3923.10 - Boxes, cases, crates and similar articles:

This HTS category, 3923.10, encompasses a broad range of rigid containers manufactured from plastics, designed for the conveyance or packing of goods. These articles are characterized by their enclosed structure, serving to protect, contain, and facilitate the transport of various commodities. Examples include boxes, cases, crates, and other similar articles that possess a defined shape and structural integrity to hold their contents.

While this category covers rigid containers, it is distinct from its siblings. For instance, it is differentiated from sacks and bags (3923.21-29) which are typically flexible. It also differs from carboys, bottles, and flasks (3923.30) which are generally designed to hold liquids and often feature a neck for pouring or sealing. Furthermore, this category excludes spools, cops, and bobbins (3923.40) used for winding materials, and stoppers, lids, and caps (3923.50) which are specifically closure devices rather than complete containers.

Within the 3923.10 category, further distinctions are made through subcategories. The primary subdivision addresses articles specifically shaped or fitted for the delicate conveyance or packing of semiconductor wafers, masks, or reticles. These specialized items are designed with precise internal configurations to prevent damage to high-value electronic components. The "Other" subcategory (3923.10.90) captures all remaining boxes, cases, crates, and similar articles of plastic not meeting the specific criteria for semiconductor packaging.