Product classification
HS code for Regenerated cellulose sponge: 3921.14
Plastics, plates, sheets, film, foil and strip, of regenerated cellulose, cellular.
Classification of regenerated cellulose sponge under HS 3921.14
Regenerated cellulose sponges are classified under HS code 3921.14. This code falls within Chapter 39, which covers plastics and articles thereof. Specifically, heading 3921 refers to other plates, sheets, film, foil, and strip of plastics. Subheading 3921.14 is dedicated to products made of regenerated cellulose that have a cellular (porous) structure. Regenerated cellulose is a material derived from processed wood pulp or cotton linters, transformed into a soluble polymer and then chemically solidified into a solid form. When manufactured with a cellular structure, it creates the familiar sponge texture used for cleaning and industrial applications. The classification is based on the chemical composition of the base material and the physical state. Even though cellulose is a natural polymer, the regenerated process classifies it within the plastics chapter of the Harmonized System, as it has been significantly chemically modified from its natural state to achieve its final form.
- Covers
- Cellulose sponge blocks for household cleaning
- Cellular regenerated cellulose sheets
- Biodegradable cellulose sponge material in bulk
- Compressed cellulose sponges for industrial use
- Sponge cloths made of 100% regenerated cellulose
- Also under 3921.14
- Spontex cellulose sponges
- Viskase casings
- NatureFlex films
- Cellophane brand packaging
Codes often confused with 3921.14
Common mistake. HS code 3921.14 is often confused with 3921.13, which covers cellular plastics made of polyurethanes. While they look similar, the chemical composition of the polymer is the deciding factor. Furthermore, if the sponge is made up into a specific cleaning tool with a handle or combined with other materials like abrasive pads, it might be classified under 9603 as a cleaning tool. If the cellulose is not regenerated but is a natural sea sponge, it falls under 0511.99.
Top exporters and importers of HS 392114 (the code used for regenerated cellulose sponge), 2025
In 2025, the largest exporter of HS 392114 (the code used for regenerated cellulose sponge) in UN Comtrade data was Germany, with 30% of world exports; the largest importer in UN Comtrade data was the United States, with 13% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 392114, not only regenerated cellulose sponge.
Top exporters 2025 · share of world exports
- 1 Germany $54M 30% of world exports
- 2 Spain $31M 18% of world exports
- 3 China $26M 15% of world exports
World total: $178M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $24M 13% of world imports
- 2 France $17M 9.0% of world imports
- 3 Mexico $12M 6.7% of world imports
World total: $185M 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 code for regenerated cellulose sponge
Brazil classifies regenerated cellulose sponge under NCM 3921.14.00: HS 3921.14 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about regenerated cellulose sponge
What is the HS code for Regenerated cellulose sponge?
The HS code for Regenerated cellulose sponge is 392114 (Plastics; plates, sheets, film, foil and strip, of regenerated cellulose, cellular). The HS code for regenerated cellulose sponge in cellular plates, sheets, or strips is 3921.14.
How do I classify Regenerated cellulose sponge for customs?
Regenerated cellulose sponge is classified under HS code 392114 — Plastics; plates, sheets, film, foil and strip, of regenerated cellulose, cellular. This is a 6-digit subheading level code.
Is a sponge with a scouring pad still 3921.14?
Usually, no. If the sponge is bonded to an abrasive scouring pad, it is often classified under 6805 or 3924 depending on the component that gives the article its essential character.
Which countries are the top exporters of regenerated cellulose sponge (HS 392114)?
In 2025, the top exporters of HS 392114 (the code used for regenerated cellulose sponge) in UN Comtrade data were Germany ($54M, 30% of world exports), Spain ($31M) and China ($26M). World exports came to about $178M, 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 regenerated cellulose sponge (HS 392114)?
In 2025, the top importers of HS 392114 (the code used for regenerated cellulose sponge) in UN Comtrade data were the United States ($24M, 13% of world imports), France ($17M) and Mexico ($12M). World imports came to about $185M, 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.
Is the HS code for Regenerated cellulose sponge the same in all countries?
The base HS code 392114 for Regenerated cellulose sponge is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for regenerated cellulose sponge in Brazil?
In Brazil, regenerated cellulose sponge (HS 392114) is classified under NCM 3921.14.00.