Casein for Leather Finishing from Mexico
Casein emulsion used in leather surface finishing for durability, classified as other under HTS 3501.10.5000. Enhances water resistance without tanning.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify post-tanning use to avoid Chapter 32 enzymatic preps
• Test for heavy metal contaminants in leather applications
• Use stabilized emulsions to prevent separation in shipping