Sodium Formaldehyde Sulfoxylate from China
Sodium formaldehyde sulfoxylate (NaHSO2·CH2O) is a sulfoxylate reducing agent used in polymerizations and dye discharge printing. Classified in HTS 2831.90.00.00 as 'other' sulfoxylates when meeting inorganic compound criteria despite formaldehyde association. Technical grade powder or dihydrate form common.
Duty Rate — China → United States
43%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Distinguish from Rongalite C (stabilized form) via molecular analysis for correct subheading
• Store refrigerated; import with validity date <6 months from manufacture
• REACH registration required for EU re-export; provide exposure scenarios