General Meeting of Stockholders,Board of Directors,Executive Committee Board of Auditors,Corporate Auditors' Office
Secretarial Department,Corporate Planning Department,Human Resources Department,Human Rights Promotion Office,Accounting & Finance Department,General Affairs Department,Legal Department,Internal Auditing Department,Information Systems Department,Purchasing Department,Group Management Department
 
Cement Business Company,Sales Department,Production Department,Maintenance & Engineering Department,Environmental Business Company,Sales Department,Research & Development Center,Technical Development Center,Intellectual Property DepartmentMineral Resources Business Company,Sales Department,Mining Department,International Business Company,Business Planning & Development Department,Trading Department
 
Kamiiso Plant,Garo Mine Ofunato Plant,Ofunato Mine Kumagaya Plant Saitama Plant Fujiwara Plant
Tosa Plant,Tosayama Mine Oita Plant Hokkaido Branch Tohoku Branch Tokyo Branch
Kanto Branch Chubu Hokuriku Branch Kansai Shikoku Branch
Chugoku Branch Kyushu Branch Onoda Office,Nishitama Office