N-Methyldiethanolamine (MDEA) from China
MDEA is a tertiary amino-alcohol used primarily in natural gas sweetening to remove H2S and CO2, classified in HTS 2922.19.96 as other amino-alcohols. Its chemically defined structure fits Chapter 29's scope for oxygen-function compounds.
Duty Rate — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include gas absorption specifications but classify based on chemical structure, not end use
• Certify amine content and water dilution meets transport-only criteria per chapter notes
• Monitor Section 301 tariffs if sourced from China; consider diversification