2918.13.50.00 - Other

This HTS category, "Other" under salts and esters of tartaric acid (2918.13.50.00), serves as a residual classification for tartaric acid salts and esters that do not fall into the more specifically enumerated sub-classifications. It is designed to capture any remaining compounds within this family of tartaric acid derivatives that are not explicitly listed.

Unlike its sibling categories, which precisely identify potassium antimony tartrate, potassium bitartrate, and potassium sodium tartrate by their common names and specific chemical compositions, this "Other" category encompasses all other tartaric acid salts and esters. These might include different alkali metal salts, other metal salts, or various esterification products of tartaric acid that are not otherwise detailed. The key distinguishing factor is the absence of specific naming or structural definition in the preceding sibling categories.

As this is a terminal node within the HTS classification, there are no further subcategories to introduce. The classification process for goods falling under 2918.13.50.00 would therefore involve a thorough examination to confirm that the product is indeed a salt or ester of tartaric acid and that it does not meet the specific criteria for any of the preceding sibling categories (2918.13.10.00, 2918.13.20.00, or 2918.13.30.00).