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HSChapter 28
U.S. imports of sublimed, precipitated, and colloidal sulfur (HS 280200) totaled $1.1M in April 2026, traded with 5 countries.
Importers of Sublimed, Precipitated, and Colloidal Sulfur paid $113K in duties in April 2026 — an effective duty rate of 10% on $1.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. Sublimed, Precipitated, and Colloidal Sulfur imports of $1.1M in April 2026 ran 17% above the year-to-date monthly average of $928K.
Last updated: April 2026 dataProcessed through sublimation or precipitation to achieve fine particle size and high purity, these specialty sulfur forms (classified under 2802000000) are distinct from crude or recovered sulfur and serve niche applications in agriculture (fungicides and soil amendments), rubber vulcanization, and pharmaceutical manufacturing. Japan and China are the leading sources for US imports of this heading. The processing method — sublimed versus precipitated versus colloidal — determines particle size and surface area, which are critical specification parameters that buyers should confirm against technical data sheets.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Sublimed sulfur (flowers of sulfur) is produced by vapor condensation and has a relatively coarse particle size; precipitated sulfur (milk of sulfur) is chemically deposited and finer; colloidal sulfur is an ultrafine suspension. All three fall under 2802000000, but their particle-size and purity differences make them non-interchangeable in applications such as agricultural fungicides or rubber compounding — buyers should specify the form explicitly in purchase contracts.
Sulfur-based fungicides registered under FIFRA are regulated by the EPA, but elemental sulfur imported in bulk as a chemical intermediate (rather than as a formulated pesticide product) generally enters under standard CBP procedures. If the imported material is a formulated pesticide product, EPA registration and labeling requirements apply. Consult a licensed customs broker or regulatory counsel to confirm the correct entry pathway for your specific product.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2802000000 | SULFUR,SUBLIMED OR PRECIPATED;COLLODIAL SULFUR | $1.1M | 10.41% | $113K |
SULFUR,SUBLIMED OR PRECIPATED;COLLODIAL SULFUR
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2802000000 | SULFUR,SUBLIMED OR PRECIPATED;COLLODIAL SULFUR | $100K |
SULFUR,SUBLIMED OR PRECIPATED;COLLODIAL SULFUR
552 t
URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.
HS 284420
NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC
HS 284410
ANHYDROUS AMMONIA
HS 281410
ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES
HS 284443
SILICON, UNDER 99.99% (BY WEIGHT) SILICON
HS 280469
PHOSPHORIC ACID AND POLYPHOSPHORIC ACIDS
HS 280920
| State | Imports | Exports | Balance |
|---|---|---|---|
| South Carolina | $713K | -- | -$713K |
| Illinois | $193K | -- | -$193K |
| Georgia | $165K | $5K | -$160K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| CHARLESTON, SC | $475K | -- | -$475K |
| SAVANNAH, GA | $402K | $5K | -$398K |
| LONG BEACH, CA | $193K | $3K | -$190K |