2519.90.50.00/Technical Grade Magnesium Oxide for Fertilizers/Japan

Technical Grade Magnesium Oxide for Fertilizers from Japan

Technical magnesia powder used as a magnesium supplement in agricultural fertilizers. It qualifies under HTS 2519.90.50.00 as other magnesium oxide from natural sources, not chemically modified beyond calcination.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• Include soil amendment/fertilizer end-use statements, but classify based on material form, not use

• Document calcination process to prove it's 'other magnesium oxide' vs. fused types

• Avoid blending with NPK; pure magnesia imports stay in 2519—mixtures may shift to Chapter 31