NAPCO STEEL, INC.

Metal Service Centers and Other Metal Merchant Wholesalers, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers, Data Processing, Hosting, and Related Services, Custom Computer Programming Services, Administrative Management and General Management Consulting Services

AIN PLASTICS

All Other Miscellaneous Textile Product Mills, Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing, Metal Service Centers and Other Metal Merchant Wholesalers, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers

TRINITY METALS

Other Construction Material Merchant Wholesalers, Other Commercial Equipment Merchant Wholesalers, Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers, Other Professional Equipment and Supplies Merchant Wholesalers, Metal Service Centers and Other Metal Merchant Wholesalers

RELIANCE METALCENTER

MELCO STEEL INC

Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum), Metal Service Centers and Other Metal Merchant Wholesalers

Other Construction Material Merchant Wholesalers, Metal Service Centers and Other Metal Merchant Wholesalers, Other Miscellaneous Durable Goods Merchant Wholesalers, Other Building Material Dealers, Marketing Consulting Services

Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Other Metal Container Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing, Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use, Household Cooking Appliance Manufacturing

Sheet Metal Work Manufacturing, Ornamental and Architectural Metal Work Manufacturing, Other Metal Valve and Pipe Fitting Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing, Metal Service Centers and Other Metal Merchant Wholesalers

HAGERTY STEEL & ALUMINUM

Furniture Merchant Wholesalers, Home Furnishing Merchant Wholesalers, Brick, Stone, and Related Construction Material Merchant Wholesalers, Other Construction Material Merchant Wholesalers, Office Equipment Merchant Wholesalers

Fabricated Structural Metal Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing, Other Construction Material Merchant Wholesalers, Metal Service Centers and Other Metal Merchant Wholesalers

Construction Sand and Gravel Mining, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders, Residential Remodelers

Fabricated Structural Metal Manufacturing, Plate Work Manufacturing, Sheet Metal Work Manufacturing, Ornamental and Architectural Metal Work Manufacturing, Machine Shops

All Other Miscellaneous Textile Product Mills

Metal Service Centers and Other Metal Merchant Wholesalers

GALVALOCK