4706.93.01.00 - Obtained by a combination of mechanical and chemical processes

This HTS category, 4706.93.01.00, covers pulps derived from fibrous cellulosic materials that have undergone a combination of both mechanical and chemical processing. These pulps are distinct from those produced solely by mechanical means or exclusively by chemical means. The dual processing approach aims to achieve specific properties in the resulting pulp, balancing the fibrous integrity retained through mechanical methods with the purification and fiber modification capabilities offered by chemical treatments.

Unlike the mechanically produced pulps classified under 4706.91.00.00, which primarily rely on physically breaking down the cellulosic material, or chemical pulps under 4706.92.01.00, which primarily use chemical agents to remove lignin, this category encompasses materials where both methods are integral to the production. This combination allows for a wider range of pulp characteristics, such as controlled fiber length, brightness, and purity, suitable for various paper and paperboard applications. The specific ratio and method of mechanical and chemical treatments are key determinative factors for classification within this sub-heading.