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Casein Button Blanks for Shirt Buttons from Japan

Round casein button blanks designed for manufacturing buttons used on men's dress shirts. These blanks are made from milk-derived casein material and require final shaping and drilling for holes. Classified under HTS 9606.30.4000 as button blanks specifically of casein, excluding finished buttons.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

Import Tips

• Verify material composition with lab tests to confirm casein content, as misclassification to plastic blanks (3926.90) is common

• Include supplier certificates stating 'button blanks of casein' for CBP review to avoid reclassification

• Import in bulk quantities with commercial packaging to qualify as parts, not retail-ready goods