(Based on Use in Commerce) Metal refining; mineral processing, namely, obtaining metals from native earth materials

'base':1 'commerc':5 'earth':15 'materi':16 'metal':6,12 'miner':8 'name':10 'nativ':14 'obtain':11 'process':9 'refin':7 'use':3

Copper concentrate in the form of fine sand like particles; copper cathode in the form of sheets or plates of 99.999% purity

'99.999':21 'cathod':12 'concentr':2 'copper':1,11 'fine':7 'form':5,15 'like':9 'particl':10 'plate':19 'puriti':22 'sand':8 'sheet':17

(Based on Use in Commerce) Mining extraction

'base':1 'commerc':5 'extract':7 'mine':6 'use':3

M

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