4206.00 - Articles of gut (other than silkworm gut), of goldbeater's skin, of bladders or of tendons:

This HTS category, 4206.00, encompasses articles manufactured from specific animal by-products, excluding those derived from silkworms. The primary materials covered include gut (not silkworm gut), goldbeater's skin, bladders, and tendons. These materials are processed and fashioned into various finished or semi-finished goods.

Unlike sibling categories within Section VIII that focus on raw hides, tanned leather, furskins, or finished leather articles, Chapter 4206.00 specifically addresses items made from these less common animal-derived materials. Its scope is distinctly narrower, concentrating on the unique properties and applications of gut, goldbeater's skin, bladders, and tendons as raw materials for manufactured goods.

Within this classification, two subcategories exist: articles made of catgut and other articles. The "Of catgut" designation separates items specifically manufactured for surgical sutures or other medical applications, where the precise processing and sterilization of animal intestines are crucial. The "Other" subcategory captures all remaining articles fashioned from gut, goldbeater's skin, bladders, or tendons that do not fall under the specific catgut designation, encompassing a broader range of non-medical applications.