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INCOME TAXES (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2025
INCOME TAXES |
Summary of income before income taxes | ​
​ | ​ | ​
​ | ​ | Year Ended December 31,
​ | ​ ​ ​ | 2025
PRC Mainland | ​ | 7,134
Germany |  | 52
Others |  | 116
Total |  | 7,302
​
​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended December 31,
​ | ​ ​ ​ | 2023 | ​ ​ ​ | 2024
PRC Mainland, Hong Kong and Taiwan | ​ | 5,833 | ​ | 5,414
Germany |  | (463) |  | (857)
Others |  | (21) |  | 248
Total |  | 5,349 |  | 4,805
Schedule of tax expense (benefit) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended December 31,
​ | ​ ​ ​ | 2023 | ​ ​ ​ | 2024 | ​ ​ ​ | 2025
Current Tax |  | 1,175 |  | 1,549 |  | 2,014
Deferred Tax |  | 29 |  | 113 |  | 147
Total |  | 1,204 |  | 1,662 |  | 2,161
Schedule of a reconciliation between the effective income tax rate and PRC statutory income tax rate | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, |
​ | ​ | 2025 |
​ | ​ ​ ​ | Amount | ​ ​ ​ | Percent |
Tax at PRC Mainland statutory tax rate | ​ | 1,825 |  | 25.00 | %
Foreign Tax Effects |  | ​ |  | ​ | ​
Hong Kong |  | ​ |  | ​ | ​
Statutory tax rate difference |  | (214) |  | (2.93) | %
Germany |  | ​ |  | ​ | ​
Changes in Valuation Allowance |  | (139) |  | (1.91) | %
Effect of tax rate adjustment |  | 131 |  | 1.79 | %
Other |  | 24 |  | 0.33 | %
Other foreign jurisdictions |  | 70 |  | 0.96 | %
Effect of cross-border tax laws | ​ | ​ | ​ | ​ | ​
Withholding Tax | ​ | 313 | ​ | 4.29 | %
Research and development expenses super deduction |  | (84) |  | (1.15) | %
Valuation allowance |  | 131 |  | 1.80 | %
Nontaxable or nondeductible items |  | ​ |  | ​ | ​
Share based compensation |  | 105 |  | 1.44 | %
Other nontaxable nondeductible items | ​ | 4 | ​ | 0.06 | %
Other |  | (5) |  | (0.08) | %
Effective tax rate |  | 2,161 |  | 29.60 | %
​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended December 31, | ​
​ | ​ ​ ​ | 2023 | ​ ​ ​ | 2024 | ​
PRC Mainland statutory tax rate |  | 25 | % | 25 | %
Tax effect of non-deductible expenses and non-taxable income in determining taxable profit |  | 2 | % | 4 | %
Effect of different tax rate of group entities operating in other jurisdictions |  | (4) | % | (2) | %
Effect of change in valuation allowance |  | (0) | % | 1 | %
Effect of tax holiday |  | (1) | % | (1) | %
Effect of cash dividends |  | 1 | % | 8 | %
Effective tax rate |  | 23 | % | 35 | %
Schedule of income taxes paid by the company | ​
​ | ​ | ​
​ | ​ | Year Ended December 31,
​ | ​ ​ ​ | 2025
PRC Mainland | ​ | 1,631
Foreign |  | 1
Income taxes, net of amounts refunded |  | 1,632
Schedule of the aggregate amount and per share effect of the tax credits | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended December 31,
​ | ​ ​ ​ | 2023 | ​ ​ ​ | 2024 | ​ ​ ​ | 2025
Aggregate amount |  | 60 |  | 47 |  | 98
Per share effect—basic |  | 0.02 |  | 0.02 |  | 0.03
Per share effect—diluted |  | 0.02 |  | 0.02 |  | 0.03
Schedule of the principal components of the Group's deferred income tax assets and liabilities | ​
​ | ​ | ​ | ​ | ​
​ | ​ | As of December 31,
​ | ​ ​ ​ | 2024 | ​ ​ ​ | 2025
Deferred tax assets: |  | ​ |  | ​
Net loss carryforward |  | 1,091 | ​ | 1,105
Deferred revenue |  | 562 | ​ | 674
Long-term assets |  | 485 | ​ | 377
Bad debt provision |  | 80 | ​ | 92
Accrued payroll |  | 110 | ​ | 97
Others |  | 121 | ​ | 150
Valuation allowance |  | (718) | ​ | (655)
Total deferred tax assets, net of valuation allowance |  | 1,731 | ​ | 1,840
Deferred tax liabilities: |  | ​ | ​ | ​
Fair value adjustment for building, land use rights and identified intangible assets due to acquisition |  | 1,405 | ​ | 1,548
Withholding tax | ​ | 191 | ​ | 322
Total deferred tax liabilities | ​ | 1,596 | ​ | 1,870
Net deferred tax assets (liabilities) | ​ | 135 | ​ | (30)
Analysis as: | ​ | ​ | ​ | ​
Deferred tax assets | ​ | 1,054 | ​ | 1,157
Deferred tax liabilities | ​ | 919 | ​ | 1,187
Net deferred tax assets (liabilities) |  | 135 | ​ | (30)
Summary of movement of the valuation allowance | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended December 31,
​ | ​ ​ ​ | 2023 | ​ ​ ​ | 2024 | ​ ​ ​ | 2025
Balance at the beginning of the year | ​ | (731) | ​ | (675) | ​ | (718)
Provided |  | (145) |  | (271) |  | (28)
Reversed |  | 165 |  | 177 |  | 17
Written off |  | 36 |  | 51 |  | 74
Balance at the end of the year |  | (675) |  | (718) |  | (655)
Schedule of unrecognized tax benefits | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended December 31,
​ | ​ ​ ​ | 2023 | ​ ​ ​ | 2024 | ​ ​ ​ | 2025
Balance at the beginning of the year |  | 65 |  | 67 |  | 85
Addition for tax positions |  | 2 |  | 18 |  | 5
Balance at the end of the year |  | 67 |  | 85 |  | 90

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