Establishments primarily engaged in smelting copper from the ore, and in refining copper by electrolytic or other processes.
SIC Code 3331 - Primary Smelting and Refining of Copper is a final level code of the “Manufacturing” Division. There are 4 companies classified in this industry in the USA with an estimated employment of 0 people.
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Common types of examples within SIC Code 3331 - Primary Smelting and Refining of Copper are:
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Establishments primarily engaged in rolling, drawing, or extruding copper are classified in SIC Code - 3351.
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