| Mar 31, 2013 | Mar 31, 2014 | Mar 31, 2015 | Mar 31, 2016 | Mar 31, 2017 | Mar 31, 2018 | Mar 31, 2019 | Mar 31, 2020 |
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| Net sales | 20,552 | 21,018 | 20,994 | 19,346 | 19,314 | 22,193 | 24,535 | 24,474 |
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| Cost of sales | 18,668 | 19,113 | 19,129 | 17,655 | 17,705 | 20,542 | 22,941 | 23,355 |
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| Gross profit (loss) | 1,883 | 1,906 | 1,866 | 1,690 | 1,609 | 1,652 | 1,594 | 1,119 |
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| Selling, general and administrative expenses | 1,208 | 1,179 | 1,151 | 1,092 | 1,119 | 1,182 | 1,245 | 1,226 |
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| Operating profit (loss) | 676 | 726 | 715 | 598 | 490 | 469 | 349 | -107 |
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| Interest income | 16 | 18 | 18 | 11 | 4 | 3 | 2 | 2 |
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| Dividend income | 6 | 12 | 17 | 26 | 22 | 20 | 19 | 14 |
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| Commission income | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 5 |
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| Gain on sales of non-current assets | - | - | 2 | 8 | 0 | 60 | 3 | 56 |
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| Gain on sales of scraps | 10 | 12 | 10 | 7 | 6 | 8 | 10 | 8 |
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| Other | 20 | 18 | 26 | 23 | 20 | 13 | 20 | 34 |
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| Non-operating income | 50 | 577 | 755 | 1,098 | 515 | 250 | 83 | 269 |
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| Interest expenses | 2 | 2 | 2 | - | - | - | - | 0 |
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| Commission for purchase of treasury shares | - | - | - | - | - | - | - | 23 |
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| Foreign exchange losses | - | - | - | 131 | 58 | 19 | 20 | 13 |
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| Loss on sales of non-current assets | - | 0 | 5 | 9 | 0 | - | 1 | 1 |
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| Loss on abandonment of non-current assets | 9 | 8 | 6 | 18 | 7 | 21 | 15 | 9 |
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| Depreciation | 7 | 9 | 13 | 8 | 3 | 2 | 3 | 7 |
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| Taxes and dues | 4 | 5 | 4 | 4 | 2 | 2 | 2 | 3 |
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| Other | 8 | 7 | 11 | 5 | 4 | 4 | 5 | 4 |
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| Non-operating expenses | 30 | 31 | 39 | 45 | 17 | 48 | 27 | 47 |
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| Ordinary profit (loss) | 696 | 1,272 | 1,430 | 1,651 | 988 | 671 | 405 | 115 |
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| Gain on liquidation of subsidiaries and associates | - | - | - | - | - | - | - | 82 |
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| Extraordinary income | - | 35 | 54 | - | - | - | - | 82 |
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| Impairment loss | 1 | 7 | 15 | 16 | 3 | 25 | 24 | - |
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| Loss on liquidation of subsidiaries and associates | - | - | - | - | - | - | 55 | - |
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| Extraordinary losses | 1 | 192 | 57 | 41 | 3 | 35 | 24 | - |
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| Profit (loss) before income taxes | 695 | 1,080 | 1,427 | 1,610 | 985 | 636 | 380 | 197 |
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| Income taxes - current | 207 | 156 | 298 | 174 | 152 | 94 | 40 | 69 |
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| Income taxes - deferred | -29 | 126 | 8 | 340 | -263 | 5 | 18 | 442 |
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| Income taxes | 171 | 282 | 307 | 514 | -111 | 99 | 57 | 511 |
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| Profit (loss) | - | - | 1,120 | 1,096 | 1,095 | 537 | 323 | -314 |
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| Profit (loss) attributable to non-controlling interests | - | - | 12 | 18 | 12 | 14 | -1 | - |
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| Profit (loss) attributable to owners of parent | - | - | 1,317 | 477 | 819 | 527 | 463 | -368 |
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