U.S. imports of Esters of Other Inorganic Acids (Non-Phosphorus), NESOI (HS 292090) totaled $30.1M in August 2026, imported from 21 countries.
Importers of Esters of Other Inorganic Acids (Non-Phosphorus), NESOI paid $3.6M in duties in August 2026, an average duty rate of 12.09% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Esters of Other Inorganic Acids (Non-Phosphorus), NESOI imports of $30.1M in August 2026 ran 12% above the year-to-date monthly average of $26.8M.
Last updated: August 2026 dataEsters derived from inorganic acids other than phosphoric or phosphorous acid — including sulfuric, nitric, and other nonmetal inorganic acid esters — are captured here when not more specifically provided for elsewhere. The US schedule subdivides this residual heading into aromatic pesticide esters (2920901000), other aromatic esters (2920902000), non-aromatic esters of nonmetal inorganic acids (2920905100), and a general NESOI line (2920900002). China is the leading supplier, followed by France and South Korea, and Chinese-origin material may be subject to Section 301 tariffs depending on the specific compound.
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401 import shipments a month
The key distinctions are aromatic vs. non-aromatic structure and pesticide vs. non-pesticide end use. Aromatic esters used as pesticides go to 2920901000; other aromatic esters to 2920902000; non-aromatic esters of nonmetal inorganic acids to 2920905100; and remaining compounds to the general NESOI line 2920900002. A licensed customs broker or chemist familiar with HTS nomenclature should review the molecular structure and intended use.
Classification into the pesticide-designated line (2920901000) depends on whether the aromatic ester functions as a pesticidal active ingredient or is imported primarily for that application. General-purpose aromatic esters used as industrial intermediates, solvents, or non-pesticidal reagents would fall under 2920902000. End-use documentation and product labeling are key evidence in making this determination.
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 |
|---|---|---|---|---|---|
| 2920905150 | Non-Aromat Estrs of Inorg Acids of Nonmetals NESOI | $24.4M | 12.34% | 88.71% | $3.0M |
| 2920902000 | Other Aromat Estrs of Inorg Acids, Etc(Ex Pesticid) | $3.1M | 13.22% | 100.00% | $412K |
| 2920905110 | Ethylene Carbonate (1,3-Dioxolan-2-One) | $2.6M | 8.41% | 64.48% | $219K |
| 2920901000 | Other Aromat Estrs of Oth Inorg Acids(Pesticides) | $9K | 12.50% | 100.00% | $1K |
| 2920905100 | Non-Aromat Estrs of Inorg Acids of Nonmetals NESOI | — | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2920900002 | Esters of Other Inorganic Acids Etc, NESOI | $10.8M |
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 9 in heading 2920
Subheading 292090 · $30.1M of $36.5M
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Imports · August 2026
origin
China and South Korea together supply 51% of it. China pays 19.3% duty; South Korea 8.0%.
customs district
destination
entry
rate provision · imports
12.1% enters free of duty; duty collected equals 12.09% of imports for consumption.
ImportsExports
Imports
$30.1MYoY · free account
Exports
$10.8MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $272.7M of Esters of Other Inorganic Acids (Non-Phosphorus), NESOI and exported $121.9M.
Through August 2026. Source: U.S. Census Bureau.