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U.S. imports of polyphenols, not elsewhere specified or included (HS 290729) totaled $6.6M in July 2026, traded with 21 countries.
Importers of Polyphenols, Not Elsewhere Specified or Included paid $529K in duties in July 2026 — an effective duty rate of 8.6% on $6.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. Polyphenols, Not Elsewhere Specified or Included imports of $6.6M in July 2026 ran 23% below the year-to-date monthly average of $8.7M.
Last updated: July 2026 dataTert-butylhydroquinone (TBHQ, 2907292500), 4,4'-biphenol (2907291500), pyrogallic acid (2907291000), and phenol-alcohols (2907290500) are among the commercially distinct compounds grouped in this residual polyphenol heading, each serving different industrial niches from food-grade antioxidants to liquid-crystal polymer monomers. France and India are the leading suppliers to the US market. The heading's breadth means that classification at the 10-digit level requires careful matching of chemical identity to the enumerated lines before defaulting to the NESOI basket (2907299000). Goods of Chinese origin are subject to Section 301 tariffs.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
96 shipments/mo
TBHQ has its own dedicated 10-digit line, 2907292500, and should not be entered under the NESOI basket 2907299000. Importers should confirm the chemical identity with a certificate of analysis and cite the specific line on the entry to avoid classification disputes.
4,4'-Biphenol is a monomer used in the production of high-performance liquid-crystal polymers (LCPs) and specialty epoxy resins for electronics and aerospace applications. Its relatively niche demand profile means supply is concentrated among a small number of specialty chemical producers, making lead-time management a key procurement consideration.
HSChapter 29
Subheading 1 of 9 in heading 2907
Subheading 290729 · $6.6M of $17.2M
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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 |
|---|---|---|---|---|---|
| 2907299000 | Polyphenols, NESOI | $6.0M | 7.61% | 91.86% | $459K |
| 2907291000 | Pyrogallic Acid | $245K | 11.30% | 100.00% | $28K |
| 2907292500 | Tert-Butylhydroquinone | $195K | 13.45% | 100.00% | $26K |
| 2907291500 | 4,4'-Biphenol | $161K | 10.00% | 100.00% | $16K |
| 2907290500 | Phenol-Alcohols | $0 | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2907299000 | Polyphenols, NESOI | $1.0M |
| 2907292500 | Tert-Butylhydroquinone | $490K |
| 2907290500 | Phenol-Alcohols | $164K |
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.
ImportsExports
Imports
$6.6MYoY · Pro
Exports
$1.7MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
India and Germany together supply 44% of it.
customs district
destination
entry
rate provision · imports
7.5% enters free of duty; the effective duty rate is 7.98%.