| Mar 31, 2014 | Mar 31, 2015 | Mar 31, 2016 | Mar 31, 2017 | Mar 31, 2018 | Mar 31, 2019 | Mar 31, 2020 | Mar 31, 2021 | Mar 31, 2022 | Mar 31, 2023 |
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Net (loss) income | 1 | 1 | 1 | 1 | 2 | -1 | 1 | -0 | 0 | -0 |
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Depreciation of property, plant and equipment | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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Amortization of operating lease right-of-use assets | - | - | - | - | - | - | 1 | 1 | 1 | 1 |
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Expected credit loss provision | - | - | - | - | - | - | - | - | 0 | 1 |
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Write-down of inventories | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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Gain on disposal of property, plant and equipment | -0 | 0 | - | - | 0 | 0 | 0 | 0 | 0 | 0 |
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Share-based compensation expenses | - | - | - | - | - | - | 0 | 0 | 0 | 0 |
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Accounts receivable | -1 | -0 | 1 | -1 | -1 | 0 | -0 | -1 | 1 | 0 |
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Deferred tax | - | - | - | - | - | - | - | 0 | -0 | -0 |
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Inventories | - | - | - | - | - | - | 1 | 0 | 0 | -1 |
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Prepaid expenses and other current assets | -0 | -0 | -0 | -0 | -0 | -0 | -0 | 0 | 0 | -0 |
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Accounts payable | 0 | 0 | -0 | 1 | -2 | 0 | -0 | -0 | 0 | 0 |
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Accrued expenses and other current liabilities | 0 | 1 | 0 | 0 | 1 | -1 | -1 | -0 | 0 | -0 |
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Operating lease liabilities | - | - | - | - | - | - | -1 | -1 | -1 | -1 |
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Income tax payable | 0 | 0 | 0 | -0 | 0 | -0 | 0 | -1 | 1 | -0 |
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Income tax recoverable | - | - | - | - | - | - | - | - | 0 | -0 |
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Long-term accrued expenses | - | - | - | - | - | - | - | - | - | 0 |
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Long-term deposits | 0 | -0 | 0 | -0 | - | -0 | 0 | 0 | -0 | 0 |
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Net cash (used in) provided by operating activities | - | - | - | - | 2 | -0 | 0 | -0 | -0 | 1 |
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(Placement)/Withdrawal of time deposits | - | - | - | - | - | -0 | - | - | -1 | 1 |
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Disposal of a subsidiary | - | - | - | - | - | - | - | - | - | - |
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Purchase of property, plant and equipment | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
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Proceeds from disposal of property, plant and equipment | 0 | 0 | 0 | - | 0 | 0 | 0 | 0 | 0 | 0 |
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Net cash (used in) provided by investing activities | - | - | - | - | -0 | -1 | -0 | -0 | -1 | 1 |
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Shares issued | - | - | - | - | - | - | - | - | - | 0 |
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Share options exercised | - | 0 | - | - | - | - | - | 0 | 0 | 0 |
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Cash dividends paid | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 |
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Net cash used in financing activities | - | - | - | - | -1 | -1 | - | -1 | -1 | -1 |
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Net (decrease) increase in cash and cash equivalents | - | - | - | - | - | - | 0 | -1 | -2 | 1 |
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Effect of exchange rate changes on cash and cash equivalents | - | - | - | - | - | - | - | - | 0 | 0 |
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Income taxes | - | - | - | - | - | - | - | - | - | -0 |
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