Polymer-Based Non-Refractory Mortar Mix from China

A ready-to-use mortar mix containing polymer additives and fine aggregates, designed for construction applications like bricklaying and plastering where high adhesion is needed. It falls under HTS 3824.50.0050 as a non-refractory mortar not elsewhere specified, consisting of chemical preparations from the chemical industries. This classification applies to pre-mixed formulations without refractory properties.

Duty Rate — China → United States

35%

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

Verify composition meets non-refractory standards; refractory materials shift to 3816

Include safety data sheets (SDS) and test reports for VOC content to comply with EPA regulations

Avoid misclassification as ready-mixed concrete (3824.50.5050) by specifying dry powder form