Methyldiethanolamine (MDEA) from China
MDEA is an alkanolamine (CH3N(CH2CH2OH)2) used primarily in natural gas sweetening, fitting HTS 2922.19.96.90 as an oxygen-function amino-compound with ether-like properties but classified as amino-alcohol. Chemically defined per Chapter notes.
Duty Rate — China → United States
112.5%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide GC-MS analysis confirming identity and purity levels
• Declare as pure chemical, not formulated scrubber solution
• Comply with pipeline industry specifications if for energy sector end-use