Glufosinate-Ammonium Herbicide
Glufosinate-ammonium is the ammonium salt of 2-amino-4-[hydroxy(methyl)phosphonoyl]butanoic acid, a broad-spectrum contact herbicide used for post-emergence weed control in crops like corn and soybeans. It falls under HTS 2931.49.0010 as a non-halogenated organo-phosphorus derivative with the specific phosphonoyl structure defining glufosinate salts. This technical grade product is imported for formulation into commercial herbicide products.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 3.7% | — | 3.7% |
| 🇲🇽Mexico | 3.7% | — | 3.7% |
| 🇨🇦Canada | 3.7% | — | 3.7% |
| 🇩🇪Germany | 3.7% | — | 3.7% |
| 🇯🇵Japan | 3.7% | — | 3.7% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If formulated as herbicide containing other additives
Formulated pesticide products with glufosinate as active ingredient but including surfactants or stabilizers classify under Chapter 38 as herbicides.
If other organo-inorganic compounds without glufosinate structure
Different phosphorous-containing organo-inorganic structures fall under the residual 'other' subheading of 2931.90.
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Import Tips & Compliance
• Obtain EPA registration and import alerts for pesticide active ingredients; provide technical data sheets confirming glufosinate content
• Ensure proper labeling as hazardous material (UN 2815) with phosphonic acid group declarations for DOT compliance
• Verify purity >95% to avoid reclassification; common pitfall is contamination leading to mixture headings
Related Products under HTS 2931.49.00.10
Glufosinate Acid Technical Powder
Pure glufosinate acid (2-amino-4-[hydroxy(methyl)phosphonoyl]butanoic acid) in technical powder form serves as the base active ingredient for herbicide production. Classified under HTS 2931.49.0010 due to its specific organo-phosphorus structure as a non-halogenated derivative. Imported primarily by agrochemical manufacturers for salt formation and formulation.
Glufosinate Isopropylammonium Salt
The isopropylammonium salt form of glufosinate provides enhanced solubility for herbicide applications in no-till farming systems. This specific ester/salt variant matches HTS 2931.49.0010's coverage of glufosinate salts and esters as non-halogenated organo-phosphorus compounds. Used in manufacturing Liberty-brand equivalent herbicides.
Glufosinate Sodium Salt Solution
Aqueous solution of glufosinate sodium salt (10-20% concentration) imported for dilution into foliar herbicide sprays. Falls under HTS 2931.49.0010 per chapter note (d) allowing water-dissolved chemically defined organic compounds like this glufosinate salt. Common for industrial-scale weed management programs.
Technical Grade Glufosinate 95% WP
95% wettable powder formulation of glufosinate free acid with minimal dispersants, qualifying as the pure compound with stabilizer per chapter note (f). Classified in HTS 2931.49.0010 as the defining non-halogenated organo-phosphorus derivative. Imported for final spray formulation by formulators.
Glufosinate Monoammonium Salt Crystals
Crystalline monoammonium salt of glufosinate, chemically defined with molecular formula C5H15N2O4P, used in precision agriculture herbicide blends. HTS 2931.49.0010 applies specifically to this glufosinate salt as a non-halogenated organo-phosphorus compound. High-purity grade for GMO crop protection.
Glufosinate Potassium Salt
Potassium salt variant of glufosinate offering better cold-weather solubility for northern hemisphere applications. Meets HTS 2931.49.0010 criteria as a chemically defined glufosinate salt within non-halogenated organo-phosphorus derivatives. Imported for specialty herbicide manufacturing.