by increasing environmental regulations and industrial needs for high-purity substances.
What products fall under HS code 391400?
Cation exchange resin, Anion exchange resin, Mixed bed resin, Chelating resin, Adsorption resin, Styrenic ion exchange resin, Acrylic ion exchange resin
What are common misclassifications for HS code 391400?
This code is distinct from the raw polymers themselves (e.g., 3901-3913) and should not be confused with other filtration media not based on ion-exchange polymers, or with finished ion-exchange columns.
Which countries are the top exporters of goods under HS code 391400?
In 2025, the top exporters of HS code 391400 in UN Comtrade data were China ($396M, 18% of world exports), Sweden ($393M) and the United States ($348M). World exports came to about $2.2B, 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 391400?
In 2025, the top importers of HS code 391400 in UN Comtrade data were the United States ($364M, 15% of world imports), China ($235M) and Germany ($213M). World imports came to about $2.5B, 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 391400 structured?
HS code 391400 is a 6-digit subheading under the Harmonized System. The first 2 digits (39) identify the chapter, digits 3-4 (14) identify the heading, and digits 5-6 (00) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 391400?
Brazil splits HS code 391400 into 3 NCM codes: 3914.00.11 (Sulphonated styrene-divinylbenzene ion-exchangers), 3914.00.19 (Other polystyrene-based ion-exchangers), 3914.00.90 (Other ion-exchangers based on polymers). The first 6 digits of each match the HS code.