Subheading 2903.43 · Section VI
Saturated fluorinated derivatives of acyclic hydrocarbons; fluoromethane (HFC-41), 1,2-difluoroethane (HFC-152) and 1,1-difluoroethane (HFC-152a)
Source: Harmonized System 2022 edition (World Customs Organization), from the UN Comtrade classification list.