ROTEK INC.

Audio and Video Equipment Manufacturing

Semiconductor and Related Device Manufacturing

Copper Wire (except Mechanical) Drawing, Telephone Apparatus Manufacturing, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals, Other Communication and Energy Wire Manufacturing

Heating Equipment (except Warm Air Furnaces) Manufacturing, Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial, Electric Housewares and Household Fan Manufacturing, Electrical and Electronic Appliance, Television, and Radio Set Merchant Wholesalers

Watch, Clock, and Part Manufacturing, Other Measuring and Controlling Device Manufacturing, All Other Miscellaneous Electrical Equipment and Component Manufacturing, Sign Manufacturing, All Other Miscellaneous Manufacturing

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur, Other Professional Equipment and Supplies Merchant Wholesalers, Engineering Services, Testing Laboratories, Administrative Management and General Management Consulting Services

Power and Communication Line and Related Structures Construction, Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals, Other Scientific and Technical Consulting Services

Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Audio and Video Equipment Manufacturing, Household Appliance Stores

Analytical Laboratory Instrument Manufacturing

Other Measuring and Controlling Device Manufacturing, Toy and Hobby Goods and Supplies Merchant Wholesalers, Other Support Activities for Air Transportation, Engineering Services, Custom Computer Programming Services

Audio and Video Equipment Manufacturing

Other Electronic Component Manufacturing, Storage Battery Manufacturing, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur

Computer Storage Device Manufacturing

Software Reproducing, Software Publishers

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial

Audio and Video Equipment Manufacturing, Other Electronic Component Manufacturing, All Other Miscellaneous Electrical Equipment and Component Manufacturing, Other Computer Related Services, All Other Professional, Scientific, and Technical Services

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial, Other Measuring and Controlling Device Manufacturing, All Other Miscellaneous Store Retailers (except Tobacco Stores)