Regular Members  
 Aisawa Corporation  
 Asanuma Corporation  
 Asunaro Aoki Construction. Co., Ltd.  
 Dai Nippon Construction  
 Daiho Corporation  
 Fudo Tetra Corporation  
 Fujita Corporation  
 Fukuda Corporationn  
 Hazama Ando Corporation
 Honma Corporation  
 Iwata Chizaki Inc.  
 JDC Corporation  
 Kajima Corporation  
 Konoike Construction Co., Ltd.  
 Kumagai Gumi Co., Ltd.  
 Maeda Corporation  
 Morimoto Corporation  
 Muramoto Construction Co., Ltd.  
 Nishimatsu Construction Co., Ltd.  
 Nissan Rinkai Construction Co., Ltd.  
 Obayashi Corporation  
 Ohmoto Gumi Co., Ltd.  
 Okumura Corporation  
 Okumura Engineering Corporation  
 Orientaru Shiraishi Corporation  
 P.S. Mitsubishi Construction Co., Ltd.  
 Penta-Ocean Construction Co.,Ltd.  
 Sakata-Construction Co., Ltd.  
 Sato Kogyo Co., Ltd.  
 Seibu Construction Co., Ltd.  
 Shimizu Corporation  
 Sumitomo Mitsui Construction Co., Ltd.
 Taisei Corporation
 Takenaka Civil Engineering & Construction Co., Ltd.  
 Tekken Corporation  
 Toa Corporation  
 Tobishima Corporation  
 Toda Corporation  
 Tokyu Construction Co., Ltd.  
 Toyo Construction Co., Ltd.  
 Wakachiku Construction Co., Ltd.  
 The Zenitaka Corporation ▲up
   
Supporting Members  
 Aktio Corporation  
 Fujimi Koken Co., Ltd.  
 Geostr Corporation  
 Hitachi Zosen Corporation  
 IHI Construction Materials Co., Ltd.  
 ITOCHU Construction Machinery Co. Ltd.  
 JFE Metal Production&Engineering Inc.  
 JIM Technology Corporation  
 Kajima Mechatro Engineering Co., Ltd.  
 Kawasaki Hevy Industries, Ltd.  
 Komatsu Ltd.  
 Nippon Concrete Industries Co., Ltd.  
 Nippon Steel & Smitomo Metal Corporation  
 Seiwa Renewal Works Co., Ltd.  
 SMC Preconcrete Co., Ltd.  
 TAC Corporation  
 Tachibana Material Co., Ltd.  
 Taiheiyo Shield Mechanics  
 Telnite Co., Ltd.  
 Toyo Industry Co., Ltd.
 Tsuzuki Concrete Industrial Corporation ▲up





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