2918.12.00.00/Potassium D-Hydrogen Tartrate/Japan

Potassium D-Hydrogen Tartrate from Japan

Also known as potassium bitartrate or cream of tartar, this is the acid salt of D-tartaric acid, classified under HTS 2918.12.00.00 when considered as the organic acid per chapter note 5(C)(1) for certain salts. Used in baking powders and as a wine precipitate.

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

• Distinguish from full potassium tartrate (2918.13); partial neutralization keeps with acid

• FDA food contact notification if novel source; traditional wine-derived exempt