Material processing, namely, obtaining metals and minerals from native earth materials; treatment of metals, namely, production of zinc concentrate,[ copper cathode, precious metal slimes and copper anode tankhouse slimes]

'anod':27 'cathod':21 'concentr':19 'copper':20,26 'earth':10 'materi':1,11 'metal':5,14,23 'miner':7 'name':3,15 'nativ':9 'obtain':4 'precious':22 'process':2 'product':16 'slime':24,29 'tankhous':28 'treatment':12 'zinc':18

Mining extraction of refined or partially refined minerals and metals

'extract':2 'metal':10 'mine':1 'miner':8 'partial':6 'refin':4,7

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