Material processing, namely obtaining elements, common metals, ore concentrates and derivatives thereof from native earth materials; refining of metals in the nature of ore concentrate elements; waste materials treatment

'common':6 'concentr':9,25 'deriv':11 'earth':15 'element':5,26 'materi':1,16,28 'metal':7,19 'name':3 'nativ':14 'natur':22 'obtain':4 'ore':8,24 'process':2 'refin':17 'thereof':12 'treatment':29 'wast':27

Mining extraction of minerals, elements, common metals, rare earths, rare metals, and derivatives thereof

'common':6 'deriv':13 'earth':9 'element':5 'extract':2 'metal':7,11 'mine':1 'miner':4 'rare':8,10 'thereof':14

Scandium, rare earths, rare earth compounds, namely, rare earth metals

'compound':6 'earth':3,5,9 'metal':10 'name':7 'rare':2,4,8 'scandium':1

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