Glucono-Delta-Lactone (GDL) from China
Glucono-delta-lactone is a six-membered lactone ring derived from gluconic acid, classified as other lactones under HTS 2932.20.50.50. Widely used as a slow-release acidulant in food processing.
Duty Rate — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• GRAS affirmation letter and FDA prior notice required for food use imports
• Specify particle size and purity grade; food vs technical grades may have different requirements
• Hydrolysis stability data prevents reclassification as gluconic acid salts