Semi-Annual Consolidated Balance Sheet
| Concept | As at 2023-12-31 | As at 2023-03-31 | 
|---|---|---|
| Semi-annual consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                642,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                504,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                140,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                88,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                6,907,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,397,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                3,835,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,900,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Buildings and structures | — | — | 
| Buildings and structures, net | 
                                                542,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                557,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Machinery, equipment and vehicles | — | — | 
| Machinery, equipment and vehicles, net | 
                                                591,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                649,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                2,503,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,503,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Leased assets | — | — | 
| Leased assets, net | 
                                                104,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                136,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                45,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                47,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                136,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                2,018,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,690,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                1,889,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,564,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                193,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                164,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -66,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -40,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                5,991,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,688,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                12,899,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,085,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retirement benefit asset | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Notes and accounts payable - trade | 
                                                1,399,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                1,618,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,405,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                35,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                41,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                123,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                173,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                59,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                5,232,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,717,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                562,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                676,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                70,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                96,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retirement benefit liability | 
                                                1,479,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,431,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                25,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                2,452,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,415,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                7,685,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,133,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for retirement benefits for directors (and other officers) | 
                                                22,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                46,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                132,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax liabilities | 
                                                292,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                163,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses for directors (and other officers) | 
                                                3,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                1,710,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,710,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                329,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                329,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                2,160,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,119,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -147,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -147,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                4,052,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,011,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                703,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                512,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                703,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                512,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-controlling interests | 
                                                457,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                428,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                5,213,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,952,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                12,899,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,085,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |