| Mar 31, 2017 | Mar 31, 2018 | Mar 31, 2019 | Mar 31, 2020 | Mar 31, 2021 | Mar 31, 2022 | Mar 31, 2023 | Mar 31, 2024 |
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Cash and deposits | - | 1,603 | 2,031 | 3,313 | 4,439 | 5,193 | 6,041 | 8,047 |
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Notes and accounts receivable - trade | - | 248 | 441 | 176 | 244 | 211 | 282 | 1,600 |
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Accounts receivable - trade | - | - | - | - | - | 211 | 282 | 1,600 |
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Work in process | - | 5 | 8 | - | - | - | 1 | 19 |
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Advance payments to suppliers | - | 228 | 104 | 83 | 13 | - | 145 | 140 |
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Supplies | - | - | - | - | - | - | - | 2 |
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Prepaid expenses | - | - | - | - | - | - | 30 | 31 |
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Other | - | 18 | 10 | 60 | 163 | 279 | 383 | 679 |
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Allowance for doubtful accounts | - | -0 | - | - | - | - | - | -3 |
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Current assets | - | 2,101 | 2,594 | 3,631 | 4,846 | 5,682 | 6,708 | 10,344 |
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Buildings, net | - | - | - | - | - | - | 1 | 82 |
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Buildings and structures, net | - | 15 | 16 | 8 | 3 | 2 | 1 | 93 |
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Tools, furniture and fixtures, net | - | 5 | 12 | 13 | 22 | 16 | 12 | 59 |
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Property, plant and equipment | - | 20 | 28 | 21 | 25 | 18 | 12 | 152 |
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Goodwill | - | 126 | 110 | 94 | 78 | 62 | 46 | 266 |
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Software | - | 314 | 320 | 329 | 480 | 622 | 727 | 1,639 |
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Other | - | 2 | 2 | 53 | 5 | 0 | 8 | 96 |
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Intangible assets | - | 442 | 433 | 476 | 562 | 684 | 781 | 2,000 |
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Deferred tax assets | - | - | 24 | 41 | 83 | 91 | 186 | 202 |
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Shares of subsidiaries and associates | - | - | - | - | - | - | 30 | 1,580 |
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Guarantee deposits | - | - | - | - | - | - | 135 | 294 |
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Deferred tax assets | - | - | 24 | 41 | 83 | 91 | 186 | 202 |
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Other | - | 53 | 57 | 78 | 77 | 74 | 135 | 171 |
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Guarantee deposits | - | - | - | - | - | - | 135 | 294 |
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Investments and other assets | - | 83 | 81 | 119 | 160 | 166 | 320 | 667 |
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Other | - | 53 | 57 | 78 | 77 | 74 | 135 | 171 |
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Investments and other assets | - | 83 | 81 | 119 | 160 | 166 | 320 | 667 |
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Non-current assets | - | 544 | 542 | 616 | 747 | 868 | 1,114 | 2,819 |
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Assets | - | 2,646 | 3,136 | 4,247 | 5,593 | 6,550 | 7,821 | 13,163 |
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Notes and accounts payable - trade | - | 344 | 566 | 506 | 641 | 701 | 873 | 2,974 |
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Accounts payable - trade | - | - | - | - | - | - | 872 | 897 |
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Accounts payable - other | - | 601 | 810 | 1,113 | 1,836 | 2,352 | 2,647 | 3,780 |
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Income taxes payable | - | 17 | 49 | 121 | 159 | 153 | 191 | 148 |
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Accrued expenses | - | - | - | - | - | - | 23 | 32 |
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Provision for bonuses | - | 21 | 18 | 59 | 66 | 87 | 85 | 249 |
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Income taxes payable | - | 17 | 49 | 121 | 159 | 153 | 191 | 148 |
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Provision for bonuses for directors (and other officers) | - | - | - | - | 17 | 26 | 32 | 27 |
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Provision for bonuses | - | 21 | 18 | 59 | 66 | 87 | 85 | 249 |
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Other | - | 35 | 44 | 33 | 47 | 51 | 47 | 325 |
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Provision for bonuses for directors (and other officers) | - | - | - | - | 17 | 26 | 32 | 27 |
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Current liabilities | - | 1,330 | 1,630 | 1,930 | 2,780 | 3,370 | 3,876 | 7,503 |
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Other | - | 35 | 44 | 33 | 47 | 51 | 47 | 325 |
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Current liabilities | - | 1,330 | 1,630 | 1,930 | 2,780 | 3,370 | 3,876 | 7,503 |
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Long-term accounts payable - other | - | - | - | - | - | - | 260 | 280 |
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Provision for retirement benefits | - | - | - | - | - | - | 98 | 92 |
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Retirement benefit liability | - | 56 | 58 | 71 | 88 | 95 | 112 | 103 |
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Non-current liabilities | - | 107 | 163 | 196 | 235 | 260 | 371 | 505 |
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Other | - | - | - | - | - | - | - | 122 |
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Non-current liabilities | - | 107 | 163 | 196 | 235 | 260 | 371 | 505 |
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Liabilities | - | 1,436 | 1,792 | 2,126 | 3,015 | 3,630 | 4,247 | 8,008 |
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Share capital | - | 820 | 820 | 1,113 | 1,153 | 1,192 | 1,199 | 1,219 |
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Legal capital surplus | - | - | - | - | - | - | 735 | 755 |
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Other capital surplus | - | - | - | - | - | - | 3 | 6 |
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Capital surplus | - | 753 | 356 | 650 | 689 | 729 | 738 | 762 |
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Capital surplus | - | 753 | 356 | 650 | 689 | 729 | 738 | 762 |
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Retained earnings brought forward | - | - | - | - | - | - | 1,710 | 2,341 |
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Retained earnings | - | -365 | 161 | 358 | 735 | 1,218 | 1,849 | 2,380 |
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Retained earnings | - | -365 | 161 | 358 | 735 | 1,218 | 1,849 | 2,380 |
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Treasury shares | - | - | - | - | - | -219 | -212 | -308 |
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Shareholders' equity | - | 1,207 | 1,337 | 2,121 | 2,578 | 2,920 | 3,574 | 4,052 |
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Net assets | 827 | 1,209 | 1,344 | 2,121 | 2,578 | 2,920 | 3,574 | 5,155 |
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Valuation difference on available-for-sale securities | - | - | - | - | - | - | - | -0 |
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Valuation and translation adjustments | - | 1 | 1 | - | - | - | - | -0 |
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Non-controlling interests | - | 1 | 6 | - | - | - | - | 1,103 |
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Net assets | 827 | 1,209 | 1,344 | 2,121 | 2,578 | 2,920 | 3,574 | 5,155 |
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Liabilities and net assets | - | 2,646 | 3,136 | 4,247 | 5,593 | 6,550 | 7,821 | 13,163 |
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