| Mar 31,
2020 | Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 | Mar 31,
2024 |
|---|
| Profit (loss) before income taxes | 74 | 269 | 516 | 1,275 | -87 |
|---|
| Depreciation | 160 | 195 | 231 | 317 | 451 |
|---|
| Share-based payment expenses | - | - | - | - | 12 |
|---|
| Increase (decrease) in provision for bonuses | 2 | 5 | 13 | -1 | -6 |
|---|
| Increase (decrease) in provision for bonuses for directors (and other officers) | 1 | 9 | 8 | 7 | -25 |
|---|
| Increase (decrease) in provision for retirement benefits | 0 | 0 | 0 | 9 | 4 |
|---|
| Interest income | -0 | -0 | -0 | -2 | -12 |
|---|
| Interest expenses | 3 | 11 | 11 | 4 | 2 |
|---|
| Listing expenses | - | - | 5 | 11 | - |
|---|
| Share issuance costs | - | - | 0 | 15 | 1 |
|---|
| Foreign exchange losses (gains) | -1 | -11 | -13 | -13 | -106 |
|---|
| Loss (gain) on sale of property, plant and equipment | - | -2 | -1 | - | -13 |
|---|
| Loss on retirement of property, plant and equipment | 0 | 4 | 12 | 6 | 3 |
|---|
| Decrease (increase) in trade receivables | -43 | -37 | -37 | -91 | 134 |
|---|
| Decrease (increase) in inventories | -6 | 4 | -67 | -284 | -619 |
|---|
| Increase (decrease) in trade payables | 4 | 0 | 8 | 5 | -20 |
|---|
| Decrease (increase) in consumption taxes refund receivable | -21 | 12 | -3 | 0 | 22 |
|---|
| Increase (decrease) in accounts payable - other | 18 | 4 | 15 | 30 | -22 |
|---|
| Increase (decrease) in advances received | 5 | -8 | 1 | -2 | 1 |
|---|
| Other, net | 7 | 7 | 2 | 26 | -20 |
|---|
| Subtotal | 202 | 463 | 702 | 1,312 | -301 |
|---|
| Interest received | 0 | 0 | 0 | 2 | 12 |
|---|
| Interest paid | -3 | -11 | -11 | -4 | -2 |
|---|
| Income taxes paid | -7 | -12 | -56 | -126 | -339 |
|---|
| Net cash provided by (used in) operating activities | 192 | 441 | 635 | 1,184 | -631 |
|---|
| Purchase of property, plant and equipment | -428 | -402 | -534 | -1,884 | -828 |
|---|
| Proceeds from sale of property, plant and equipment | - | 2 | 4 | - | 30 |
|---|
| Purchase of intangible assets | -6 | -2 | -1 | -2 | -0 |
|---|
| Purchase of shares of subsidiaries and associates | - | - | - | - | -110 |
|---|
| Net cash provided by (used in) investing activities | -434 | -401 | -545 | -1,887 | -909 |
|---|
| Repayments of long-term borrowings | -24 | -50 | -202 | -90 | -118 |
|---|
| Proceeds from issuance of shares | 83 | 486 | - | 1,937 | - |
|---|
| Proceeds from issuance of shares resulting from exercise of share acquisition rights | - | - | 35 | 25 | - |
|---|
| Payments for issuance of shares | - | - | - | - | -1 |
|---|
| Purchase of treasury shares | - | - | - | -2 | - |
|---|
| Payments of listing expenses | - | - | -7 | -9 | - |
|---|
| Net cash provided by (used in) financing activities | 309 | 526 | 16 | 1,862 | -118 |
|---|
| Effect of exchange rate change on cash and cash equivalents | 1 | 11 | 13 | 13 | 106 |
|---|
| Net increase (decrease) in cash and cash equivalents | 68 | 576 | 119 | 1,173 | -1,551 |
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