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refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.. As in all operations, the ore must usually be beneficiated (concentrated).Get Price
ae. area means a portion of the contract area identified by the contractor for purposes of development, , utilization, and sites for support facilities or in the immediate vicinity of the operations. af. operation means activities involving exploration, feasibility, development, utilization, and processing. ag.Get Price
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