| Concept |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balance sheet | |||||||||||||||||||||||||||||||||||||||
| Balance sheet | |||||||||||||||||||||||||||||||||||||||
| Assets | |||||||||||||||||||||||||||||||||||||||
| Non-current assets | — | — | — | — | — | — | — |
4,463,992,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,400,433,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Property, plant and equipment | — | — | — | — | — | — | — |
2,787,704,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,772,265,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Land | — | — | — | — | — | — | — |
1,256,079,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,256,079,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Buildings | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Buildings, net | — | — | — | — | — | — | — |
1,182,556,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,147,185,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Leased assets, net | — | — | — | — | — | — | — |
25,591,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
42,505,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Construction in progress | — | — | — | — | — | — | — |
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
50,160,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Structures | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Structures, net | — | — | — | — | — | — | — |
44,097,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
46,505,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Machinery and equipment | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Machinery and equipment, net | — | — | — | — | — | — | — |
212,061,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
157,336,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Accumulated depreciation | — | — | — | — | — | — | — |
-1,098,131,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
-983,730,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets | — | — | — | — | — | — | — |
82,497,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
100,786,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Software | — | — | — | — | — | — | — |
79,912,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
93,482,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Leasehold interests in land | — | — | — | — | — | — | — |
450,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
450,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other | — | — | — | — | — | — | — |
2,134,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,134,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other assets | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investment securities | — | — | — | — | — | — | — |
488,131,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
492,088,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Long-term prepaid expenses | — | — | — | — | — | — | — |
2,783,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,118,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — | — |
312,306,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
280,586,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments and other assets | — | — | — | — | — | — | — |
1,593,790,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,527,382,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments in capital | — | — | — | — | — | — | — |
130,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
130,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Guarantee deposits | — | — | — | — | — | — | — |
147,078,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
134,613,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other | — | — | — | — | — | — | — |
20,350,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
20,380,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets | — | — | — | — | — | — | — |
12,726,158,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
10,671,576,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and deposits | — | — | — | — | — | — | — |
5,812,420,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,570,100,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Notes receivable - trade | — | — | — | — | — | — | — |
446,310,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
62,913,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Accounts receivable - trade | — | — | — | — | — | — | — |
2,895,814,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,801,496,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Prepaid expenses | — | — | — | — | — | — | — |
33,158,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
26,620,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other | — | — | — | — | — | — | — |
5,366,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
6,143,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets | |||||||||||||||||||||||||||||||||||||||
| Contract assets | — | — | — | — | — | — | — |
1,434,375,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,275,207,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Work in process | — | — | — | — | — | — | — |
1,236,239,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,121,043,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Raw materials and supplies | — | — | — | — | — | — | — |
862,473,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
808,050,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | |||||||||||||||||||||||||||||||||||||||
| Property, plant and equipment | |||||||||||||||||||||||||||||||||||||||
| Own-used assets | |||||||||||||||||||||||||||||||||||||||
| Leased assets | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Tools, furniture and fixtures | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Tools, furniture and fixtures, net | — | — | — | — | — | — | — |
62,736,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
66,968,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Vehicles | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Vehicles, net | — | — | — | — | — | — | — |
4,580,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
5,522,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets | |||||||||||||||||||||||||||||||||||||||
| Other intangible assets | |||||||||||||||||||||||||||||||||||||||
| Investments and other assets | |||||||||||||||||||||||||||||||||||||||
| Investments in capital of subsidiaries and associates | — | — | — | — | — | — | — |
19,430,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
19,430,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other assets | |||||||||||||||||||||||||||||||||||||||
| Assets | — | — | — | — | — | — | — |
