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HSChapter 28
U.S. imports of phosphates (other, nesoi) (HS 283529) totaled $11.9M in July 2026, traded with 21 countries.
Importers of Phosphates (Other, NESOI) paid $3.8M in duties in July 2026 — an effective duty rate of 35% on $10.9M in dutiable value, based on actual customs collections rather than the published tariff schedule. Phosphates (Other, NESOI) imports of $11.9M in July 2026 ran 189% above the year-to-date monthly average of $4.1M.
Last updated: July 2026 dataAluminum phosphates, triammonium phosphate, trisodium phosphate, and a broad catch-all of other phosphate salts are grouped under this residual heading, reflecting the chemical diversity of industrial phosphate chemistry. Belgium and Germany lead US import supply, with China a significant third source — an origin that may carry Section 301 tariff exposure depending on the specific product. The US schedule breaks this heading into five distinct tariff lines (2835291000 through 2835299050), covering aluminum phosphates, triammonium phosphates, trisodium phosphate, and two residual NESOI lines, so precise chemical identification is essential for correct classification. Trisodium phosphate, widely used as a food additive and industrial cleaner, may require FDA review when imported for food applications.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
242 shipments/mo
Classification depends on the specific cation paired with the phosphate anion. Aluminum phosphates (AlPO₄ and related salts) go to 2835291000; triammonium phosphate to 2835292000; trisodium phosphate (Na₃PO₄) to 2835293000. Phosphate salts not specifically described by those lines fall to the residual NESOI provisions (2835295100 or 2835299050). Importers should provide the chemical name, CAS number, and formula on entry documentation and consult a licensed customs broker for borderline cases.
Yes. Trisodium phosphate used as a food additive or processing aid is subject to FDA oversight, including review of purity and labeling. Industrial-grade material used as a cleaner or surface treatment agent is not subject to FDA food-additive requirements but may face other regulatory considerations depending on end use. The HTS classification is the same regardless of grade, so the intended use declaration and accompanying documentation are critical at entry.
ImportsExports
Imports
$11.9MYoY · Pro
Exports
$708KYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
China and Germany together supply 93% of it.
customs district
destination
entry
rate provision · imports
0.8% enters free of duty; the effective duty rate is 32.27%.
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 |
|---|---|---|---|---|---|
| 2835295100 | Phosphates, NESOI | $11.4M | 33.05% | 91.92% | $3.8M |
| 2835293000 | Trisodium Phosphate | $274K | 22.64% | 97.31% | $62K |
| 2835291000 | Aluminum Phosphates | $246K | 6.77% | 67.68% | $17K |
| 2835292000 | Triammonium Phosphates | $4K | 36.51% | 100.00% | $1K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2835299050 | Phosphates, NESOI | $679K |
| 2835293000 | Trisodium Phosphate | $29K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Subheading 1 of 8 in heading 2835
Subheading 283529 · $11.9M of $46.9M
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