| 2024/3 | 2025/3 |
| Assets | | |
| Current assets | | |
| Cash and deposits | 11,999,958 | 12,013,854 |
| Notes and accounts receivable - trade, and contract assets | 2,120,759 | 2,410,493 |
| Electronically recorded monetary claims - operating | 470,905 | 236,902 |
| Merchandise and finished goods | 221,018 | 50,551 |
| Work in process | 1,602,234 | 1,861,511 |
| Raw materials and supplies | 665,970 | 715,923 |
| Advance payments to suppliers | 66,034 | 327,337 |
| Other | 224,411 | 409,967 |
| Allowance for doubtful accounts | -2,853 | -4,371 |
| Total current assets | 17,368,439 | 18,022,170 |
| Non-current assets | | |
| Property, plant and equipment | | |
| Buildings and structures, net | 658,172 | 640,317 |
| Machinery, equipment and vehicles, net | 255,679 | 196,247 |
| Land | 722,733 | 722,733 |
| Construction in progress | 43,081 | 53,947 |
| Other, net | 106,848 | 143,353 |
| Total property, plant and equipment | 1,786,515 | 1,756,599 |
| Intangible assets | | |
| Other | 34,410 | 31,181 |
| Total intangible assets | 34,410 | 31,181 |
| Investments and other assets | | |
| Investment securities | 1,342,160 | 1,079,200 |
| Deferred tax assets | 66,120 | 55,672 |
| Other | 390,595 | 345,408 |
| Allowance for doubtful accounts | -88,589 | -120,890 |
| Total investments and other assets | 1,710,286 | 1,359,390 |
| Total non-current assets | 3,531,213 | 3,147,171 |
| Total assets | 20,899,652 | 21,169,342 |
| Liabilities | | |
| Current liabilities | | |
| Notes and accounts payable - trade | 824,683 | 816,507 |
| Electronically recorded obligations - operating | 165,421 | 68,059 |
| Short-term borrowings | 200,000 | - |
| Current portion of long-term borrowings | 9,295 | 8,580 |
| Income taxes payable | 821,379 | 12,986 |
| Contract liabilities | 1,527,232 | 2,886,598 |
| Provision for bonuses | 248,943 | 217,726 |
| Provision for product warranties | 10,293 | 9,746 |
| Provision for loss on construction contracts | 59,491 | 124,022 |
| Other | 578,100 | 662,647 |
| Total current liabilities | 4,444,841 | 4,806,875 |
| Non-current liabilities | | |
| Long-term borrowings | 50,705 | 42,125 |
| Deferred tax liabilities | 157,551 | 153,343 |
| Other | 58,688 | 60,164 |
| Total non-current liabilities | 266,945 | 255,632 |
| Total liabilities | 4,711,786 | 5,062,507 |
| Net assets | | |
| Shareholders' equity | | |
| Share capital | 2,133,177 | 2,133,177 |
| Capital surplus | 2,572,667 | 2,572,667 |
| Retained earnings | 11,871,740 | 11,964,861 |
| Treasury shares | -1,166,501 | -1,166,575 |
| Total shareholders' equity | 15,411,084 | 15,504,131 |
| Accumulated other comprehensive income | | |
| Valuation difference on available-for-sale securities | 776,781 | 602,703 |
| Total accumulated other comprehensive income | 776,781 | 602,703 |
| Total net assets | 16,187,865 | 16,106,834 |
| Total liabilities and net assets | 20,899,652 | 21,169,342 |