Casein Shirt Buttons from Mexico
Small, durable buttons made from casein, a milk-derived protein plastic, used for fastening shirts and blouses. They fall under HTS 9606.21.20.00 as buttons specifically of casein, which is explicitly listed in the subheading for plastic buttons not covered with textile material. These buttons provide a natural, pearl-like appearance ideal for apparel.
Duty Rate — Mexico → United States
Rate breakdown
Import Tips
• Verify casein composition via lab testing or supplier certification to confirm classification under 9606.21.20.00, as other plastics fall elsewhere
• Label products clearly with material content to comply with textile and consumer product regulations during customs clearance
• Avoid common pitfalls like misdeclaring as synthetic plastic buttons, which could shift to 9606.21.40.00 and alter duties