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Supply & Demand

Gold concentrate

Au ≥ 15g ; As < 3.5%

Lead concentrate

Pb ≥ 45%, As ≤ 0.7%, Hg ≤ 0.05%

Polymetallic concentrate

Cu > 10%, Au 1-10g/t, Ag 100-800 g/t

Copper concentrate

Cu > 15%, S > 20%,

Zinc concentrate

Zn ≥ 40%, As ≤ 0.6%, Cd ≤ 0.3%, Hg ≤ 0.06%

Unroasted pyrite/iron concentrate

S>35%, Au>1 g/t, Ag>40 g/t