Lignin Sulfonate Concrete Dispersant
Lignin sulfonate concrete dispersant, a concentrated sodium-based lignin sulfonate acting as a high-range water reducer in ready-mix concrete, directly derived from black liquor of sulfite pulp mills. It is a residual lye from wood pulp, classifiable under tariff item 3804.00.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is a prepared additive for cements, mortars or concretes
Prepared additives for concrete may be classified under heading 38.24.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the product is a lignin sulphonate and not a formulated concrete admixture
• Provide documentation of the sulfite pulping process
• Ensure the product does not contain tall oil
Related Products under Tariff item 3804.00.00
Ammonium Lignosulfonate Granules
Granulated ammonium lignosulfonate used as a dust control agent and ceramic binder, produced from desugared lignin sulfonic acids in wood pulp spent liquors. It is a chemically treated residual lye, classifiable under tariff item 3804.00.00.
Ammonium Lignosulfonate Spray-Dried Powder
Ammonium lignosulfonate spray-dried powder derived from neutralized sulfite pulp waste. It is a residual lye from wood pulp manufacture, chemically treated and concentrated, and falls under tariff item 3804.00.00 as a lignin sulphonate.
Calcium Lignosulfonate Liquid
Calcium lignosulfonate liquid, a concentrated residual lye from wood pulp sulfite digestion, used as a concrete plasticizer and animal feed pellet binder. It falls under tariff item 3804.00.00 as a lignin sulphonate.
Calcium Lignosulfonate Powder
Calcium lignosulfonate powder, a water-soluble anionic polyelectrolyte from sulfite pulping of wood. It is a residual lye, chemically treated and concentrated, and is classifiable under tariff item 3804.00.00 as a lignin sulphonate.
Chrome Tanning Agent Lignin Derivative
Chrome tanning agent lignin derivative, a specially precipitated calcium lignosulfonate from pulp mill recovery used to complex chrome salts in leather tanning. It is a chemically treated residual lye from wood pulp, classifiable under tariff item 3804.00.00.
Concentrated Lignosulfonic Acid Sodium Salt Solution
Concentrated lignosulfonic acid sodium salt solution, desugared and concentrated spent sulfite liquor from softwood pulping. It is a residual lye from wood pulp manufacture, chemically treated, and falls under tariff item 3804.00.00 as a lignin sulphonate.