Glycerol Ester of Wood Rosin (Food Grade)
Glycerol ester of wood rosin is a pale, tack-free resin approved as a food additive (E445) for beverages and confections. It functions as an emulsifier in citrus oil beverages and as a masticatory substance in chewing gum. Classified under HTS 3806.30.00.00 due to its derivation from wood rosin esterified with glycerol.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 6.5% | +35.0% | 41.5% |
| 🇲🇽Mexico | 6.5% | +10.0% | 16.5% |
| 🇨🇦Canada | 6.5% | +10.0% | 16.5% |
| 🇩🇪Germany | 6.5% | +10.0% | 16.5% |
| 🇯🇵Japan | 6.5% | +10.0% | 16.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If extracted as natural vegetable gum rather than chemically esterified
Natural gums without synthetic esterification fall under vegetable saps and extracts in Chapter 13.
If when sold as food preparation additive without rosin declaration
Mixtures for food/brewery use may classify under industrial fatty acid derivatives if not pure ester gums.
If for lower molecular weight esters resembling saturated acyclic alcohols
Smaller ester compounds may align with organic chemical derivatives outside rosin chapter.
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Import Tips & Compliance
• Obtain FDA prior notice and GRAS affirmation for food contact; USP/FCC specs required for entry
• Test for heavy metals and peroxide value; common rejection cause is off-spec color (Gardner scale)
• Avoid classifying as flavoring under 2106; must prove primary rosin ester function
Related Products under HTS 3806.30.00.00
High-Softening Point Penta Rosin Ester
High-softening point pentaerythritol rosin ester (130-110°C ring & ball) provides heat resistance in tire cord adhesives and tape formulations. Derived from disproportionated tall oil rosin for color stability. Classified as ester gum under HTS 3806.30.00.00.
Liquid Methyl Ester Gum for Printing Inks
Liquid methyl ester gum serves as a solvent-free plasticizer in lithographic and gravure printing inks. Its low viscosity enables high pigment loading without tack buildup. HTS 3806.30.00.00 includes these rosin-derived liquid ester gums.
Chewing Gum Base Ester Gum
Ester gum from glycerol-rosin esters provides chew elasticity and flavor release in gum base formulations. Water-insoluble nature maintains gum cohesion during mastication. Falls under HTS 3806.30.00.00 as purified rosin ester derivative.
Pentaerythritol Ester of Tall Oil Rosin
Pentaerythritol ester of tall oil rosin is a high-viscosity synthetic resin produced by esterifying tall oil rosin acids with pentaerythritol. It is widely used as a tackifier in adhesives, hot-melt glues, and pressure-sensitive tapes. This product falls under HTS 3806.30.00.00 as it is specifically classified as an ester gum derived from rosin acids.
Methyl Ester of Rosin (Methyl Rosinate)
Methyl ester of rosin, also known as methyl rosinate, is a low-viscosity liquid resin formed by esterifying rosin acids with methanol. It serves as a plasticizer in inks, coatings, and synthetic rubber compounds. HTS 3806.30.00.00 applies as it is a direct derivative of rosin acids via esterification.
Triethylene Glycol Ester of Rosin
Triethylene glycol ester of rosin is a soft, tacky resin used in hot-melt adhesives and bookbinding glues. Its polyol esterification provides flexibility and low melt viscosity. Falls under HTS 3806.30.00.00 as an ester gum from rosin and resin acids.