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Hexamethylenetetramine Flake Form

Hexamethylenetetramine produced in translucent flake form for easier handling in resin manufacturing. Remains under HTS 2933.69.5000 as physical form doesn't change its chemical classification as a triazine compound.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
πŸ‡¨πŸ‡³China6.3%+37.5%43.8%
πŸ‡²πŸ‡½Mexico6.3%+10.0%16.3%
πŸ‡¨πŸ‡¦Canada6.3%+10.0%16.3%
πŸ‡©πŸ‡ͺGermanyFree+10.0%10%
πŸ‡―πŸ‡΅JapanFree+12.5%12.5%

Alternative Classifications

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

2921.30Lower: 16.2% vs 43.8%

If containing >2% urea impurities from manufacturing

Urea derivatives classified in 2924; Chapter 29 excludes urea per note (f).

2837.20Lower: 14.2% vs 43.8%

If cyanuric acid salts predominate

Inorganic salts of triazine acids go to inorganic chemical chapters.

Not sure which classification is right?

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

Import Tips & Compliance

β€’ Specify flake size (typically 8-25mm) in commercial invoice for valuation

β€’ Anti-caking agent <0.2% allowed per Chapter 29 note (f); declare stabilizer composition

β€’ Monitor bulk density (0.7-0.75 g/cmΒ³) for container loading calculations

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