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Taxation (Tables) | 12 Months Ended
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Dec. 31, 2024
Income Tax Disclosure [Abstract] |
Schedule of The components of loss before tax | The components of loss before tax are as follows:
|  | Year ended December 31, |
|  | 2022 |  |  | 2023 |  |  | 2024 |
|  | RMB |  |  | RMB |  |  | RMB |
Loss before tax |  |  |  |  |  |  |  |  |  |  |  |
Loss from PRC entities |  |  | (607,635 | ) |  |  | (307,901 | ) |  |  | (176,456 | )
(Loss)/gain from overseas entities |  |  | (38,051 | ) |  |  | 68,192 |  |  |  | 84,403 |
Total loss before tax |  |  | (645,686 | ) |  |  | (239,709 | ) |  |  | (92,053 | )
|  | Year ended December 31, |
|  | 2022 |  |  | 2023 |  |  | 2024 |
|  | RMB |  |  | RMB |  |  | RMB |
Current income tax expense |  |  | — |  |  |  | — |  |  |  | — |
Deferred income tax benefit |  |  | 5,391 |  |  |  | 9,871 |  |  |  | — |
Total income tax benefit |  |  | 5,391 |  |  |  | 9,871 |  |  |  | — |
Schedule of Reconciliation of the differences between the statutory EIT rate | Reconciliation of the differences between the statutory EIT rate applicable to losses of the consolidated entities and the income tax benefit of the Group:
|  | Year ended December 31, |
|  | 2022 |  |  | 2023 |  |  | 2024 |
PRC Statutory income tax rate |  |  | 25.0 | % |  |  | 25.0 | % |  |  | 25.0 | %
Tax rate difference from statutory rate in other jurisdictions (1) |  |  | (1.5 | % ) |  |  | 8.0 | % |  |  | 21.0 | %
Effect of preferential tax rates and tax holiday (2) |  |  | (0.5 | % ) |  |  | (4.0 | % ) |  |  | (11.0 | % )
Effect of permanent differences (3) |  |  | (2.8 | % ) |  |  | (2.6 | % ) |  |  | (25.0 | % )
Additional deduction of qualified R&D expenditures |  |  | 4.2 | % |  |  | 7.7 | % |  |  | 16.0 | %
Changes in valuation allowance |  |  | (23.4 | % ) |  |  | (19.0 | % ) |  |  | 70.0 | %
Effect of changes in tax rates |  |  | — |  |  |  | — |  |  |  | (25.0 | % )
Effect of expiration on NOL |  |  | (0.2 | % ) |  |  | (11.0 | % ) |  |  | (49.0 | % )
Effect of deconsolidation on NOL |  |  | — |  |  |  | — |  |  |  | (22.0 | %)
Effective tax rates |  |  | 0.8 | % |  |  | 4.1 | % |  |  | — |
(1) | The tax rate difference is attributed to varying rates in other jurisdictions where the Group is established or operates, such as the Cayman Islands, British Virgin Islands or Hong Kong.
(2) | Jiangsu Radnova has been qualified as HNTE and enjoys a preferential income tax rate of 15% during 2022, 2023 and 2024. Since Jiangsu Radnova had cumulative tax losses as of December 31, 2023 and 2024, there was no effect of the tax holiday.
(3) | The permanent differences are primarily related to share-based compensation, non-deductible expenses and true-up on NOL.
Schedule of Tax effects of temporary differences that give rise to the deferred tax asset | The tax effects of temporary differences that give rise to the deferred tax asset balances as of December 31, 2023 and 2024 are as follows:
|  | As of December 31, |
|  | 2023 |  |  | 2024 |
|  | RMB |  |  | RMB |
Deferred tax assets |  |  |  |  |  |  |  |
Net accumulated losses-carry forward |  |  | 522,038 |  |  |  | 452,178 |
Accounts receivables allowance |  |  | 325 |  |  |  | 259 |
Fair value change of long-term investment |  |  | 1,972 |  |  |  | 4,141 |
Total deferred tax assets |  |  | 524,335 |  |  |  | 456,578 |
Less: valuation allowance |  |  | (521,462 | ) |  |  | (456,578 | )
Total deferred tax assets, net of valuation allowance |  |  | 2,873 |  |  |  | — |
Amounts offset by deferred tax liabilities |  |  | (2,873 | ) |  |  | — |
Total deferred tax assets, net |  |  | — |  |  |  | — |
|  | As of December 31, |
|  | 2023 |  |  | 2024 |
|  | RMB |  |  | RMB |
Deferred tax liabilities |  |  |  |  |  |  |  |
Intangible assets, net |  |  | 1,909 |  |  |  | — |
Prepaid expenses |  |  | 964 |  |  |  | — |
Total deferred tax liabilities |  |  | 2,873 |  |  |  | — |
Amounts offset by deferred tax assets |  |  | (2,873 | ) |  |  | — |
Total deferred tax liabilities, net |  |  | — |  |  |  | — |
Schedule of Movement of valuation allowance | Movement of valuation allowance
|  | Year ended December 31, |
|  | 2022 |  |  | 2023 |  |  | 2024 |
|  | RMB |  |  | RMB |  |  | RMB |
Balance at beginning of the year |  |  | (325,200 | ) |  |  | (476,022 | ) |  |  | (521,462 | )
Changes of valuation allowance |  |  | (150,822 | ) |  |  | (45,440 | ) |  |  | 64,884 |
Balance at end of the year |  |  | (476,022 | ) |  |  | (521,462 | ) |  |  | (456,578 | )

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