Glucono-Delta-Lactone from Japan
Glucono-delta-lactone (GDL) is the lactone form of gluconic acid, chemically defined under additional U.S. note 3 as an oxygen-function carboxylic derivative. Falls under HTS 2918.99.4300 for these specified cyclic forms. Used as sequestrant and leavening agent in food.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Include lactone purity assay to distinguish from free acid forms
• GRAS status documentation speeds FDA clearance for food use
• Avoid Chapter 29 exclusion by confirming not excluded cyclic ester per notes