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Microbial Oil Fatty Acid Esters

Fatty acid esters from fermentation-derived microbial oils, chemically modified for biolubricants. HTS 1518.00.40.00 includes modified microbial fats explicitly.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China8%+17.5%25.5%
🇲🇽Mexico8%+10.0%18%
🇨🇦Canada8%+10.0%18%
🇩🇪Germany8%+10.0%18%
🇯🇵Japan8%+10.0%18%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3823.19.20.00Lower: 19.8% vs 25.5%

If primarily chemical synthesis, not fermentation-derived

Synthetic esters without biological fat origin classify as industrial chemicals.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Fermentation process validation proving microbial triglyceride origin

GMO status declaration for USDA biotech regulations

Biodegradability testing for green lubricant claims

Related Products under HTS 1518.00.40.00

Epoxidized Soybean Oil

Epoxidized soybean oil is produced by chemically modifying soybean oil through epoxidation, converting double bonds into epoxide groups for enhanced stability. It falls under HTS 1518.00.40.00 as a chemically modified vegetable oil fraction used primarily as a plasticizer and stabilizer in PVC production, not for human consumption.

Blown Linseed Oil

Blown linseed oil is linseed oil that has been oxidized by blowing air through it at elevated temperatures, increasing viscosity for use in paints and varnishes. Classified under HTS 1518.00.40.00 as an oxidized (chemically modified) vegetable oil unsuitable for food use.

Polymerized Castor Oil

Polymerized castor oil undergoes heat treatment in vacuum to form high-viscosity polymers used in lubricants and coatings. It qualifies for HTS 1518.00.40.00 as a heat-polymerized vegetable oil fraction, inedible for industrial applications.

Sulfurized Mineral-Lard Oil Blend

This inedible preparation combines sulfurized lard oil with mineral oil for extreme pressure metalworking lubricants. HTS 1518.00.40.00 covers such mixtures of chemically modified animal/vegetable fats not elsewhere specified.

Dehydrated Tallow Fatty Acids

Dehydrated tallow fatty acids result from water removal and distillation of animal tallow, used in soap noodles and rubber processing. Classified in HTS 1518.00.40.00 as chemically modified (dehydrated) animal fat fractions.

Oxidized Fish Oil

Oxidized fish oil is chemically modified by controlled oxidation to raise peroxide value for leather tanning and printing inks. HTS 1518.00.40.00 includes such inedible modified marine oils.