Vitamin K2 (MK-7) Natto Bacterial Concentrate from China
Natto fermentation-derived menaquinone-7 concentrate for bone health supplements as natural vitamin K2 source. Classified under HTS 2936.90.01 as bacterial natural vitamin concentrate.
Duty Rate — China → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Verify Bacillus subtilis strain and fermentation purity
• Test for natto allergen proteins
• Specify MK-7/MK-4 isomer ratio