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HTS heading 2912: Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde

Heading 2912 of the US Harmonized Tariff Schedule covers Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde. Below: every rated tariff line in it with its general duty rate, Section 301 China status and exclusions, then a page per line with a free duty calculator.

Official USITC HTS, 2026HTSRev22 · check on hts.usitc.gov

Heading 2912 at a glance

Goods named in this heading (official line texts): Methanal (Formaldehyde), Ethanal (Acetaldehyde), Citral, Butanal (Butyraldehyde, normal isomer), Glyoxal, Isobutanal, Benzaldehyde, Phenylacetaldehyde, 3,4-Dimethylbenzaldehyde; Paraldehyde, USP grade; andp-Tolualdehyde, Vanillin (4-Hydroxy-3-methoxybenzaldehyde), Ethylvanillin (3-Ethoxy-4-hydroxybenzaldehyde), p-Anisaldehyde, p-Hydroxybenzaldehyde, Hydroxycitronellal, Metaldehyde, Paraformald….

Subheadings (6-digit)

All tariff lines in heading 2912

LineDescriptionGeneralSection 301 (China)Exclusions
2912.11.00Acyclic aldehydes without other oxygen function: Methanal (Formaldehyde)2.8%List 3 +25%
2912.12.00Acyclic aldehydes without other oxygen function: Ethanal (Acetaldehyde)5.5%List 3 +25%
2912.19.10Odoriferous or flavoring compounds: Citral5.5%List 3 +25%
2912.19.20Odoriferous or flavoring compounds: Other4.8%List 3 +25%
2912.19.25Butanal (Butyraldehyde, normal isomer)5.5%List 3 +25%
2912.19.30Other: Glyoxal3.7%List 3 +25%
2912.19.40Other: Isobutanal5.5%List 4B (suspended, no extra duty)
2912.19.50Other: Other5.5%List 3 +25%
2912.21.00Cyclic aldehydes without other oxygen function: Benzaldehyde5.5%List 3 +25%
2912.29.10Other: Phenylacetaldehyde5.5%List 3 +25%
2912.29.303,4-Dimethylbenzaldehyde; Paraldehyde, USP grade; andp-TolualdehydeFreeList 3 +25%
2912.29.60Other: Other5.5%List 3 +25%
2912.41.00Vanillin (4-Hydroxy-3-methoxybenzaldehyde)5.5%List 4A +7.5%
2912.42.00Ethylvanillin (3-Ethoxy-4-hydroxybenzaldehyde)5.5%List 3 +25%
2912.49.10Aromatic: p-Anisaldehyde5.5%List 3 +25%
2912.49.15Aromatic: p-HydroxybenzaldehydeFreeList 3 +25%
2912.49.26Aromatic: Other5.5%List 3 +25%
2912.49.55Aldehyde-alcohols: Hydroxycitronellal4.8%List 3 +25%
2912.49.60Aldehyde-alcohols: Other5.1%List 3 +25%
2912.49.90Other: Other4.8%List 3 +25%
2912.50.10Cyclic polymers of aldehydes: MetaldehydeFreeList 3 +25%
2912.50.50Cyclic polymers of aldehydes: Other5.5%List 3 +25%
2912.60.00Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehyd…: Paraformald…5.1%List 3 +25%

All of chapter 29 · Chapter 29 rate summary · HTS lookup

General information from the official US Harmonized Tariff Schedule (USITC) and USTR Section 301 notices in HTS Chapter 99; not legal or customs advice. Classification is decided by CBP; confirm with a licensed customs broker or a CBP binding ruling.

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