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HSChapter 28
U.S. imports of sodium sulfates (other than disodium sulfate) (HS 283319) totaled $601K in April 2026, traded with 9 countries.
Importers of Sodium Sulfates (Other Than Disodium Sulfate) paid $75K in duties in April 2026 — an effective duty rate of 12% on $601K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataSodium sesquisulfate and other sodium sulfate compounds that fall outside the disodium sulfate definition are consolidated under a single US tariff line (2833190000). Germany leads US supply of these specialty sodium sulfate forms, with Turkey and Spain also notable sources — a supplier profile that reflects European chemical production of niche inorganic salts. These compounds appear in specialty detergent formulations, analytical chemistry, and certain pharmaceutical excipient applications.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Heading 283319 covers sodium sulfate compounds other than disodium sulfate (Na₂SO₄), such as sodium sesquisulfate (Na₃H(SO₄)₂) and similar mixed or complex sodium sulfate salts. If a product's chemical formula or CAS number does not correspond to standard disodium sulfate, it likely belongs here, and importers should confirm classification with a licensed customs broker.
Importers sourcing from China should verify whether any Section 301 tariff actions apply to their specific product under this heading, as inorganic chemicals from China have been subject to Section 301 measures. The applicable list and product scope should be confirmed with a licensed customs broker or trade attorney before entry.
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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 |
|---|---|---|---|---|
| 2833190000 | SODIUM SULFATES, EXCEPT DISODIUM SULFATES, NESOI | $601K | 12.44% | $75K |
SODIUM SULFATES, EXCEPT DISODIUM SULFATES, NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2833190000 | SODIUM SULFATES, EXCEPT DISODIUM SULFATES, NESOI | $2.3M |
SODIUM SULFATES, EXCEPT DISODIUM SULFATES, NESOI
8.8M kg
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 |
|---|---|---|---|
| Kansas | -- | $1.2M | +$1.2M |
| Ohio | $200K | $584K | +$383K |
| South Carolina | $10K | $247K | +$237K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| EL PASO, TX | -- | $1.2M | +$1.2M |
| SAVANNAH, GA | $399K | -- | -$399K |
| LAREDO, TX | -- | $289K | +$289K |