Myo-Inositol Powder from China

Myo-inositol is the most common stereoisomer of inositol, a cyclic alcohol with six hydroxyl groups, classified under HTS 2906.13.10.00 as a pure inositol compound. It appears as a white crystalline powder used primarily as a nutritional supplement for metabolic health support.

Duty Rate — China → United States

37.5%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

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Import Tips

• Verify purity certificate (≥99%) to confirm classification as chemically defined inositol under Chapter 29, not mixtures

• Include COA and stereoisomer specification (myo-form) in documentation to avoid reclassification as Chapter 29 mixtures

• Ensure bulk packaging without additives; retail-packed supplements may shift to Chapter 30