Glucono-Delta-Lactone from Canada
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 — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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