1. Mitsubishi Atomic Power Industries, Inc., 2-4-1 Shibakouen, Minato-ku, Tokyo, Japan
2. Mitsubishi Heavy Industries, Ltd., 2-1-1 Shinhama, Arai-cho, Takasago, Hyogo Pref., Japan
3. Kansai Electric Power Company, Inc., 3-3-22 Nakanoshima, Kita-ku, Osaka, Japan