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Cyclic Ethylene Carbonate

Ethylene carbonate is a five-membered cyclic carbonate ester with oxygen hetero-atoms, classified under HTS 2932.99.70.00 as aromatic oxygen heterocycle. Used in lithium battery electrolytes.

Import Duty Rates by Country of Origin

Origin Country	MFN Rate	Ch.99 Surcharges	Total Effective Rate
🇨🇳China	6.5%	+25.0%	31.5%
🇲🇽Mexico	6.5%	—	6.5%
🇨🇦Canada	6.5%	—	6.5%
🇩🇪Germany	6.5%	—	6.5%
🇯🇵Japan	6.5%	—	6.5%

Alternative Classifications

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

2920.90Lower: 13.7% vs 31.5%

If ester function predominates

Esters classified with parent acid-function compound per chapter note on esters.

3824.99Lower: 15% vs 31.5%

If electrolyte formulations

Battery electrolytes typically mixtures classified as preparations.

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Import Tips & Compliance

• Battery-grade requires >99.9% purity certification

• Hygroscopic; include moisture content analysis

• Verify not classified as carbonate ester under ester rules in chapter notes

Related Products under HTS 2932.99.70.00

Dioxolane

Dioxolane is a five-membered heterocyclic ring compound containing two oxygen hetero-atoms, classified under HTS 2932.99.70.00 as an aromatic heterocyclic compound with oxygen hetero-atoms only. It is commonly used as a solvent and intermediate in organic synthesis.

1,4-Dioxane

1,4-Dioxane is a six-membered heterocyclic ring with two oxygen atoms in 1,4-positions, aromatic heterocyclic compound under HTS 2932.99.70.00. Widely used as an industrial solvent despite regulatory concerns.

Tetrahydrofuran (THF)

Tetrahydrofuran is a five-membered heterocyclic ether with one oxygen hetero-atom, classified as aromatic heterocyclic under HTS 2932.99.70.00. Essential solvent in pharmaceutical and polymer manufacturing.

Morpholine

Morpholine is a six-membered heterocyclic compound with one oxygen and one nitrogen hetero-atom, but classified under oxygen-only heterocycles per HTS hierarchy 2932.99.70.00 when oxygen function predominates. Used in rubber vulcanization and corrosion inhibition.

Furan

Furan is a five-membered aromatic heterocyclic compound with one oxygen hetero-atom, specifically classified under HTS 2932.99.70.00. Used as solvent and in resin production.

2,5-Furandicarboxylic Acid

2,5-Furandicarboxylic acid (FDCA) is an aromatic heterocyclic oxygen compound with carboxylic acid groups, classified under HTS 2932.99.70.00. Bio-based alternative to terephthalic acid for PET production.