Natto Fermented Soybeans from Mexico
Natto is whole soybeans fermented with Bacillus subtilis, sticky and pungent, eaten as a Japanese breakfast food. It is included in HTS 2008.99.91.10 as a similar fermented bean product like miso. This subheading accommodates various preserved soy ferments.
Duty Rate — Mexico → United States
6%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include strain certification for the fermenting bacteria to meet biotech import rules
• Refrigerate shipments to preserve live cultures without spoilage claims
• Warn of strong odor on manifests to prepare customs for sensory inspection