Industrial Sand Mining, All Other Nonmetallic Mineral Mining, Water and Sewer Line and Related Structures Construction, Rubber and Plastics Hoses and Belting Manufacturing, Abrasive Product Manufacturing

Masonry Contractors, Gypsum Product Manufacturing, Mineral Wool Manufacturing, All Other Miscellaneous Nonmetallic Mineral Product Manufacturing, Industrial Process Furnace and Oven Manufacturing

All Other Miscellaneous Nonmetallic Mineral Product Manufacturing, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Hardware Manufacturing, Machine Shops, Precision Turned Product Manufacturing

ceramic, ceramic materials, ceramic technology, silicon nitride, armor, ceramic science, metallurgy, pm materials, materials research, materials technology

Other Commercial Printing, All Other Miscellaneous Nonmetallic Mineral Product Manufacturing, All Other Miscellaneous Store Retailers (except Tobacco Stores), Display Advertising

Ready-Mix Concrete Manufacturing, Concrete Block and Brick Manufacturing, Concrete Pipe Manufacturing, Other Concrete Product Manufacturing, Lime Manufacturing

Crushed broken stone

formed, machined, components

All Other Miscellaneous Nonmetallic Mineral Product Manufacturing, Nonupholstered Wood Household Furniture Manufacturing, Metal Household Furniture Manufacturing, Institutional Furniture Manufacturing, Custom Architectural Woodwork and Millwork Manufacturing

All Other Miscellaneous Nonmetallic Mineral Product Manufacturing, Other Metal Valve and Pipe Fitting Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing, Fluid Power Pump and Motor Manufacturing, Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial

COORSTEK, INC.

All Other Miscellaneous Food Manufacturing, Fabric Coating Mills, All Other Converted Paper Product Manufacturing, Commercial Screen Printing, Unlaminated Plastics Film and Sheet (except Packaging) Manufacturing

All Other Miscellaneous Food Manufacturing, All Other Miscellaneous Textile Product Mills, All Other Miscellaneous Wood Product Manufacturing, All Other Converted Paper Product Manufacturing, All Other Petroleum and Coal Products Manufacturing

Ground or Treated Mineral and Earth Manufacturing, All Other Miscellaneous Nonmetallic Mineral Product Manufacturing, Optical Instrument and Lens Manufacturing, Electronic Coil, Transformer, and Other Inductor Manufacturing

Plastics Material and Resin Manufacturing, Synthetic Rubber Manufacturing, Soap and Other Detergent Manufacturing, Polish and Other Sanitation Good Manufacturing, Surface Active Agent Manufacturing

All Other Miscellaneous Textile Product Mills, Commercial Lithographic Printing, Commercial Gravure Printing, Commercial Screen Printing, Other Commercial Printing

Construction Sand and Gravel Mining, Wood Preservation, Coated and Laminated Paper Manufacturing, Die-Cut Paper and Paperboard Office Supplies Manufacturing, Petroleum Refineries

Other Apparel Accessories and Other Apparel Manufacturing, All Other Miscellaneous Wood Product Manufacturing, Laminated Plastics Plate, Sheet (except Packaging), and Shape Manufacturing, Polystyrene Foam Product Manufacturing, Urethane and Other Foam Product (except Polystyrene) Manufacturing

All Other Metal Ore Mining, Other Crushed and Broken Stone Mining and Quarrying, Support Activities for Metal Mining, Support Activities for Nonmetallic Minerals (except Fuels) Mining, Nuclear Electric Power Generation

Rubber and Plastics Hoses and Belting Manufacturing, All Other Miscellaneous Nonmetallic Mineral Product Manufacturing, Fluid Power Valve and Hose Fitting Manufacturing, Mechanical Power Transmission Equipment Manufacturing, Other Engine Equipment Manufacturing