6004.90 - Other:

HTS code 6004.90 encompasses knitted or crocheted fabrics with a width exceeding 30 cm that contain 5 percent or more of elastomeric yarn or rubber thread, but do not fit into the more specific category of 6004.10. This "Other" designation signifies that the fabric may contain a combination of elastomeric yarn and rubber thread, or other specific compositions not detailed in the preceding subheadings.

Distinct from HTS code 6004.10.00, which exclusively covers fabrics containing elastomeric yarn but *not* rubber thread, 6004.90 serves as a residual category for fabrics meeting the general criteria of Chapter 60 but not falling into the most narrowly defined subheadings. The presence of either elastomeric yarn, rubber thread, or both, in the specified weight percentage, is the key determinant for inclusion within heading 6004.

Within HTS code 6004.90, further subdivisions exist to provide more granular classification. Subcategory 6004.90.20 specifically addresses fabrics that contain *both* elastomeric yarn and rubber thread, allowing for a more precise identification of such composite materials. The remaining portion of this category, 6004.90.90.00, serves as a catch-all for any knitted or crocheted fabrics that meet the broad criteria of heading 6004 but are not otherwise specified, including potentially those with unique blends or less common elastomeric or rubber thread compositions.