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3907 29Select TARIC subcode

Other

Available TARIC subcodes: 19
3907 291110

Poly(ethylene oxide) of a number average molecular weight (Mn) of 100 000 or more

Duty 0-6,5%VAT 23%
3907 291120

Bis[Methoxypoly[ethyleneglycol)]-maleimidopropionamide, chemically modified with lysine, of a number average molecular weight (Mn) of 40 000

Duty 0-6,5%VAT 23%
3907 291130

75 % or more of polyethyleneglycol modified butyl-2-cyano-3-(4-hydroxy-3-methoxyphenyl) acrylate, with an ethylene oxide chain length of not more than 30 (CAS RN 780763-40-8)-not more than 25 % of ethoxylated sorbitan trioleate (CAS RN 9005-70-3)

Duty 0-6,5%VAT 23%
3907 291140

Ethoxylated glycerol (CAS RN 31694-55-0) with a hydroxyl number of 541 or more but not more than 587 (ASTM 4274)

Duty 0-6,5%VAT 23%
3907 291190

Other

Duty 0-6,5%VAT 23%
3907 292035

5 % or more but not more than 15 % of a copolymer of glycerol, propylene oxide and ethylene oxide (CAS RN 9082-00-2), and - 85 % or more but not more than 95 % of a copolymer of sucrose, propylene oxide and ethylene oxide (CAS RN 26301-10-0)

Duty 0-6,5%VAT 23%
3907 292040

Copolymer of tetrahydrofuran and tetrahydro-3-methylfuran (CAS RN 38640-26-5) with a number average molecular weight (Mn) of 900 or more but not more than 3 600

Duty 0-6,5%VAT 23%
3907 292045

4-(1,1,3,3-tetramethylbutyl)phenol, ethoxylated

Duty 0-6,5%VAT 23%
3907 292050

Poly(p-phenylene oxide) in the form of powder - with a glasstransitiontemperature of 210 °C or more, - with a weight average molecular weight (Mw) of 35 000 or ore but not more than 80 000 - with an inherent viscosity of 0,2 or more but not more than 0,6 dl/gram

Duty 0-6,5%VAT 23%
3907 292055

4-Nonylphenol, branched and linear, ethoxylated

Duty 0-6,5%VAT 23%
3907 292090

Other

Duty 0-6,5%VAT 23%
3907 299920

2,3-Bis(methylpolyoxyethylene-oxy)-1-[(3-maleimido-1-oxopropyl)amino]propyloxy propane (CAS RN 697278-30-1) with a number average molecular weight (Mn) of at least 20 kDa whether or not modified with a chemical entity enabling a linkage between the PEG and a protein or a peptide

Duty 0-6,5%VAT 23%
3907 299930

Homopolymer of 1-chloro-2,3-epoxypropane (epichlorohydrin)

Duty 0-6,5%VAT 23%
3907 299945

Copolymer of ethylene oxide and propylene oxide, having aminopropyl and methoxy end-groups

Duty 0-6,5%VAT 23%
3907 299950

Vinyl-silyl terminated perfluoropolyether polymer or an assortment of two components consisting of the same type of vinyl-silyl terminated perfluoropolyether polymer as the main ingredient

Duty 0-6,5%VAT 23%
3907 299955

Succinimidyl ester of methoxy poly(ethylene glycol)propionic acid, of a number average molecular weight (Mn) of 5 000

Duty 0-6,5%VAT 23%
3907 299960

Polytetramethylene oxide di-p-aminobenzoate

Duty 0-6,5%VAT 23%
3907 299970

Poly(oxy-1,4-phenyleneoxy-1,4-phenylenecarbonyl-1,4-phenylene) (CAS RN 29658-26-2) containing by weight not more than 35 % of additives

Duty 0-6,5%VAT 23%
3907 299990

Other

Duty 0-6,5%VAT 23%
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Classification scope and products

CN code 390729 covers polyethers in primary forms other than polyethylene glycol (PEG). This residual heading includes polytetrahydrofuran (PTHF, polyoxybutylene glycol), polypropylene glycol (PPG), polyphenylene ethers (PPE/PPO), polysulfone (PSU), polyethersulfone (PES) and other technical polyethers. PTHF is a key intermediate for synthesising polyurethane elastomers and spandex. PPG is used in polyurethane foam production. PPE/PPO are engineering polymers with excellent dimensional stability and thermal resistance. Products come as granules, powder, liquids or blocks.

Regulatory requirements

Polyethers imported under code 390729 are subject to REACH regarding monomers and additive substances. Monomers for individual polyethers have varying CLP classifications – e.g. propylene oxide (for PPG) is carcinogenic Category 1B. Engineering polyethers PPE and PSU used in electrical equipment are subject to the RoHS Directive. Polyethers for food contact must comply with Regulation (EU) No 10/2011. PTHF for medical applications is subject to the Medical Devices Regulation. The importer should have documentation identifying the polyether type, molecular weight and residual monomer content.

Trade and customs procedures

When importing polyethers under CN code 390729, customs documentation should include identification of the polyether type, molecular weight, commercial form and intended use. Duty rates should be verified in the TARIC system. The polyether market is diversified – PTHF (BASF, Invista), PPG (Dow, BASF, Covestro), PPE (SABIC, Mitsubishi) and PSU (Solvay, BASF). Liquid polyethers are transported in tanks or drums, solid forms on pallets. Preferential duty rates may be available under FTA agreements.

Frequently asked questions

Which polyethers are classified under code 390729?
Code 390729 covers all polyethers in primary forms other than PEG (code 390721). This includes PTHF (polytetrahydrofuran), PPG (polypropylene glycol), PPE/PPO (polyphenylene ethers), PSU (polysulfone), PES (polyethersulfone) and other polyethers. Identification requires technical documentation.
Is PPG the same as PPE?
No. PPG is polypropylene glycol – an aliphatic polyether used in polyurethane foam and brake fluid production. PPE (polyphenylene ether, Noryl) is an aromatic polyether – an engineering polymer with high thermal resistance. Both are classified under code 390729 but are entirely different polymers with different applications.
Does PTHF for spandex production have special requirements?
PTHF (polytetrahydrofuran) for spandex production is classified under code 390729. No special import requirements apply beyond standard REACH regulations. The technical specification should indicate the PTHF molecular weight as it affects the final elastomer properties.