17,190,150,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
15,072,009,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other assets | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other assets | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | |||||||||||||||||||||||||||||||||||||||
| Current liabilities | |||||||||||||||||||||||||||||||||||||||
| Notes payable - trade | — | — | — | — | — | — | — |
1,177,887,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,051,011,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Accounts payable - trade | — | — | — | — | — | — | — |
931,382,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
942,746,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Advances received | — | — | — | — | — | — | — |
604,742,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
320,800,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Accounts payable - other | — | — | — | — | — | — | — |
15,093,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
50,054,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Lease liabilities | — | — | — | — | — | — | — |
14,323,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
18,481,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Accrued expenses | — | — | — | — | — | — | — |
689,700,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
589,630,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Income taxes payable | — | — | — | — | — | — | — |
990,605,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
783,903,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other | — | — | — | — | — | — | — |
48,927,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
65,548,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — | — |
4,962,623,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
5,219,968,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Accrued consumption taxes | — | — | — | — | — | — | — |
368,457,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
145,084,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | |||||||||||||||||||||||||||||||||||||||
| Non-current liabilities | — | — | — | — | — | — | — |
740,130,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
728,463,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Lease liabilities | — | — | — | — | — | — | — |
14,115,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
29,133,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Asset retirement obligations | — | — | — | — | — | — | — |
34,697,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
34,514,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Provision for retirement benefits | — | — | — | — | — | — | — |
194,691,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
168,187,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Long-term accounts payable - other | — | — | — | — | — | — | — |
496,627,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
496,627,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Provisions | |||||||||||||||||||||||||||||||||||||||
| Liabilities | — | — | — | — | — | — | — |
5,702,753,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
5,948,432,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other liabilities | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other liabilities | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities and net assets | |||||||||||||||||||||||||||||||||||||||
| Shareholders' equity | — | — | — | — | — | — | — |
11,341,679,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8,964,868,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share capital | — | — | — | — | — | — | — |
1,105,524,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,082,117,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Capital surplus | — | — | — | — | — | — | — |
957,410,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
934,116,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Legal capital surplus | — | — | — | — | — | — | — |
957,410,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
934,116,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — | — |
9,395,410,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
6,948,739,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Legal retained earnings | — | — | — | — | — | — | — |
35,750,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
35,750,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other retained earnings | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings brought forward | — | — | — | — | — | — | — |
9,309,660,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
6,862,989,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — | — | — | — | — | — |
-116,665,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
-104,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Valuation and translation adjustments | — | — | — | — | — | — | — |
145,717,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
158,709,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Valuation difference on available-for-sale securities | — | — | — | — | — | — | — |
145,589,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
158,801,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred gains or losses on hedges | — | — | — | — | — | — | — |
128,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
-92,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Net assets |
11,341,679,000
JPY
|
9,395,410,000
JPY
|
50,000,000
JPY
|
35,750,000
JPY
|
9,309,660,000
JPY
|
1,105,524,000
JPY
|
-116,665,000
JPY
|
11,487,397,000
JPY
|
957,410,000
JPY
|
128,000
JPY
|
145,589,000
JPY
|
145,717,000
JPY
|
957,410,000
JPY
|
8,964,868,000
JPY
|
934,116,000
JPY
|
934,116,000
JPY
|
50,000,000
JPY
|
-104,000
JPY
|
6,948,739,000
JPY
|
158,801,000
JPY
|
158,709,000
JPY
|
-92,000
JPY
|
1,082,117,000
JPY
|
35,750,000
JPY
|
9,123,577,000
JPY
|
6,862,989,000
JPY
|
1,067,243,000
JPY
|
5,406,097,000
JPY
|
50,000,000
JPY
|
60,514,000
JPY
|
7,538,933,000
JPY
|
919,353,000
JPY
|
919,353,000
JPY
|
-24,000
JPY
|
7,478,418,000
JPY
|
61,942,000
JPY
|
-1,427,000
JPY
|
5,491,847,000
JPY
|
35,750,000
JPY
|
| Liabilities and net assets | — | — | — | — | — | — | — |
17,190,150,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
15,072,009,000
JPY
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Net assets | |||||||||||||||||||||||||||||||||||||||
| Valuation and translation adjustments | |||||||||||||||||||||||||||||||||||||||
| Shareholders' equity | |||||||||||||||||||||||||||||||||||||||
| Capital surplus | |||||||||||||||||||||||||||||||||||||||
| Retained earnings | |||||||||||||||||||||||||||||||||||||||
| Other retained earnings |