Nickel Sulfate for Lithium-Ion Battery Cathodes from Mexico
Battery-grade nickel sulfate (NiSO4·6H2O >99.5% pure) serves as precursor for NMC cathode materials in EV batteries. Under HTS 2833.24.00.00 as chemically defined nickel sulfate.
Duty Rate — Mexico → United States
3.2%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Provide battery precursor end-use statement for potential duty exemptions under clean energy programs
• Ultra-high purity requires third-party assay certificates to prevent 3824 downgrade
• Avoid classifying NMC precursors as mixtures (3824) by confirming single-compound status