Ferroniobium Lumps Ultra-Low P/S from Mexico
Lump-form ferroniobium with maximum 0.01% phosphorus and sulfur, 0.25% silicon, containing 60-70% niobium for electric arc furnace steelmaking. This matches HTS 7202.93.4040 criteria for low-impurity ferroniobium ferroalloys. Used in automotive and aerospace steel alloys.
Duty Rate — Mexico → United States
5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Include spectrographic or wet chemistry analysis; visual inspection alone insufficient for purity claims
• Store in sealed containers; chapter notes deny allowances for rust/discoloration on steel products