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HSChapter 25
U.S. imports of sulfur (crude, refined, and all kinds except sublimed, precipitated, or colloidal) (HS 250300) totaled $78.3M in April 2026, traded with 11 countries.
Importers of Sulfur (Crude, Refined, and All Kinds Except Sublimed, Precipitated, or Colloidal) paid $49K in duties in April 2026 — an effective duty rate of 9.6% on $509K in dutiable value, based on actual customs collections rather than the published tariff schedule. Sulfur (Crude, Refined, and All Kinds Except Sublimed, Precipitated, or Colloidal) imports of $78.3M in April 2026 ran 26% above the year-to-date monthly average of $62.2M.
Last updated: April 2026 dataCrude and refined elemental sulfur — the bulk commodity recovered from petroleum refining and natural gas processing — is the dominant product under this heading, with the US schedule separating crude/unrefined (2503000010) from refined sulfur (2503000090). Sulfur is a primary input for sulfuric acid, fertilizers (superphosphates), and rubber vulcanization, making it a high-volume industrial mineral. Canada is by far the largest US import source, driven by Alberta's oil sands and natural gas operations that generate large volumes of recovered sulfur as a byproduct.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Crude or unrefined sulfur (2503000010) is typically recovered directly from petroleum or gas processing with minimal further treatment — it may contain impurities and is often shipped in molten or granular form for industrial use. Refined sulfur (2503000090) has undergone additional purification to meet higher purity specifications required for certain chemical or agricultural applications. The distinction is based on the degree of processing and purity, and importers should obtain mill certificates or supplier specifications to support the correct line selection.
No. The heading explicitly excludes sublimed sulfur, precipitated sulfur, and colloidal sulfur — those forms are classified in Chapter 28 as inorganic chemicals. This heading covers only bulk elemental sulfur in its crude, refined, or other non-sublimed/non-precipitated forms. Importers dealing in pharmaceutical-grade or finely processed sulfur should confirm the correct chapter with a customs broker.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $77.8M | $791K | -$77.0M |
| NEW CALEDONIA | -- | $26.3M | +$26.3M |
| MOROCCO | -- | $22.7M | +$22.7M |
| NAMIBIA | -- | $20.3M | +$20.3M |
| PAPUA NEW GUINEA | -- | $19.0M | +$19.0M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2503000010 | CRDE/UNREFIND SULFUR NT SUBLIMED/PRECIPTD/COLLOIDL | $43.8M | -- | -- |
| 2503000090 | SULFUR, REFINED, NT SUBLIMED, PRECIPTD OR COLLOIDL | $34.5M | 9.59% | $49K |
CRDE/UNREFIND SULFUR NT SUBLIMED/PRECIPTD/COLLOIDL
SULFUR, REFINED, NT SUBLIMED, PRECIPTD OR COLLOIDL
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2503000090 | SULFUR, REFINED, NT SUBLIMED, PRECIPTD OR COLLOIDL | $74.1M |
| 2503000010 | CRDE/UNREFIND SULFUR NT SUBLIMED/PRECIPTD/COLLOIDL | $50.5M |
SULFUR, REFINED, NT SUBLIMED, PRECIPTD OR COLLOIDL
144.2K t
CRDE/UNREFIND SULFUR NT SUBLIMED/PRECIPTD/COLLOIDL
88.2K t
PORTLAND CEMENT EXCEPT WHITE PORTLAND CEMENT
HS 252329
SALT INCL TBL/DENTRD, PURE SODM CHLOR ETC; SEA WTR
HS 250100
UNGRND NAT CAL PHSPH, ALUM CAL PHOS A PHOS CHALK
HS 251010
FLUORSPAR OV 97% OF CALCIUM FLUORD BY WGHT
HS 252922
PEBBLES, GRAVEL ETC. FOR CONCRETE AGGREGATES ETC.
HS 251710
WHITE PORTLAND CEMENT WHTHR OR NT ART COLORED
HS 252321
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | -- | $58.3M | +$58.3M |
| Texas | $289K | $51.8M | +$51.5M |
| Minnesota | $24.3M | $295K | -$24.0M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LONG BEACH, CA | -- | $44.4M | +$44.4M |
| BEAUMONT, TX | -- | $40.2M | +$40.2M |
| TAMPA, FL | $24.3M | $6.0M | -$18.3M |