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Cesium Metal Ampoules

Cesium metal sealed in glass ampoules, alkali metal for atomic clocks and catalysts. HTS 2805.19.90.90 classification for other alkali metals. Liquid at room temperature, highly photo-reactive.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.5%+25.0%30.5%
🇲🇽Mexico5.5%—5.5%
🇨🇦Canada5.5%—5.5%
🇩🇪Germany5.5%—5.5%
🇯🇵Japan5.5%—5.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2853Lower: 15.3% vs 30.5%

If as phosphide

Phosphides including alkali types under 2853 per note.

Not sure which classification is right?

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

Import Tips & Compliance

• ITAR export controls may apply; dual-use declaration

• Temperature-controlled shipping <20°C

• Verify no optical element use (would be 9001)