Ash and Residues Containing Other Metals, Not Elsewhere Specified

Line 2620993000 applies specifically to ash and residues containing more than 10 percent nickel by weight. Residues with nickel content at or below that threshold that do not qualify for another named line would fall under the general NESOI line (2620998550). A certified assay report is the standard document used to establish nickel percentage and support the correct line selection at entry.

High-titanium slag — containing more than 40% titanium — is a primary feedstock for titanium dioxide pigment production and titanium metal sponge manufacturing, making it a strategically important material. The line applies only when copper, lead, and zinc content collectively do not exceed 2%, or when the material is not imported for metal recovery purposes; shipments outside these parameters may fall under a different line. Norway is a notable source given its integrated titanium processing industry.