U.S. Department of Labor | ||||||
Occupational Safety & Health Administration |
SIC Description for 3331
Description for 3331: Primary Smelting and Refining of Copper |
Division D: Manufacturing |
Major Group 33: Primary Metal Industries |
Industry Group 333: Primary Smelting And Refining Of Nonferrous |
3331 Primary Smelting and Refining of Copper |
Establishments primarily engaged in smelting copper from the ore, and in refining copper by electrolytic or other processes. Establishments primarily engaged in rolling, drawing, or extruding copper are classified in Industry 3351.
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