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Harmonized Tariff Schedule (2025 HTS Revision 18 (08/06/2025))

Heading	Duty(general)	Article Description	Compare Code
2929.90.50.30	6.5%	N-(Dialkyl (≤C₁₀, incl. cycloalkyl) amino))alkylidene (H or ≤C₁₀, incl. cycloalkyl) phosphonamidic fluorides and corresponding alkylated or protonated salts	--
2929.90.50.40	6.5%	O-Alkyl (H or ≤C₁₀, incl. cycloalkyl) N-(dialkyl (≤C₁₀, incl. cycloalkyl) amino))alkylidene (H or ≤C₁₀, incl. cycloalkyl) phosphoramidofluoridates and corresponding alkylated or protonated salts	vs-2929905030
2929.90.50.95	6.5%	Other X. ORGANO-INORGANIC COMPOUNDS, HETEROCYCLIC COMPOUNDS, NUCLEIC ACIDS AND THEIR SALTS, AND SULFONAMIDES	vs-2929905040