Slag, ash and residues (other than from the manufacture of iron or steel), containing arsenic, metals or their compounds:

2620.11.00.00Hard zinc spelter 2620.19Other: 2620.19.30.00Zinc dross and zinc skimmings 2620.19.60Other 2620.19.60.10Copper content 2620.19.60.20Lead content 2620.19.60.30Zinc content 2620.19.60.40Silver content 2620.19.60.50Gold content 2620.21.00Leaded gasoline sludges and leaded anti-knock compound sludges 2620.21.00.10Copper content 2620.21.00.20Lead content 2620.21.00.30Zinc content 2620.21.00.40Silver content 2620.21.00.50Gold content 2620.29.00Other 2620.29.00.10Copper content 2620.29.00.20Lead content 2620.29.00.30Zinc content 2620.29.00.40Silver content 2620.29.00.50Gold content 2620.30.00Containing mainly copper 2620.30.00.10Copper content 2620.30.00.20Lead content 2620.30.00.30Zinc content 2620.30.00.40Silver content 2620.30.00.50Gold content 2620.40.00Containing mainly aluminum 2620.40.00.30Vanadium bearing materials 2620.40.00.60Other 2620.60Containing arsenic, mercury, thallium or their mixtures, of a kind used for the extraction of arsenic or those metalsor for the manufacture of their chemical compounds: 2620.60.10.00Of a kind used only for the extraction of arsenic or the manufacture of its chemical compounds 2620.60.90.00Other 2620.91.00.00Containing antimony, beryllium, cadmium, chromium or their mixtures 2620.99Other: 2620.99.10.00Containing mainly vanadium 2620.99.20.00Containing mainly tungsten 2620.99.30.00Materials not provided for elsewhere in this heading containing by weight over 10 percent nickel 2620.99.50.00Slag containing by weight over 40 percent titanium, and which if containing over 2 percent by weight of copper, lead, or zinc is not to be treated for the recovery thereof 2620.99.75Other materials which are residues not advanced in value or condition by any means, and which if containing over 2 percent by weight of copper, lead or zinc are not to be treated for the recovery thereof 2620.99.75.20Vanadium bearing materials 2620.99.75.60Other materials containing silver 2620.99.75.80Other materials containing gold 2620.99.75.90Other materials that do not contain vanadium, silver or gold 2620.99.85.00Other