| Jul 31,
2017 | Jul 31,
2018 | Jul 31,
2019 | Jul 31,
2020 | Jun 30,
2021 | Jun 30,
2022 | Jun 30,
2023 |
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| Net sales | 22,759 | 28,890 | 32,176 | 33,000 | 32,570 | 41,966 | 48,799 |
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| Cost of sales | 12,726 | 15,189 | 17,530 | 18,583 | 21,284 | 27,308 | 31,893 |
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| Gross profit (loss) | 10,033 | 13,701 | 14,646 | 14,417 | 11,286 | 14,658 | 16,906 |
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| Selling, general and administrative expenses | 9,727 | 10,771 | 11,587 | 11,706 | 10,941 | 11,267 | 13,520 |
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| Operating profit (loss) | 306 | 2,930 | 3,059 | 2,711 | 345 | 3,391 | 3,386 |
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| Interest and dividend income | 2 | 4 | 34 | 60 | 29 | 30 | 250 |
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| Share of profit of entities accounted for using equity method | - | - | - | - | - | 31 | 15 |
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| Foreign exchange gains | 5 | 33 | - | - | 130 | 565 | 195 |
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| Subsidy income | 11 | 60 | 25 | 150 | 248 | 1,182 | 737 |
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| Reversal of allowance for doubtful accounts | 5 | - | - | - | - | - | - |
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| Other | 6 | 6 | 1 | 4 | 19 | 28 | 23 |
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| Subsidy income | 11 | 60 | 25 | 150 | 248 | 1,182 | 737 |
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| Non-operating income | 54 | 102 | 59 | 214 | 426 | 1,835 | 1,221 |
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| Other | 6 | 6 | 1 | 4 | 19 | 28 | 23 |
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| Non-operating income | 54 | 102 | 59 | 214 | 426 | 1,835 | 1,221 |
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| Interest expenses and interest on bonds | - | - | - | - | - | 69 | 70 |
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| Interest expenses paid on loans and bonds | 19 | 18 | 23 | 43 | - | - | - |
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| Amortization of share issuance costs | - | - | 4 | 12 | 10 | 11 | 5 |
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| Bond issuance costs | - | - | - | - | 15 | - | 18 |
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| Bond issuance costs | - | - | - | - | 15 | - | 18 |
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| Provision of allowance for doubtful accounts | - | - | - | 20 | - | - | - |
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| Other | 3 | 3 | 10 | 6 | 3 | 33 | 10 |
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| Non-operating expenses | 37 | 36 | 87 | 169 | 187 | 113 | 103 |
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| Ordinary profit (loss) | 324 | 2,996 | 3,031 | 2,755 | 583 | 5,113 | 4,504 |
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| Gain on sale of investment securities | 22 | 8 | - | - | - | - | 110 |
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| Extraordinary income | 22 | 8 | - | 36 | - | - | 110 |
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| Loss on sale of shares of subsidiaries and associates | - | - | - | - | - | - | 94 |
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| Loss on valuation of investment securities | - | 55 | - | - | 275 | 90 | - |
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| Loss on valuation of investment securities | - | 55 | - | - | 275 | 90 | - |
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| Loss on valuation of shares of subsidiaries and associates | - | - | - | - | - | - | 82 |
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| Loss on valuation of shares of subsidiaries and associates | - | - | - | - | - | - | 82 |
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| Impairment losses | - | 40 | 4 | - | 354 | 149 | 995 |
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| Impairment losses | - | 40 | 4 | - | 354 | 149 | 995 |
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| Extraordinary losses | 39 | 95 | 7 | 32 | 629 | 240 | 1,171 |
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| Extraordinary losses | 39 | 95 | 7 | 32 | 629 | 240 | 1,171 |
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| Profit (loss) before income taxes | 307 | 2,909 | 3,024 | 2,759 | -45 | 4,873 | 3,443 |
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| Income taxes - current | 201 | 1,172 | 1,108 | 1,198 | 339 | 1,606 | 1,779 |
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| Income taxes - deferred | 32 | -146 | -65 | -42 | -103 | -204 | -433 |
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| Income taxes | 233 | 1,025 | 1,043 | 1,156 | 235 | 1,402 | 1,346 |
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| Profit (loss) | 74 | 1,884 | 1,981 | 1,603 | -281 | 3,471 | 2,096 |
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| Profit (loss) attributable to non-controlling interests | 97 | 246 | 181 | 52 | 4 | -37 | 46 |
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| Profit (loss) attributable to owners of parent | -22 | 1,637 | 1,800 | 1,551 | -285 | 3,508 | 2,051 |
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