NETWORK ELECTRICAL SERVICES

Building Construction and Repair

Owner

TOWER CLEANING SYSTEMS, INC.

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DAYSTAR·USM EXTERIOR SERVICES

Building Construction and Repair and 2 other

Owner

TOWER CLEANING SYSTEMS, INC.

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US MAINTENANCE

Building Construction and Repair and 2 other

Owner

TOWER CLEANING SYSTEMS, INC.

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USM FLOORCARE & JANITORIAL

Building Construction and Repair

Owner

TOWER CLEANING SYSTEMS, INC.

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COMMITTED TO A HIGHER STANDARD

Building Construction and Repair and 2 other

Owner

TOWER CLEANING SYSTEMS, INC.

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USM

Building Construction and Repair and 2 other

Owner

TOWER CLEANING SYSTEMS, INC.

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GLOBAL RESTORATION SERVICES

Building Construction and Repair

Owner

TOWER CLEANING SYSTEMS, INC.

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U.S. FACILITIES MANAGEMENT

Building Construction and Repair

Owner

TOWER CLEANING SYSTEMS, INC.

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USM·TECH ROOFING SERVICES

Building Construction and Repair and 2 other

Owner

TOWER CLEANING SYSTEMS, INC.

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USM·TECH HVAC SERVICES

Building Construction and Repair and 2 other

Owner

TOWER CLEANING SYSTEMS, INC.

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U. S. MAINTENANCE

Building Construction and Repair

Owner

TOWER CLEANING SYSTEMS, INC.

May 16, 2000
U.S. CLEANING

Advertising and Business

Owner

TOWER CLEANING SYSTEMS, INC.

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U.S. JANITORIAL

Advertising and Business

Owner

TOWER CLEANING SYSTEMS, INC.

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