Major Group: 10—Metal Mining

This major group includes establishments primarily engaged in mining, developing mines, or exploring for metallic minerals (ores). These ores are valued chiefly for the metals contained, to be recovered for use as such or as constituents of alloys, chemicals, pigments or other products. This major group also includes all ore dressing and beneficiating operations, whether performed at mills operated in conjunction with the mines served or at mills, such as custom mills, operated separately. These include mills which crush, grind, wash, dry, sinter, calcine, or leach ore, or perform gravity separation or flotation operations. Magnesite and brucite operations are classified in Industry 1459, and crushed dolomite operations are classified in Industry 1422. Smelters and refineries are classified in Manufacturing, Major Group 33, and establishments engaged in producing primary magnesium metal are classified in Manufacturing, Industry 3339. The operation of brine wells or sea water plants for the production of magnesium is classified in Manufacturing, Major Group 28.

When performed by operators of the properties, exploration under preliminary phases of operation should be classified according to the type of ore expected to be found. Exploration performed on a contract or fee basis is classified in Industry 1081.

Codes Titles Number of US Businesses
Industry Group 101: Iron Ores
1011Iron Ores79
Industry Group 102: Copper Ores
1021Copper Ores77
Industry Group 103: Lead And Zinc Ores
1031Lead and Zinc Ores31
Industry Group 104: Gold And Silver Ores
1041Gold Ores326
1044Silver Ores40
Industry Group 106: Ferroalloy Ores, Except Vanadium
1061Ferroalloy Ores, Except Vanadium18
Industry Group 108: Metal Mining Services
1081Metal Mining Services457
Industry Group 109: Miscellaneous Metal Ores
1094Uranium-Radium-Vanadium Ores52
1099Miscellaneous Metal Ores, Not Elsewhere Classified56