2841.90 - Other:

HTS code 2841.90 encompasses "Other" salts of oxometallic or peroxometallic acids not specifically enumerated in preceding subheadings of 2841. This category serves as a residual classification for compounds of this nature. For instance, it includes salts formed from acids containing oxygen in combination with metals or non-metals, where the metal is in a high oxidation state, or peroxometallic acids where the peroxy group (O2^2-) is present.

This classification is distinguished from its siblings by the absence of specific entries for chromates, dichromates, manganates, permanganates, molybdates, and tungstates, which are detailed in adjacent subheadings. Therefore, 2841.90 applies to oxometallic and peroxometallic acid salts that do not fall under those more precisely defined groups.

Within the 2841.90 category, further subdivisions exist to provide more granular classification. These include vanadates, ammonium perrhenate, potassium stannate, and aluminates, among others. The existence of these subcategories allows for the specific identification of various metal-containing salts of oxometallic or peroxometallic acids based on their elemental composition and the specific acid from which they are derived, ensuring accurate duty assessment and trade statistics.