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HSChapter 29
U.S. imports of phosphite esters, salts, and halogenated/sulfonated derivatives (other) (HS 292029) totaled $5.7M in May 2026, traded with 14 countries.
Importers of Phosphite Esters, Salts, and Halogenated/Sulfonated Derivatives (Other) paid $616K in duties in May 2026 — an effective duty rate of 11% on $5.6M in dutiable value, based on actual customs collections rather than the published tariff schedule. Phosphite Esters, Salts, and Halogenated/Sulfonated Derivatives (Other) imports of $5.7M in May 2026 ran 49% above the year-to-date monthly average of $3.8M.
Last updated: May 2026 dataResidual phosphite esters and their halogenated, sulfonated, or nitrated derivatives not covered by the named subheadings fall here, entering under tariff line 2920290000. Singapore leads US import supply for this catch-all grouping, followed by Italy, India, and the United Kingdom — a geographically diverse supplier base that reflects the wide variety of specialty phosphorus compounds traded under this heading. Correct classification requires distinguishing these compounds from phosphate esters (heading 2919) and from the specifically named phosphites in subheadings 292021–292023, making chemical identity documentation essential.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Heading 2919 covers phosphoric acid esters (phosphates), while subheading 292029 covers esters of phosphorous acid (phosphites). The distinction turns on the oxidation state of phosphorus and the acid from which the ester is derived. Importers should provide CAS numbers and structural documentation to support the correct heading assignment.
Each chemically distinct compound in a mixed shipment must be classified separately. Named phosphites (292021, 292022, 292023) take precedence under their specific subheadings, while unlisted derivatives default to 292029. Separate line items on the commercial invoice with individual CAS numbers and quantities facilitate correct entry.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| SINGAPORE | $4.9M | $31K | -$4.9M |
| SAUDI ARABIA | -- | $2.5M | +$2.5M |
| FRANCE | -- | $879K | +$879K |
| CANADA | $60K | $747K | +$687K |
| MEXICO | -- | $700K | +$700K |
Monthly import values over time
Supplier Network
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HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2920290000 | OTHER PHOPHITE ESTERS/HALGN/SULFN/NITRATD DRVTIVS | $3.2M | 11.73% | 100.00% | $380K |
OTHER PHOPHITE ESTERS/HALGN/SULFN/NITRATD DRVTIVS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2920290000 | OTHER PHOPHITE ESTERS/HALGN/SULFN/NITRATD DRVTIVS | $6.7M |
OTHER PHOPHITE ESTERS/HALGN/SULFN/NITRATD DRVTIVS
555.6K kg
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
COMP WITH PYRIMIDINE OR PIPERAZINE RING, NESOI
HS 293359
ANTIBIOTICS, NESOI
HS 294190
| State | Imports | Exports | Balance |
|---|---|---|---|
| Alabama | $1.8M | $3.0M | +$1.2M |
| Texas | $18K | $1.2M | +$1.2M |
| Pennsylvania | $949K | -- | -$949K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| ATLANTA, GA | -- | $3.0M | +$3.0M |
| NEWARK, NJ | $1.3M | $278K | -$1.0M |
| MOBILE, AL | $1.2M | -- | -$1.2M |