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.

• Bars, refinery: primary copper
• Blister copper
• Blocks, copper
• Copper ingots and refinery bars, primary
• Copper smelting and refining, primary
• Pigs, copper
• Primary smelting and refining of copper
• Slabs, copper: primary