Magnesium Lignosulfonate Granules
Magnesium lignosulfonate granules are produced by neutralizing lignin sulfonic acid from spent sulfite pulping liquor with magnesium compounds, used primarily as a binder in briquettes and foundry applications. HTS 3804.00.10.00 applies as it's a direct salt derivative from wood pulp manufacture.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +35.0% | 35% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as chemical binder preparation
When marketed specifically for non-pulp applications with added modifiers, classifies under chemical preparations.
If Ammonium salts of lignin sulfonic acid fall under hydrogen peroxide/sulfoxides heading due to specific chemical classification.
HTS structure places ammonium lignosulfonates in 2847 based on cation specificity.
Not sure which classification is right?
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Import Tips & Compliance
• Submit process flow documentation proving derivation from sulfite wood pulp, not ammonium-based alternatives
• Test for heavy metal content (arsenic, lead) common in pulp byproducts; may require FDA prior notice if for feed use
• Use proper dust control during loading to prevent classification issues as hazardous particulate matter
Related Products under HTS 3804.00.10.00
Calcium Lignosulfonate Powder
Calcium lignosulfonate is a water-soluble anionic polyelectrolyte derived from the sulfite pulping process of wood, consisting of lignin sulfonic acid neutralized with calcium. It falls under HTS 3804.00.10.00 as a salt of lignin sulfonic acid, typically used as a dispersant in concrete admixtures and as a binder in animal feed pellets.
Sodium Lignosulfonate Liquid
Sodium lignosulfonate is the sodium salt of lignin sulfonic acid obtained as a spent sulfite liquor from wood pulp production, often concentrated for use as a dust suppressant and concrete plasticizer. Classified under HTS 3804.00.10.00 due to its origin as a lignin sulfonic acid salt from the wood pulping process.
Concentrated Lignosulfonic Acid Sodium Salt Solution
This 50% solids solution of sodium lignosulfonate is desugared and concentrated spent sulfite liquor from softwood pulping, employed as a dispersant in dyestuffs and pesticides. It qualifies for HTS 3804.00.10.00 as chemically treated residual lye containing lignin sulfonic acid salt.
Ammonium Lignosulfonate Spray-Dried Powder
Spray-dried ammonium lignosulfonate powder from neutralized sulfite pulp waste, serves as a water-reducing agent in concrete and emulsion stabilizer. Despite ammonium cation, classified under HTS 3804.00.10.00 as lignin sulfonic acid salt from wood pulp lyes (note: some classifications debate 2847 placement).
Desugared Calcium Lignosulfonate Flakes
Flaked calcium lignosulfonate with reduced sugar content from softwood sulfite process, used in ceramics as binder and in water treatment as flocculant. HTS 3804.00.10.00 covers this chemically treated (desugared) lignin sulfonic acid salt.