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HSChapter 28
U.S. imports of commercial calcium hypochlorite (HS 282810) totaled $710K in June 2026, traded with 5 countries.
Importers of Commercial Calcium Hypochlorite paid $88K in duties in June 2026 — an effective duty rate of 12% on $710K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Calcium hypochlorite — the active ingredient in granular pool shock and industrial bleaching agents — enters the US under a single 10-digit line (2828100000) covering both commercial-grade and other forms. India is the leading import source, followed by Mexico and the United Kingdom. The compound's oxidizing nature subjects it to DOT hazardous materials regulations during transport, and importers must ensure proper UN packaging, labeling, and emergency response documentation accompany each shipment.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Calcium hypochlorite is classified as a Division 5.1 oxidizer under DOT and IMDG regulations. Shipments must use UN-approved packaging, carry proper hazard labels and markings, and be accompanied by a safety data sheet and, for ocean freight, a dangerous goods declaration. Importers should also verify EPA Toxic Substances Control Act (TSCA) compliance if the material is not already on the TSCA inventory.
The heading covers both commercial calcium hypochlorite (a mixture typically containing 65–70% available chlorine along with calcium chloride and calcium carbonate) and purer forms. The single 10-digit line 2828100000 captures all variants, so the grade distinction does not create a classification split at the 10-digit level — but it is commercially significant for pricing, specification compliance, and end-use suitability.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| INDIA | $710K | -- | -$710K |
| CANADA | -- | $616K | +$616K |
| MEXICO | -- | $475K | +$475K |
| TRINIDAD AND TOBAGO | -- | $123K | +$123K |
| BARBADOS | -- | $97K | +$97K |
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 |
|---|---|---|---|---|---|
| 2828100000 | COMMERCIAL CALCIUM HYPOCHLORITE | $710K | 12.40% | 100.00% | $88K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2828100000 | COMMERCIAL CALCIUM HYPOCHLORITE | $1.7M |
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 |
|---|---|---|---|
| Texas | $128K | $955K | +$827K |
| Illinois | -- | $241K | +$241K |
| New Jersey | $240K | -- | -$240K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | -- | $464K | +$464K |
| PORT EVERGLADES, FL | -- | $413K | +$413K |
| SAVANNAH, GA | $316K | -- | -$316K |