1. Department of Civil and Environmental Engineering, National Defense Academy
2. Department of Civil and Environmental Engineering, Fukui College, National Institute of Technology
3. Kyushu Works, Yawata Area, Resource Recycling Division, Nippon Steel Co., Ltd.
4. Kyushu Works, Oita Area, Production & Technical Control Division, Nippon Steel Co., Ltd.
5. Slag, Cement & Resource Recycling Division, Nippon Steel Co., Ltd.
6. Kyushu Works, Oita Area, Resource Recycling Division, Nippon Steel Co., Ltd.
7. Kyushu Office, Nippon Steel Slag Products Co., Ltd.