Casein Bookbinding Glue from China
A traditional protein glue from casein used in bookbinding for spine adhesion and lay-flat properties in hardcover books. It qualifies for HTS 3501.90.20.00 as a casein glue, not covered by printing gelatin products in Chapter 49 per chapter notes.
Duty Rate — China → United States
23.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Import Tips
• Provide binding industry end-use letters to distinguish from general purpose glues and support classification
• Ensure no enzymatic pre-treatment additives to avoid overlap with excluded Chapter 34 products