HS code · 4-digit heading
HS Code 32.02 – Tanning substances; synthetic organic or inorganic tanning substances; tanning preparations, whether or not containing natural tanning substances, enzymatic preparations for pre-tanning
What HS 32.02 covers
Heading 3202 is dedicated to synthetic organic or inorganic tanning substances, as well as tanning preparations that may or may not contain natural tanning substances. This classification also uniquely includes enzymatic preparations specifically for pre-tanning. This heading is crucial for the modern leather industry, encompassing a wide array of chemical agents developed to enhance or replace traditional vegetable tanning methods. The scope is broad, covering everything from chrome salts and synthetic organic tannins (syntans) to complex proprietary tanning formulations and enzymatic solutions used in the initial stages of hide processing. This heading distinguishes manufactured tanning agents and preparations from the natural extracts of 3201. The inclusion of 'enzymatic preparations for pre-tanning' (e.g., for liming, bating, or deliming) highlights its comprehensive coverage of chemical aids in leather manufacturing. Accurate classification under 3202 is vital for trade compliance due to strict chemical regulations, environmental standards (especially concerning heavy metals like chromium), and varying tariffs. Misclassification can lead to severe penalties, environmental violations, and significant trade disruptions. As part of Chapter 32, which focuses on tanning and dyeing extracts and preparations, this heading reflects the advanced chemical engineering employed in contemporary leather production, balancing efficiency with environmental responsibility.
- Covers
Synthetic organic tannins (syntans), Basic chromium sulphate (chrome tanning salt), Aluminium sulphate (tanning grade), Zirconium tanning salts, Glutaraldehyde (tanning agent), Melamine-formaldehyde resins (tanning agents), Phenolic syntans, Acrylic syntans, Polymeric syntans, Sulfonated oils (fatliquors, often in tanning preparations), Tanning preparations containing natural and synthetic agents, Enzymatic bating agents, Enzymatic deliming agents, Pre-tanning enzymatic preparations, Auxiliary tanning agents (e.g., buffers, sequestering agents, if part of a preparation), Tanning oils, Resorcinol-formaldehyde resins (syntans), Polymer dispersions for tanning, Inorganic tanning preparations, Chrome-free tanning agents, Wet-white tanning agents, Retanning agents (synthetic).
- Examples
A Turkish leather goods producer imports large volumes of basic chromium sulphate from Germany, shipped through the Black Sea and Mediterranean, for its extensive chrome tanning operations. Concurrently, a Mexican tannery specializing in high-performance leathers sources advanced synthetic organic tanning preparations from Switzerland, transported by air freight for efficiency. Furthermore, a Vietnamese footwear manufacturer imports enzymatic pre-tanning agents from Denmark, moving by sea, to optimize the preparation of hides before the main tanning process, ensuring consistent quality.
Subheadings under 32.02 2
Codes often confused with 32.02
Common mistake. Common misclassification errors for Heading 3202 involve distinguishing raw chemical compounds from prepared tanning substances. For example, pure basic chromium sulphate might be incorrectly classified under Chapter 28 (inorganic chemicals) if not clearly presented or intended as a tanning substance or preparation. Similarly, certain organic chemicals like glutaraldehyde could be confused with Chapter 29 (organic chemicals) if their primary use as a tanning agent is not specified. Surface-active preparations (3402) or other chemical products not elsewhere specified (3824) are also sometimes mistakenly used for complex tanning preparations if their specific tanning function is not explicitly recognized. The key is the *intended use and formulation as a tanning substance or preparation*.
Top exporters and importers of HS code 3202, 2025
In 2025, the largest exporter of HS code 3202 in UN Comtrade data was Italy, with 21% of world exports; the largest importer in UN Comtrade data was China, with 18% 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 Italy $93M 21% of world exports
- 2 France $52M 12% of world exports
- 3 Spain $51M 11% of world exports
World total: $445M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $93M 18% of world imports
- 2 Italy $48M 9.5% of world imports
- 3 Brazil $38M 7.6% of world imports
World total: $505M 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.
Questions about HS 32.02
What is HS code 3202?
HS code 3202 is a 4-digit heading in the Harmonized System that covers: Tanning substances; synthetic organic or inorganic tanning substances; tanning preparations, whether or not containing natural tanning substances, enzymatic preparations for pre-tanning. Heading 3202 is dedicated to synthetic organic or inorganic tanning substances, as well as tanning preparations that may or may not contain natural tanning substances. This classification also uniquely includes enzymatic preparations specifically for pre-tanning. This heading is crucial for the modern leather industry, encompassing a wide array of chemical agents developed to enhance or replace traditional vegetable tanning methods. The scope is broad, covering everything from chrome salts and synthetic organic tannins (syntans) to complex proprietary tanning formulations and enzymatic solutions used in the initial stages of hide processing. This heading distinguishes manufactured tanning agents and preparations from the natural extracts of 3201. The inclusion of 'enzymatic preparations for pre-tanning' (e.g., for liming, bating, or deliming) highlights its comprehensive coverage of chemical aids in leather manufacturing. Accurate classification under 3202 is vital for trade compliance due to strict chemical regulations, environmental standards (especially concerning heavy metals like chromium), and varying tariffs. Misclassification can lead to severe penalties, environmental violations, and significant trade disruptions. As part of Chapter 32, which focuses on tanning and dyeing extracts and preparations, this heading reflects the advanced chemical engineering employed in contemporary leather production, balancing efficiency with environmental responsibility.
What products fall under HS code 3202?
Synthetic organic tannins (syntans), Basic chromium sulphate (chrome tanning salt), Aluminium sulphate (tanning grade), Zirconium tanning salts, Glutaraldehyde (tanning agent), Melamine-formaldehyde resins (tanning agents), Phenolic syntans, Acrylic syntans, Polymeric syntans, Sulfonated oils (fatliquors, often in tanning preparations), Tanning preparations containing natural and synthetic agents, Enzymatic bating agents, Enzymatic deliming agents, Pre-tanning enzymatic preparations, Auxiliary tanning agents (e.g., buffers, sequestering agents, if part of a preparation), Tanning oils, Resorcinol-formaldehyde resins (syntans), Polymer dispersions for tanning, Inorganic tanning preparations, Chrome-free tanning agents, Wet-white tanning agents, Retanning agents (synthetic).
What are common misclassifications for HS code 3202?
Common misclassification errors for Heading 3202 involve distinguishing raw chemical compounds from prepared tanning substances. For example, pure basic chromium sulphate might be incorrectly classified under Chapter 28 (inorganic chemicals) if not clearly presented or intended as a tanning substance or preparation. Similarly, certain organic chemicals like glutaraldehyde could be confused with Chapter 29 (organic chemicals) if their primary use as a tanning agent is not specified. Surface-active preparations (3402) or other chemical products not elsewhere specified (3824) are also sometimes mistakenly used for complex tanning preparations if their specific tanning function is not explicitly recognized. The key is the *intended use and formulation as a tanning substance or preparation*.
Which countries are the top exporters of goods under HS code 3202?
In 2025, the top exporters of HS code 3202 in UN Comtrade data were Italy ($93M, 21% of world exports), France ($52M) and Spain ($51M). World exports came to about $445M, 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 3202?
In 2025, the top importers of HS code 3202 in UN Comtrade data were China ($93M, 18% of world imports), Italy ($48M) and Brazil ($38M). World imports came to about $505M, 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 3202 structured?
HS code 3202 is a 4-digit heading under Chapter 32 of the Harmonized System. The first 2 digits (32) identify the chapter, and digits 3-4 (02) specify the heading. This code contains multiple 6-digit subheadings for precise product classification.