Isinglass Fish Bladder Glue from Mexico
Traditional isinglass derived from sturgeon swim bladders, used as a clarifying agent in wine and beer production. It qualifies under HTS 3503.00.55.50 as an animal-origin glue, explicitly named in the heading and not covered by Chapter 21 exclusions.
Duty Rate — Mexico → United States
13.8%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Obtain CITES permits if from protected fish species like sturgeon to prevent wildlife trade violations
• Label as 'isinglass' distinctly from synthetic clarifiers to maintain classification integrity