Sodium Hydrosulfite Dye Vat Discharge Agent from Mexico
A chemical mixture containing sodium hydrosulfite (Na2S2O4) used in textile dyeing to discharge color from vat dyes, creating white patterns on indigo-dyed denim. This preparation falls under HTS 3824.99.32.00 as a mixture of hydrosulfite compounds with other inorganic substances for industrial textile processing.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Verify hydrosulfite content exceeds 50% to qualify under this subheading; obtain chemical analysis certificates
• Ensure SDS includes proper UN classification for hazardous goods transport
• Common pitfall: misclassification as pure sodium hydrosulfite (2831.10)