U.S. exports of Methylphosphonic Dichloride (HS 293151) totaled $125K in August 2026.
Importers of Methylphosphonic Dichloride paid $13K in duties in August 2026, an average duty rate of 16.20% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Methylphosphonic Dichloride imports of $83K in August 2026 ran 197% above the year-to-date monthly average of $28K.
Last updated: August 2026 dataMethylphosphonic dichloride is a halogenated organophosphorous intermediate classified under a single 10-digit line (2931510000) and is a recognized Chemical Weapons Convention Schedule 2 precursor, placing it under strict international monitoring and US import controls. China is the sole recorded US supplier, creating significant concentration risk for buyers who depend on this intermediate for downstream synthesis. Importers should confirm Commerce Department and State Department licensing requirements before arranging shipment, as CWC-related controls can affect admissibility regardless of declared end use.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1 import shipments a month
As a CWC Schedule 2 chemical, methylphosphonic dichloride is subject to Commerce Department Export Administration Regulations (EAR) controls on import and export, and transactions may require end-use certification. Importers should consult a licensed customs broker and verify current BIS requirements before shipment.
Methylphosphonic dichloride serves as a key intermediate in the synthesis of flame retardants, specialty phosphonate esters, and certain agrochemical compounds. Its reactivity with alcohols and amines makes it a versatile building block, though its dual-use nature means buyers typically must document legitimate end-use applications.
Subheading 5 of 17 in heading 2931
Subheading 293151 · $125K of $109.8M
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ImportsExports
Imports
$83KYoY · free account
Exports
$125KYoY · free account
Low of 4 reported months · imports
Low · free accountFewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026 · imports 4 of 12 months reported, exports 1 of 12 months reported. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2931510000 | Methylphosphonic Dichloride | $83K | 16.20% | 100.00% | $13K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2931510000 | Methylphosphonic Dichloride | $125K |
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.
Exports · August 2026
destination
customs district
origin
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rate provision · imports
duty collected equals 16.20% of imports for consumption.