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Thallium Sealing Alloy Bars

Alloy bars containing thallium for glass-to-metal hermetic seals in vacuum tubes. HTS 8112.59.00.00 for 'other' thallium articles where thallium is base metal.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China4%+25.0%29%
🇲🇽Mexico4%—4%
🇨🇦Canada4%—4%
🇩🇪Germany4%—4%
🇯🇵Japan4%—4%

Alternative Classifications

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

7304.39.00Higher: 35% vs 29%

If formed into tubes

Thallium alloy tubes/pipes go to Chapter 73 iron/steel if applicable, but base metal rules.

8536.90.40.00Higher: 35% vs 29%

If in electrical connectors

Apparatus connectors with thallium shift to Chapter 85.

Not sure which classification is right?

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Import Tips & Compliance

• Document glass-metal sealing application to support classification

• Check for attached fittings qualifying Free (C) per subheading notes