New

Ask Wove anything about tariffs.

Try Tariff Assistant

HFC-125 Semiconductor Processing Gas

Ultra-high purity 1,1,1,2,2-pentafluoroethane (HFC-125) for semiconductor plasma etching is a pure organic compound, specifically named under tariff item 2903.44.00. It meets Chapter 29 Note 1(a) as a separate chemically defined compound.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
🇨🇳ChinaFree—Free
🇲🇽MexicoFree—Free
🇺🇸United StatesFree—Free
🇩🇪GermanyFree—Free
🇯🇵JapanFree—Free

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Provide a certificate of analysis showing ultra-high purity (e.g

• 99.9999%)

• Ensure the product is not put up for retail sale

• Check if the product is subject to any export or import controls for semiconductor applications

Related Products under Tariff item 2903.44.00

1,1,1,2,2-Pentafluoroethane (HFC-125) Pure Gas

Pure 1,1,1,2,2-pentafluoroethane (HFC-125) is a saturated fluorinated derivative of acyclic hydrocarbons, supplied as a high-purity gas. It is a separate chemically defined compound under Chapter 29 Note 1(a) and is specifically named in tariff item 2903.44.00.

1,1,1-Trifluoroethane (HFC-143a) Pure Gas Cylinder

1,1,1-Trifluoroethane (HFC-143a) is a saturated fluorinated derivative of acyclic hydrocarbons, supplied as a pure gas in high-pressure cylinders. It is a separate chemically defined organic compound, meeting the criteria of Chapter 29 Note 1(a), and is specifically named under tariff item 2903.44.00.

1,1,2-Trifluoroethane (HFC-143) Propellant Grade

1,1,2-Trifluoroethane (HFC-143) is a saturated fluorinated acyclic hydrocarbon, supplied in propellant grade for aerosol pharmaceutical delivery systems. It is a separate chemically defined compound, meeting Chapter 29 Note 1(a), and is explicitly listed under tariff item 2903.44.00.

1,1,2-Trifluoroethane (HFC-143) Research Chemical

1,1,2-Trifluoroethane (HFC-143) is a specific isomer listed under tariff item 2903.44.00, supplied in lecture bottles for laboratory synthesis. As a separate chemically defined organic compound, it qualifies under Chapter 29 Note 1(a) and is not excluded by any chapter note.

HFC-125 Fire Extinguishing Gas

1,1,1,2,2-Pentafluoroethane (HFC-125) for fire suppression systems is a pure fluorinated hydrocarbon, specifically named under tariff item 2903.44.00. It is a separate chemically defined compound under Chapter 29 Note 1(a), and its use in fire suppression does not affect classification.

HFC-125 Medical Propellant Grade

Pharmaceutical-grade 1,1,1,2,2-pentafluoroethane (HFC-125) for metered dose inhalers is a pure compound, specifically named under tariff item 2903.44.00. It meets Chapter 29 Note 1(a) as a separate chemically defined organic compound.