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HSChapter 15
U.S. imports of chemically modified animal, vegetable & microbial fats, oils & fractions (HS 151800) totaled $439.3M in July 2026, traded with 44 countries.
Importers of Chemically Modified Animal, Vegetable & Microbial Fats, Oils & Fractions paid $43.3M in duties in July 2026 — an effective duty rate of 12% on $375.7M in dutiable value, based on actual customs collections rather than the published tariff schedule. Chemically Modified Animal, Vegetable & Microbial Fats, Oils & Fractions imports of $439.3M in July 2026 ran 151% above the year-to-date monthly average of $175.0M.
Last updated: July 2026 dataChemical modification — including epoxidation, sulfonation, and other reactions that alter the molecular structure beyond simple hydrogenation — places these fats and oils in heading 151800, which also captures inedible mixtures and preparations not covered by heading 1516. The US schedule distinguishes inedible linseed (flaxseed) oil mixtures and preparations (1518002000) from other chemically modified animal and vegetable fats and oils (1518004000), with a general line (1518000000) also present. China and Malaysia are the leading suppliers, consistent with their roles as major processors of industrial oleochemicals. Many products under this heading serve industrial rather than food applications — including use as plasticizers, lubricants, and surface coatings — so they typically do not trigger FDA food admissibility review, though correct classification between edible and inedible variants remains critical.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
462 shipments/mo
Heading 1516 covers fats and oils that have been hydrogenated, interesterified, reesterified, or elaidinized — processes that modify the degree of saturation or fatty acid arrangement but do not fundamentally alter the glyceride structure. Heading 1518 captures products that have undergone more extensive chemical modification (such as epoxidation or sulfonation) or that are inedible mixtures and preparations not elsewhere classified. The specific chemical process applied is the determining factor.
Products from China may be subject to Section 301 tariffs depending on the specific 10-digit HTS classification. Importers should verify the applicable Section 301 list coverage for each line — 1518000000, 1518002000, or 1518004000 — at the time of entry, as Section 301 coverage and rates have been subject to ongoing review and modification. A licensed customs broker can confirm current applicability.
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Subheading 1 of 1 in heading 1518
Subheading 151800 · $439.3M of $439.3M
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 |
|---|---|---|---|---|---|
| 1518004000 | Animal & Vegetable Fats/Oils, Chemically Modified | $438.8M | 9.85% | 85.50% | $43.2M |
| 1518002000 | Inedible Mxtrs/Preps of Linseed/Flaxseed Oil NESOI | $485K | 14.80% | 100.00% | $72K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 1518000000 | Anml/Veg Fats & Oils Chem Modified; Inedbl Mxt Etc | $7.7M |
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
$439.3MYoY · Pro
Exports
$7.7MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
China and Australia together supply 59% of it.
customs district
destination
entry
rate provision · imports
14.5% enters free of duty; the effective duty rate is 9.86%.