WCO Explanatory Notes reproduced for reference. © World Customs Organization. Verify against official WCO publication.
26.12 - Uranium or thorium ores and concentrates. - Uranium ores and concentrates 2612.20 - Thorium ores and concentrates 2612.10 The principal uranium ores generally classified in this heading are : (a) Autunite, hydrated phosphate of uranium and calcium. (b) Brannerite, uranium titanate. (c) Carnotite, hydrated vanadate of uranium and potassium. (d) Coffinte, uranium silicate. (e) Davidite, uranium iron titanate. (f) Parsonsite, hydrated phosphate of uranium and lead. (g) Pitchblende and uraninite, saline uranium oxides. (h) Torbemite (or chalcolite), hydrated phosphate of uranium and copper. (ij) Tyuyamunite, hydrated vanadate of uranium and calcium. (k) Uranophane, calcium-uranium silicate. (1) Uranothorianite, oxide of uranium and thorium. The principal thorium ores generally classified in this heading are : (a) Monazite, phosphate of thorium and rare earths. (b) Thorite, hydrated thorium silicate. The heading excludes those products known in trade as " concentrates " of uranium which are obtained by processes not normal to the metallurgical industry (heading 28.44).
1.- This Chapter does not cover : (a) Slag or similar industrial waste prepared as macadam (heading 25.17); (b) Natural magnesium carbonate (magnesite), whether or not calcined (heading 25.19); (c) Sludges from the storage tanks of petroleum oils, consisting mainly of such oils (heading 27.10); (d) Basic slag of Chapter 31; (e) Slag wool, rock wool or similar mineral wools (heading 68.06); (f) Waste or scrap of precious metal or of metal clad with precious metal; other waste or scrap containing precious metal or precious metal compounds, of a kind used principally for the recovery of precious metal (heading 71.12 or 85.49); or (g) Copper, nickel or cobalt mattes produced by any process of smelting (Section XV). 2.- For the purposes of headings 26.01 to 26.17, the term “ores” means minerals of mineralogical species actually used in the metallurgical industry for the extraction of mercury, of the metals of heading 28.44 or of the metals of Section XIV or XV, even if they are intended for non-metallurgical purposes. Headings 26.01 to 26.17 do not, however, include minerals which have been submitted to processes not normal to the metallurgical industry. 3.- Heading 26.20 applies only to : (a) Slag, ash and residues of a kind used in industry either for the extraction of metals or as a basis for the manufacture of chemical compounds of metals, excluding ash and residues from the incineration of municipal waste (heading 26.21); and (b) Slag, ash and residues containing arsenic, whether or not containing metals, of a kind used either for the extraction of arsenic or metals or for the manufacture of their chemical compounds. Subheading Notes. 1.- For the purposes of subheading 2620.21, “leaded gasoline sludges and leaded anti-knock compound sludges” mean sludges obtained from storage tanks of leaded gasoline and leaded anti-knock compounds (for example, tetraethyl lead), and consisting essentially of lead, lead compounds and iron oxide. 2.- Slag, ash and residues containing arsenic, mercury, thallium or their mixtures, of a kind used for the extraction of arsenic or those metals or for the manufacture of their chemical compounds, are to be classified in subheading 2620.60.