| Dec 31,
2018 | Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 |
|---|
| Profit (loss) before income taxes | 426 | 1,358 | 1,569 | 1,457 | 1,197 | 1,076 |
|---|
| Depreciation | 266 | 230 | 245 | 248 | 240 | 259 |
|---|
| Amortization of goodwill | - | 21 | 30 | 30 | 23 | 23 |
|---|
| Impairment losses | 268 | - | - | 153 | 159 | 225 |
|---|
| Subsidy income | -13 | -24 | -203 | -138 | -43 | -7 |
|---|
| Surrender value of insurance policies | - | - | - | - | - | -138 |
|---|
| Interest expenses | 22 | 30 | 27 | 18 | 11 | 11 |
|---|
| Increase (decrease) in provision for bonuses | - | -73 | 4 | -10 | -44 | 77 |
|---|
| Increase (decrease) in allowance for doubtful accounts | 2 | 2 | 9 | 12 | 8 | 19 |
|---|
| Decrease (increase) in trade receivables | -325 | -113 | -232 | -14 | -368 | -587 |
|---|
| Increase (decrease) in accounts payable - other | 137 | 67 | 90 | 52 | -1 | 155 |
|---|
| Increase (decrease) in advances received | -163 | 47 | 37 | 1 | -24 | - |
|---|
| Other, net | 322 | -159 | 9 | 14 | -168 | -12 |
|---|
| Subtotal | 669 | 1,449 | 1,469 | 1,879 | 989 | 1,102 |
|---|
| Interest paid | -22 | -30 | -27 | -18 | -11 | -11 |
|---|
| Subsidies received | 13 | 24 | 203 | 138 | 35 | 15 |
|---|
| Income taxes refund | - | 70 | 16 | - | 46 | 93 |
|---|
| Income taxes paid | -320 | -161 | -562 | -669 | -709 | -428 |
|---|
| Net cash provided by (used in) operating activities | 19 | 1,295 | 1,082 | 1,276 | 304 | 771 |
|---|
| Proceeds from subsidy income | 777 | 329 | 775 | 320 | 688 | 957 |
|---|
| Purchase of property, plant and equipment | -1,041 | -693 | -795 | -758 | -1,641 | -1,596 |
|---|
| Purchase of intangible assets | -17 | -135 | -136 | -65 | -125 | -44 |
|---|
| Payments of leasehold and guarantee deposits | -62 | -78 | -118 | -151 | -74 | -266 |
|---|
| Proceeds from repayment of lease and guarantee deposits | 6 | 23 | 10 | 11 | 8 | 12 |
|---|
| Proceeds from cancellation of insurance funds | - | - | - | - | - | 135 |
|---|
| Other, net | -6 | -19 | -10 | -47 | -64 | -26 |
|---|
| Net cash provided by (used in) investing activities | -399 | -716 | -274 | -690 | -1,208 | -827 |
|---|
| Net increase (decrease) in short-term borrowings | 339 | -55 | 266 | -850 | - | 600 |
|---|
| Proceeds from long-term borrowings | 2,155 | 1,500 | 1,100 | - | - | 1,300 |
|---|
| Repayments of long-term borrowings | -870 | -1,169 | -1,867 | -1,160 | -809 | -694 |
|---|
| Repayments of lease liabilities | -6 | -6 | -8 | -9 | -6 | -5 |
|---|
| Dividends paid | -174 | -204 | -246 | -338 | -387 | -387 |
|---|
| Other, net | - | - | - | - | - | - |
|---|
| Net cash provided by (used in) financing activities | 1,377 | 68 | 3,256 | -2,358 | -1,204 | 815 |
|---|
| Net increase (decrease) in cash and cash equivalents | 997 | 647 | 4,064 | -1,772 | -2,109 | 759 |
|---|