Balance Sheet
| Concept | As at 2024-06-30 | As at 2023-12-31 | 
|---|---|---|
| Balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                3,031,737,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,860,928,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                360,631,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                416,385,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                10,303,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,770,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Inventories | 
                                                2,739,614,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,806,218,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                2,368,679,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,379,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -65,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -65,102,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,320,394,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,076,921,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                10,091,535,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,080,119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Property, plant and equipment | 
                                                8,658,176,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,841,956,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other, net | 
                                                2,537,400,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,362,073,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Own-used assets | ||
| Intangible assets | 
                                                662,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                721,268,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Goodwill | 
                                                589,870,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                632,813,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                72,967,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                88,454,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Other intangible assets | ||
| Investments and other assets | 
                                                5,741,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,070,618,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -17,266,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -17,510,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,889,968,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,368,521,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Non-current assets | 
                                                15,062,091,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,633,843,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | — | — | 
| Other assets | ||
| Assets | 
                                                25,153,627,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,713,962,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                1,260,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,010,086,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts payable - other | 
                                                1,159,502,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,432,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current portion of long-term borrowings | 
                                                1,332,865,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,292,728,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                783,342,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                454,644,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                18,921,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,490,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,997,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,953,100,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                8,472,467,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,062,667,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Provision for bonuses | 
                                                166,935,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                146,104,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                2,676,548,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,148,234,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                4,430,551,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,894,384,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                762,019,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                774,490,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                899,773,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                882,445,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                12,903,019,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,957,052,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Other liabilities | — | — | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                10,584,255,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,404,174,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                3,313,074,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,313,074,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                3,184,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,180,584,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                4,845,335,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,696,616,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -758,380,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -786,102,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                1,033,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                880,101,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                -30,410,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred gains or losses on hedges | 
                                                1,073,645,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                881,364,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                12,250,608,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,756,910,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                25,153,627,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,713,962,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Capital surplus | ||
| Retained earnings | ||
| Valuation and translation adjustments |