Directors (And Other Officers)
| Concept | As at 2025-06-23 | As at 2025-06-23 | As at 2025-06-23 | As at 2025-06-23 | As at 2025-06-23 | As at 2025-06-23 | As at 2025-06-23 | As at 2025-06-23 | As at 2025-06-23 | As at 2025-06-23 | As at 2025-06-23 | As at 2025-06-23 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Directors (and other officers) | ||||||||||||
| Information about directors (and corporate auditors) | ||||||||||||
| Official title or position | 
                                                常勤監査役
                                                
                                             | 
                                                監査役
                                                
                                             | 
                                                専務取締役
専務執行役員
コンプライアンス委員会委員長
管理管掌
総務部長
                                                
                                             | 
                                                取締役
                                                
                                             | 
                                                監査役
                                                
                                             | 
                                                専務取締役
専務執行役員
営業管掌
建設事業部長
                                                
                                             | 
                                                取締役
執行役員
土木資材事業部長
                                                
                                             | — | 
                                                取締役
                                                
                                             | 
                                                代表取締役社長
執行役員社長
                                                
                                             | 
                                                取締役
                                                
                                             | 
                                                代表取締役会長
                                                
                                             | 
| Name | 
                                                堀口 康郎
                                                
                                             | 
                                                渡部 靖彦
                                                
                                             | 
                                                稲葉 朗
                                                
                                             | 
                                                佐野 裕
                                                
                                             | 
                                                五島 洋
                                                
                                             | 
                                                石田 裕宗
                                                
                                             | 
                                                石原 淳
                                                
                                             | — | 
                                                中桐 万里子(戸籍上の氏名:皆籐 万里子)
                                                
                                             | 
                                                田村 知幸
                                                
                                             | 
                                                榎本 麗美
(戸籍上の氏名:金澤 麗美)
                                                
                                             | 
                                                髙田 俊太
                                                
                                             | 
| Date of birth | 
                                                1962-10-24
                                                
                                             | 
                                                1952-07-25
                                                
                                             | 
                                                1964-06-28
                                                
                                             | 
                                                1950-03-05
                                                
                                             | 
                                                1971-06-08
                                                
                                             | 
                                                1969-02-18
                                                
                                             | 
                                                1961-06-20
                                                
                                             | — | 
                                                1974-12-02
                                                
                                             | 
                                                1970-02-14
                                                
                                             | 
                                                1983-02-13
                                                
                                             | 
                                                1968-02-10
                                                
                                             | 
| Career summary | — | |||||||||||
| Term of office | 
                                                (注)4
                                                
                                             | 
                                                (注)4
                                                
                                             | 
                                                (注)3
                                                
                                             | 
                                                (注)3
                                                
                                             | 
                                                (注)4
                                                
                                             | 
                                                (注)3
                                                
                                             | 
                                                (注)3
                                                
                                             | — | 
                                                (注)3
                                                
                                             | 
                                                (注)3
                                                
                                             | 
                                                (注)3
                                                
                                             | 
                                                (注)3
                                                
                                             | 
| Number of shares held (Ordinary shares) | 
                                                15,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                3,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                13,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                9,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                451,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                8,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                400,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             |