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Casein Modified Powder

Chemically hardened casein protein, derived from milk, in primary powder form for industrial coatings and adhesives. Classified under HTS 3913.90.5000 as hardened proteins, a modified natural polymer.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+25.0%31.5%
🇲🇽Mexico6.5%—6.5%
🇨🇦Canada6.5%—6.5%
🇩🇪Germany6.5%—6.5%
🇯🇵Japan6.5%—6.5%

Alternative Classifications

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

3501.90Lower: 16% vs 31.5%

If unmodified casein for food use

Unhardened caseins remain as milk proteins in Chapter 35, not polymers.

3920.99Lower: 15.8% vs 31.5%

If shaped into plates or sheets

Non-primary forms like plates shift to heading 3920 for other plastic plates.

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Import Tips & Compliance

• Document hardening process (e.g

• formaldehyde treatment) to justify classification; ensure dairy origin certification for USDA compliance; avoid food-grade labeling unless qualified

Related Products under HTS 3913.90.50.00

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Hydroxypropyl Methylcellulose Granules

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