Each metal chloride in a mixed shipment must be classified individually by its specific cation—vanadium, tin, titanium, tungsten, barium, iron, cobalt, zinc, or lithium each has a dedicated 10-digit line under 282739. Only chlorides of metals not specifically named fall to the residual lines (2827399050 or 2827399150). Mixed shipments should be invoiced with separate line items by chemical identity to avoid CBP queries and potential misclassification penalties. A binding ruling from CBP is advisable for novel or ambiguous compounds.

Lithium chloride (2827399010) is not currently subject to a standalone trade-remedy order, but its strategic importance as a lithium compound means importers should monitor Section 301 developments for Chinese-origin material and any future critical-minerals policy actions. Canada is among the leading suppliers for this heading overall, and Canadian-origin lithium chloride qualifying under USMCA may be eligible for preferential treatment—importers should verify origin documentation carefully.