9902.13.48 - Men's or boys' knitted or crocheted pullovers and cardigans, containing 70 percent or more by weight of silk, each with more than 9 stitches/2 cm, measured in the direction the stitches were formed, and an average of less than 10 stitches/linear cm in each direction counted on an area measuring at least 10 cm by 10 cm, such apparel articles that reach the waist (provided for in subheading 6110.90.10)

This HTS category, 9902.13.48, specifically addresses men's or boys' knitted or crocheted pullovers and cardigans that meet stringent material and construction criteria. The core requirements include a minimum of 70 percent silk by weight, a specific stitch density exceeding 9 stitches per 2 cm in the direction of formation, and an average of less than 10 stitches per linear cm in both directions within a 10 cm by 10 cm area. Furthermore, these garments must be designed to reach the waist.

As this is a leaf node within Chapter 99, it represents a highly specialized classification, likely a temporary modification or restriction related to specific trade agreements or legislation. Unlike the broad categories found at higher levels of the HTS, such as live animals (e.g., 0101-0105) or chapters covering various manufactured goods, 9902.13.48 targets a very precise segment of apparel based on its material composition and intricate construction details. This level of specificity is common in temporary provisions designed to address particular trade situations or incentivize/disincentivize the import of certain goods.

Given that this is a leaf node, there are no further subcategories to introduce. All goods fitting the precise description of men's or boys' silk pullovers and cardigans meeting the stated density and length requirements would be classified directly under 9902.13.48. The classification hinges entirely on verifying the silk content, the precise stitch count per centimeter in both directions, and the garment's length.