Fluoromethane (HFC-41) Industrial Gas from Japan
Fluoromethane, or HFC-41, is a specialty gas used in plasma etching processes for semiconductor manufacturing and as a component in some foam blowing agents. It is precisely listed under HTS 2903.43.10.00 as a fluorinated derivative of acyclic hydrocarbons. This compound's high purity is essential for high-tech applications.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Require semiconductor-grade certificates of analysis; comply with NFPA 45 lab safety standards for import
• Pitfall: Incorrect valve fittings can cause customs holds on high-pressure cylinders