Melamine
Heterocyclic compounds with nitrogen hetero-atom(s) only. > Compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure: > Melamine > Melamine
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2933.61
Industrial Grade Melamine Crystal
Industrial grade melamine crystal is a high-purity heterocyclic organic compound with an unfused triazine ring structure. It is a separate chemically defined compound, qualifying under Chapter 29 Note 1(a), and is used primarily in the production of melamine-formaldehyde resins for laminates and coatings.
2933.61.00Melamine (2,4,6-Triamino-1,3,5-triazine)
Melamine (2,4,6-triamino-1,3,5-triazine) is a white crystalline powder that is a separate chemically defined heterocyclic compound. It contains an unfused triazine ring with nitrogen hetero-atoms, satisfying Chapter 29 Note 1(a) and the specific description of tariff item 2933.61.00.
2933.61.00Melamine for Flame Retardant Production
Melamine for flame retardant production is a pure triazine compound used as a precursor in nitrogen-based flame retardants for plastics. It is a separate chemically defined organic compound with an unfused triazine ring, meeting Chapter 29 Note 1(a) and not excluded by Chapter 29 Note 2.
2933.61.00Melamine with Stabilizer for Transport
Melamine with stabilizer for transport is melamine powder with an added stabilizer, permitted under Chapter 29 Note 1(f) for preservation or transport. The primary compound remains a separate chemically defined triazine, and the stabilizer does not render it suitable for a specific use, so it stays in tariff item 2933.61.00.
2933.61.00Pharmaceutical Grade Melamine USP
Pharmaceutical grade melamine USP is an ultra-pure form of melamine meeting United States Pharmacopeia standards, used in pharmaceutical intermediates and research. As a separate chemically defined compound with an unfused triazine ring, it falls under tariff item 2933.61.00, and Chapter 29 Note 2(e) excludes only immunological products of heading 30.02, not this compound.
2933.61.00Technical Grade Melamine 99.8% Purity
Technical grade melamine with 99.8% purity is a separate chemically defined organic compound with an unfused triazine ring, used for industrial resin synthesis. It meets the criteria of Chapter 29 Note 1(a) and is not excluded by Chapter 29 Note 2, making it classifiable under tariff item 2933.61.00.