Operation of project of wastewater treatment plant for the Seien area in Hamamatsu City (hereinafter called the Project) started by Hamamatsu Water Symphony K.K. (HQ: Hamamatsu, Shizuoka. President: Takafumi Yamasaki, hereinafter called HWS) whose shares held by Veolia Japan K.K., Veolia Jenets K.K. (HQ: Minato-ku, Tokyo. President: Yumiko Noda), JFE Engineering Corporation (HQ: Chiyoda-ku, Tokyo. President: Hajime Oshita), ORIX Corporation (HQ: Minato-ku, Tokyo. President: Makoto Inoue), SUYAMA CONSTRUCTION (HQ: Hamamatsu, Shizuoka. President: Kozo Suyama), and TOKYU CONSTRUCTION CO., LTD (HQ: Shibuya-ku, Tokyo. President: Tsuneo Iizuka.)