Drawn Borosilicate Glass Sheet for Lab Tables from China

Heat-resistant drawn borosilicate glass sheet for laboratory tabletops and equipment covers. HTS 7004.90.50.00 covers this as other drawn glass sheets not otherwise worked, including fused silica per chapter note.

Duty Rate — China → United States

40%

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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Import Tips

Include chemical composition analysis showing borosilicate to leverage chapter note on fused quartz/silica

Ensure declaration specifies 'not otherwise worked' to prevent reclassification to 7006 for profiled sheets

Test for coatings; even thin reflecting layers could shift to specific 7004 subheadings if declared