2932.20.45.00/Ascorbic Acid Lactone/Japan

Ascorbic Acid Lactone from Japan

Ascorbic acid (Vitamin C) contains a five-membered lactone ring with enediol functionality, classified as an aromatic-type heterocyclic lactone under HTS 2932.20.4500. Imported as bulk pharmaceutical and nutritional supplement intermediate.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• Chemical structure certification must emphasize lactone ring to justify Chapter 29 over vitamin preparations

• FDA registration required for food/pharma use; include DMF if for drug manufacturing

• Avoid retail packaging; bulk only to prevent reclassification under Chapter 30 pharmaceuticals