| Sep 30, 2020 | Sep 30, 2021 | Sep 30, 2022 | Sep 30, 2023 |
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Cash and deposits | - | 585 | 601 | 1,077 |
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Accounts receivable - trade | - | 170 | 157 | 214 |
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Work in process | - | 49 | 76 | 36 |
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Supplies | - | 0 | 0 | - |
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Advance payments to suppliers | - | - | - | 1 |
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Prepaid expenses | - | 18 | 23 | 22 |
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Other | - | 0 | 2 | 6 |
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Current assets | - | 822 | 858 | 1,356 |
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Buildings | - | 20 | 20 | 20 |
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Accumulated depreciation | - | -8 | -8 | -9 |
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Buildings, net | - | 13 | 12 | 11 |
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Tools, furniture and fixtures | - | 25 | 18 | 17 |
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Accumulated depreciation | - | -19 | -12 | -14 |
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Tools, furniture and fixtures, net | - | 6 | 5 | 3 |
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Property, plant and equipment | - | 19 | 17 | 14 |
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Trademark right | - | 0 | 0 | 0 |
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Software | - | 7 | 4 | 3 |
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Intangible assets | - | 7 | 4 | 3 |
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Investment securities | - | - | 0 | 0 |
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Investments in capital | - | 0 | 0 | - |
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Long-term prepaid expenses | - | 1 | 0 | 0 |
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Insurance funds | - | 39 | 43 | 47 |
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Deferred tax assets | - | 13 | 25 | 16 |
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Other | - | 25 | 25 | 25 |
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Investments and other assets | - | 78 | 93 | 89 |
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Non-current assets | - | 103 | 115 | 106 |
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Assets | - | 925 | 972 | 1,462 |
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Accounts payable - trade | - | 19 | 45 | 33 |
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Current portion of long-term borrowings | - | 122 | 97 | 101 |
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Accounts payable - other | - | 31 | 78 | 73 |
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Accrued expenses | - | 17 | 23 | 23 |
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Income taxes payable | - | 17 | 34 | 21 |
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Accrued consumption taxes | - | 36 | 21 | 25 |
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Advances received | - | 2 | 11 | - |
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Unearned revenue | - | 1 | 6 | 6 |
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Deposits received | - | 8 | 5 | 14 |
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Current liabilities | - | 254 | 319 | 297 |
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Long-term borrowings | - | 427 | 329 | 229 |
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Asset retirement obligations | - | 9 | 9 | 9 |
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Non-current liabilities | - | 436 | 339 | 238 |
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Liabilities | - | 690 | 658 | 535 |
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Share capital | - | 10 | 10 | 279 |
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Legal capital surplus | - | - | - | 269 |
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Capital surplus | - | - | - | 269 |
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Retained earnings brought forward | - | 225 | 305 | 379 |
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Retained earnings | - | 225 | 305 | 379 |
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Shareholders' equity | - | 235 | 315 | 927 |
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Valuation difference on available-for-sale securities | - | - | -0 | -0 |
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Valuation and translation adjustments | - | - | -0 | -0 |
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Net assets | 204 | 235 | 315 | 927 |
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Liabilities and net assets | - | 925 | 972 | 1,462 |
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