Argol Crystals from Mexico
Argol crystals are the natural potassium hydrogen tartrate deposits formed on wine barrel walls during aging. This product is explicitly covered by HTS 2307.00.00.00 as argol from wine lees. Primarily exported for tartaric acid production.
Duty Rate — Mexico → United States
10%
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 chemical analysis confirming bitartrate composition to prevent reclassification as mineral deposits
• Use proper packaging to prevent contamination during shipping, maintaining food-contact eligibility
• Monitor EU origin rules, as major suppliers require specific phytosanitary certificates