HS Code for HFC-143a

HFC-143a, chemically known as 1,1,1-trifluoroethane, is classified under HS code 2903.44. This classification is determined by the Harmonized System's hierarchical structure for organic chemicals, specifically within Chapter 29, which covers organic chemicals, and heading 2903, which is dedicated to halogenated derivatives of acyclic hydrocarbons. Following the 2022 HS nomenclature updates, specific subheadings were established to monitor hydrofluorocarbons (HFCs) regulated under the Kigali Amendment to the Montreal Protocol. Subheading 2903.44 is a specific category for saturated fluorinated derivatives that explicitly names pentafluoroethane (HFC-125), 1,1,1-trifluoroethane (HFC-143a), and 1,1,2-trifluoroethane (HFC-143). The classification logic is based on the chemical being a saturated compound, meaning it contains only single bonds between carbon atoms, and it is an acyclic hydrocarbon derivative where hydrogen atoms are substituted by fluorine. As a pure, single chemically defined compound, it must be classified in Chapter 29. If the substance were part of a refrigerant blend, such as R-404A or R-507A, it would instead be classified under heading 3824. The precision of 2903.44 ensures that customs authorities can track the import and export volumes of this specific high-global-warming-potential gas for environmental compliance.

Products Included

• 1,1,1-trifluoroethane (HFC-143a)
• Pentafluoroethane (HFC-125)
• 1,1,2-trifluoroethane (HFC-143)
• Pure HFC-143a gas used as a refrigerant component
• Pure HFC-143a used as a propellant

Common Misclassification

HFC-143a is frequently misclassified under HS code 2903.49, which is a residual category for other saturated fluorinated derivatives. However, because HFC-143a is explicitly named in the 2903.44 subheading, the residual code is incorrect. Another common error is classifying it under 3824.78, which covers mixtures containing HFCs. While HFC-143a is a major component of refrigerant blends like R-404A, the pure chemical must remain in Chapter 29. Additionally, it should not be confused with unsaturated derivatives found in 2903.51 or 2903.59.

FAQ

What is the HS code for HFC-143a?

The HS code for pure HFC-143a (1,1,1-trifluoroethane) is 2903.44.

Is HFC-143a regulated under the Montreal Protocol?

Yes, HFC-143a is one of the hydrofluorocarbons controlled under the Kigali Amendment to the Montreal Protocol due to its high global warming potential, requiring specific import and export licenses.