Mexican Yam Diosgenin Concentrate from Mexico
Diosgenin concentrate from Dioscorea villosa (wild yam) tubers, serving as natural precursor for progesterone synthesis while qualifying as progestin intermediate. Obtained indirectly from vegetable materials through solvent extraction. HTS 2937.23.1050 includes such natural steroid precursors used hormonally.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Provide phytosanitary certificates for yam tuber imports verifying disease-free status
• Declare diosgenin content percentage with NMR validation of natural stereochemistry
• Avoid conversion claims that suggest synthetic processing beyond natural extraction