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U.S. imports of organo-inorganic compounds (nes) (HS 293190) totaled $43.4M in July 2026, traded with 40 countries.
Importers of Organo-Inorganic Compounds (NES) paid $4.3M in duties in July 2026 — an effective duty rate of 11% on $39.7M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataChina, Germany, and India are the leading US import sources for this broad residual heading, which spans organosilicon compounds (2931909010), organotin stabilizers such as dibutyltin oxide (2931909021) and tetrabutyltin (2931909025), chlorovinylarsines (2931909030–2931909040), aromatic compounds used as drugs (2931902200) or pesticides (2931902600), and a range of boron, silicon, and phosphorus-based specialty chemicals. The chlorovinylarsine lines (lewisite precursors) are subject to CWC controls, while the organotin lines serve the PVC stabilizer and catalyst markets. China-origin imports across several lines in this heading are subject to Section 301 tariffs, making supplier diversification and tariff engineering a priority for procurement teams.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
804 shipments/mo
Section 301 tariff applicability is determined at the 10-digit HTS line level, and coverage within this heading is not uniform. Importers should verify each specific line — for example, organosilicon compounds (2931909010) versus organotin compounds (2931909021, 2931909025) — against the current Section 301 list, as some lines may be excluded or subject to different rates.
The distinction turns on the compound's primary commercial use: line 2931902200 covers aromatic organo-inorganic compounds used as pharmaceutical active ingredients or intermediates, while 2931902600 covers those used as pesticide active ingredients. A compound with dual potential uses is classified based on its principal use as presented at importation, supported by documentation such as a product specification sheet or safety data sheet.
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Subheading 1 of 17 in heading 2931
Subheading 293190 · $43.4M of $69.3M
ImportsExports
Imports
$43.4MYoY · Pro
Exports
$48.6MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
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.
Imports · July 2026
origin
China and Germany together supply 55% of it.
customs district
destination
entry
rate provision · imports
7.6% enters free of duty; the effective duty rate is 9.83%.