WASHINGTON GROUP INTERNATIONAL, INC.

Headquarters. Boise, Idaho Branch Offices. Washington Group International has more than 25 offices in more than 40 countries. Roots. Washington Group was formed in July 2000 following the acquisition by Morrison Knudsen Corp. of Raytheon Engineers & Constructors. Areas of Expertise. The company provides engineering, construction, and program-management services and is organized into five operating

May 29, 2003

Headquarters. Boise, Idaho

Branch Offices.

Washington Group International has more than 25 offices in more than 40 countries.

Roots.

Washington Group was formed in July 2000 following the acquisition by Morrison Knudsen Corp. of Raytheon Engineers & Constructors.

Areas of Expertise.

The company provides engineering, construction, and program-management services and is organized into five operating units: Power, infrastructure and mining, government, industrial/process, and petroleum and chemicals.

Key Markets.

Environmental, government, heavy-civil, industrial, mining, nuclear-services, operations and maintenance, power, process, transportation, and water-resources.