Ammonium Sulfamate Granular Herbicide

Water-soluble granules of ammonium sulfamate ((NH4)2SO3), an inorganic salt herbicide effective against woody plants and poison ivy when dissolved and sprayed. Sold in 1kg retail bags for backyard use, it fits HTS 3808.93.20.00 as a plant regulator/herbicide with inorganic substance. It acts systemically to inhibit enzyme activity in target plants.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5%+35.0%40%
🇲🇽Mexico5%+10.0%15%
🇨🇦Canada5%+10.0%15%
🇩🇪Germany5%+10.0%15%
🇯🇵Japan5%+10.0%15%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2921.42Lower: 16.5% vs 40%

If containing organic amide derivatives as primary active

Organic chemical compounds dominate classification when inorganic content is secondary.

3102.21.00.00Lower: 25% vs 40%

If for use as soil sterilant in large-scale applications

High-concentration soil treatments may be seen as fertilizers under Chapter 31.

3808.92Lower: 15% vs 40%

If fungicidal properties are emphasized over herbicidal

Dual-function products classified by principal use per GRI 3(a).

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Provide analytical certificates confirming ammonium sulfamate content over 50% for proper classification

Avoid moisture exposure during shipping to prevent clumping, which could lead to quality disputes at customs

Register with USDA APHIS if destined for agricultural use to meet plant protection standards

Related Products under HTS 3808.93.20.00

Copper Sulfate Pentahydrate Herbicide

A blue crystalline powder containing copper sulfate (CuSO4·5H2O), an inorganic compound used as a herbicide to control aquatic weeds and algae in ponds and irrigation canals. It is put up in retail packs for gardeners and farmers, falling under HTS 3808.93.20.00 because it is a herbicide preparation containing an inorganic substance. The product disrupts photosynthesis in target plants through copper ion release.

Sodium Chlorate Weed Killer Spray

A ready-to-use spray formulation containing sodium chlorate (NaClO3), an inorganic oxidizing agent that desiccates and kills broadleaf weeds on driveways and paths. Packaged in aerosol cans for retail sale to homeowners, it qualifies under HTS 3808.93.20.00 as a herbicide with inorganic active substance. The strong oxidizer breaks down plant cell structures upon contact.

Boric Acid Ant and Weed Control Powder

Dustable powder containing boric acid (H3BO3), an inorganic boron compound that kills weeds and repels insects when applied to soil or cracks. Retail shaker containers make it suitable for home use, classifying under HTS 3808.93.20.00 for herbicides with inorganic substances. It interferes with plant metabolism and insect digestion.

Potassium Arsenite Brush Killer

Liquid concentrate of potassium arsenite (KA3AsO3), a highly toxic inorganic arsenical herbicide for killing brush and invasive shrubs. Diluted for retail sprayer use by landowners, it is covered by HTS 3808.93.20.00 as a herbicide containing inorganic substance. Arsenic ions poison plant enzyme systems.

Sodium Metaborate Sprout Suppressant

Powdered sodium metaborate (NaBO2) applied to potato storage to prevent sprouting, acting as an anti-sprouting plant-growth regulator. Retail packs for small-scale farmers fit HTS 3808.93.20.00 as it contains an inorganic substance for such use. Boron inhibits cell division in sprout buds.

Calcium Cyanamide Plant Growth Regulator

Granular calcium cyanamide (CaCN2), an inorganic compound used as a plant growth regulator to enhance nodulation in legumes and control weeds. Sold in retail bags for organic farming, it falls under HTS 3808.93.20.00. Upon hydrolysis, it releases cyanamide which affects plant hormones.