HS Code 3804
Residual Lyes and Lignin Sulphonates
HS code 3804 covers residual lyes from wood pulp manufacture, including lignin sulphonates, used as binders and dispersants in industrial applications.
4-digit Section VIBulk
HS Code 3804 — Residual Lyes and Lignin Sulphonates
This code covers the leftover liquids from making wood pulp. These 'spent lyes' contain lignin, which is used as a binder in concrete, animal feed, and dust control on roads.
What's included
- Calcium lignin sulphonate
- Concentrated black liquor
- Spent sulphite lye
- Desugared residual lyes
What's excluded
- Tall oil → use
3803(Tall oil is explicitly excluded from this heading even though it is a pulping byproduct.) - Sodium hydroxide → use
2815(Pure chemical caustic soda is classified under inorganic chemicals.)
Common examples
- Lignosulphonate powder for concrete admixture
- Liquid lignin binder for animal feed pellets
- Residual lye for road dust suppression
- Magnesium lignosulphonate
Frequently asked questions
What is the primary use of these lyes?
They are mostly used as plasticisers in concrete or as binding agents in the manufacturing of pellets.
Trade & shipping notes
- Typical duty range: 0% - 5%
- Documentation: Check for environmental regulations regarding the disposal or spill-containment of industrial lyes.
- Typical shipping mode: Bulk
- Top exporters: Norway, Germany, United States, South Africa
- Top importers: China, India, Brazil, Canada
Related HS codes
Key takeaway
Recycled industrial byproduct used as a versatile organic binder and dispersant.
Related HS codes
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