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HSChapter 28
U.S. imports of peroxoborates (perborates) (HS 284030) totaled $317K in June 2026, traded with 4 countries.
Importers of Peroxoborates (Perborates) paid $43K in duties in June 2026 — an effective duty rate of 14% on $317K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Sodium perborate, the dominant commercial compound in this heading, is a bleaching and oxidizing agent widely used in laundry detergents, dental products, and industrial cleaning formulations. The US schedule distinguishes sodium perborate (2840300010) from other peroxoborates (2840300050), with Slovenia and Austria — both European producers with established chemical manufacturing infrastructure — leading US import supply. Importers should note that China is also a significant source, and shipments from that origin warrant review for applicable Section 301 treatment.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Both sodium perborate monohydrate and tetrahydrate classify under 2840300010 as sodium perborate — the hydration level does not create a separate tariff line. However, the distinction matters commercially because monohydrate has higher active oxygen content and different solubility characteristics, which affects end-use suitability and may be specified in purchase contracts.
The entry should be supported by a supplier certificate of analysis identifying the compound as sodium perborate or another specific peroxoborate. If the product is a sodium perborate, it files under 2840300010; all other peroxoborates use 2840300050. Ambiguous product descriptions on commercial invoices are a common cause of classification disputes.
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Monthly import values over time
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2840300010 | SODIUM PERBORATE | $317K | 13.70% | 100.00% | $43K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2840300000 | PEROXOBORATES (PERBORATES) | $66K |
URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.
HS 284420
ANHYDROUS AMMONIA
HS 281410
NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC
HS 284410
TUNGSTATES (WOLFRAMATES)
HS 284180
ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES
HS 284443
ALUMINUM OXIDE, EXCEPT ARTIFICIAL CORUNDUM, NESOI
HS 281820
| State | Imports | Exports | Balance |
|---|---|---|---|
| New York | $163K | $26K | -$137K |
| South Carolina | $79K | -- | -$79K |
| Pennsylvania | $75K | -- | -$75K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $163K | -- | -$163K |
| CHARLESTON, SC | $79K | -- | -$79K |
| NEWARK, NJ | $75K | -- | -$75K |