New Multifamily Housing Construction (except Operative Builders), Industrial Building Construction, Commercial and Institutional Building Construction, Structural Steel and Precast Concrete Contractors, Other Foundation, Structure, and Building Exterior Contractors

Iron and Steel Mills

Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Hardware Merchant Wholesalers, Industrial Machinery and Equipment Merchant Wholesalers, Industrial Supplies Merchant Wholesalers, Other Chemical and Allied Products Merchant Wholesalers

Highway, Street, and Bridge Construction, Structural Steel and Precast Concrete Contractors, Other Building Finishing Contractors, Other Concrete Product Manufacturing, Rolled Steel Shape Manufacturing

Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum), Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers, Other Professional Equipment and Supplies Merchant Wholesalers, Hardware Merchant Wholesalers

Water Supply and Irrigation Systems, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Hardware Manufacturing, Other Fabricated Wire Product Manufacturing, Bolt, Nut, Screw, Rivet, and Washer Manufacturing

Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Fabricated Structural Metal Manufacturing, Other Metal Container Manufacturing

Iron and Steel Pipe and Tube Manufacturing from Purchased Steel

Steel Wire Drawing, Ornamental and Architectural Metal Work Manufacturing

Other Foundation, Structure, and Building Exterior Contractors, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Plate Work Manufacturing, Hardware Merchant Wholesalers, Industrial Supplies Merchant Wholesalers

Power and Communication Line and Related Structures Construction, Electrical Contractors, Aluminum Foundries (except Die-Casting), Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial, Power, Distribution, and Specialty Transformer Manufacturing

Steel Wire Drawing, Farm Machinery and Equipment Manufacturing, Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing

Other Building Finishing Contractors, Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum), Irradiation Apparatus Manufacturing

Petroleum Refineries, Petroleum Lubricating Oil and Grease Manufacturing, All Other Petroleum and Coal Products Manufacturing, All Other Basic Organic Chemical Manufacturing, Paint and Coating Manufacturing

Highway, Street, and Bridge Construction, All Other Specialty Trade Contractors, All Other Miscellaneous Wood Product Manufacturing, Steel Wire Drawing, Ornamental and Architectural Metal Work Manufacturing

Aluminum Foundries (except Die-Casting)

Structural Steel and Precast Concrete Contractors, Beet Sugar Manufacturing, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Rolled Steel Shape Manufacturing, Aluminum Sheet, Plate, and Foil Manufacturing

Plate Work Manufacturing, Sheet Metal Work Manufacturing, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, All Other Miscellaneous Electrical Equipment and Component Manufacturing

Electrical Contractors, All Other Specialty Trade Contractors, Wood Preservation, Cut Stock, Resawing Lumber, and Planing, All Other Miscellaneous Wood Product Manufacturing

Copper Wire (except Mechanical) Drawing, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Audio and Video Equipment Manufacturing, Electronic Connector Manufacturing

Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding

Industrial Building Construction, Commercial and Institutional Building Construction, Other Heavy and Civil Engineering Construction, Poured Concrete Foundation and Structure Contractors, Structural Steel and Precast Concrete Contractors

Nitrogenous Fertilizer Manufacturing, All Other Miscellaneous Nonmetallic Mineral Product Manufacturing, Alumina Refining, Primary Aluminum Production, Environmental Consulting Services

Plastics Plumbing Fixture Manufacturing, All Other Plastics Product Manufacturing, Aluminum Die-Casting Foundries, Nonferrous (except Aluminum) Die-Casting Foundries, Aluminum Foundries (except Die-Casting)