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2931.90.90.10/Hexamethyldisilazane/Mexico

Hexamethyldisilazane from Mexico

Hexamethyldisilazane ((CH3)3Si)2NH is an organo-silicon compound used as a surface modification agent and silylating agent in microelectronics. It qualifies for HTS 2931.90.90.10 as an organo-inorganic compound containing silicon directly linked to carbon, within Chapter 29's scope.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Submit technical data sheets confirming >98% purity to distinguish from mixtures under Chapter 38

• Verify end-use declaration; electronics imports often need additional FCC/ITAR documentation

Hexamethyldisilazane from Mexico — Import Duty Rate | HTS 2931.90.90.10