2936.90.01.10/Provitamin D2 (Ergosterol Irradiation Product)/Japan

Provitamin D2 (Ergosterol Irradiation Product) from Japan

Provitamin D2, derived from ergosterol through ultraviolet irradiation, is a sterol precursor that converts to vitamin D2 (ergocalciferol) upon further exposure to light. It falls under HTS 2936.90.0110 as a provitamin, chemically defined organic compound used primarily in vitamin production for nutritional supplements. This synthetic reproduction of a natural provitamin is essential for fortifying foods and pharmaceuticals.

Duty Rate — Japan → United States

15%

Rate breakdown

9903.04.6215%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter

9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter

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Import Tips

• Verify purity certificates and COA to confirm provitamin content meets Chapter 29 chemical definition requirements

• Ensure documentation specifies synthetic reproduction status to avoid misclassification as natural extracts

• Comply with FDA import alerts for vitamin precursors; provide stability data for solvent-containing forms