TARIFF SCHEDULES OF THE UNITED STATES
SCHEDULE 6, - METALS AND METAL PRODUCTS Part i. - Metal-Bearing Ores and Other Metal-Bearing Materials Rates of Duty
PART 1. - METAL-BEARING ORES AND OTHER METAL-BEARING MATERIALS Part
I headnotes:
1. This part covers metal-bear!ng ores, and certain other metal-bearing materials. This part does not cover — (a) pigments or fertilizers (see schedule 4, parts 9B and II, respectively), or chemical compounds (see schedule 4); (b) slag cements, mineral wools, dolomite, cryolite, chiolite, or alunlte, magnesite, or calcined bauxite (see schedule 5, part U; (c) precious and semiprecious stones (see schedule 5, part IH); or (d) metal waste and scrap,, native metals separated from their gangues or matrices, or other metals essentially in a metallic state (see part 2 of this schedule). 2.
For the purposes of this part — (a) the term "metal-bearing ores" embraces only metalliferous minerals, whether crude or concentrated (by crushing, flotation, washing, or by other physical or mechanical separation processes which do not Involve substantial chemical change), and roasted or sintered lead, copper, and zinc concentrates, from which precious metals or base metals, as defined In headnote 2 of this schedule, are commercially obtained, including metals obtained directly in unalloyed form. In the form of alloys, or In the form of chemical compounds; (b) the term " other m e t a l - b e a r i n g m a t e r l a i s of a type commonly used for the extraction of metal or as a basis for the manufacture of chemical compounds" embraces ash, slag, dross, scale, mattes, speiss, skimmings, flue dust, fumes, refinery slimes, residues, and all other materials (except metal-bearing ores, as above defined, and the dross or residuum from burnt pyrites) of a type from which precious metals or base metals, as defined in headnote 2 of this schedule, are conmonly obtained (either as the result of a further processing of the materials as such, or as a result of the addition of the materials as alloying materials to other materials being processed), including metals obtained directly In unalloyed form. In the form of alloys, or In the form of chemical compounds; (c) lead Plants are pyrometallurglcal reduction facilities whose principal production by weight, exclusive of waste materials and by-products, consists of lead bulI ion; (d) copper plants are pyrometallurglcal reduction facilities whose principal production by weight, exclusive of waste materials and by-products, consists of blister copper, black copper, anode copper, or fire-refined copper; (e) zinc Plants are facilities whose principal production by weight, exclusive of waste materials and by-products, consists of unwrought zinc metal, zinc pigments, zinc compounds, or zinc fume; and (f) other plants are all facilities which do hot fall within the foregoing definitions of lead plants, copper plants, and zinc plants.
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