Cyclic Ethylene Carbonate from Mexico
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.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Battery-grade requires >99.9% purity certification
• Hygroscopic; include moisture content analysis
• Verify not classified as carbonate ester under ester rules in chapter notes