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v3.23.1

Derivative liability (Details) ¥ in Thousands, $ in Thousands | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Aug. 31, 2021 CNY (¥) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2022 USD ($) | Aug. 31, 2021 USD ($)
Derivative liability |  |  |  |  |  |  |
Debt instrument term | 2 years |  |  |  |  |  |
Basic interest rate |  | 4.50% |  |  |  | 4.50% |
Additional interest rate |  | 5.50% | 5.50% |  |  |  |
Change in fair value of derivative liability |  | ¥ 1,015 | $ 147 | ¥ (39) | ¥ 0 |  |
Net proceeds from issuance of debt |  | 422,765 | 61,295 | 386,635 | ¥ 857,110 |  |
Amortization of debt |  | ¥ 5,824 | $ 914 |  |  |  |
Amortization period |  | 2 years | 2 years |  |  |  |
Great Lion Debt |  |  |  |  |  |  |
Derivative liability |  |  |  |  |  |  |
Principal amount | ¥ 31,863 |  |  |  |  |  | $ 5,000
Basic interest rate | 11.00% |  |  |  |  |  | 11.00%
Fair value of embedded derivative |  | ¥ 1,793 |  | 1,969 |  | $ 260 |
Net proceeds from issuance of debt |  | 34,486 | $ 5,000 |  |  |  |
Debt instrument, Carrying amount |  | 89,726 |  |  |  |  |
Vantage Debt |  |  |  |  |  |  |
Derivative liability |  |  |  |  |  |  |
Principal amount | ¥ 63,726 |  |  |  |  |  | $ 10,000
Basic interest rate | 22.00% |  |  |  |  |  | 22.00%
Fair value of embedded derivative |  | 3,497 |  | ¥ 3,894 |  | 507 |
Net proceeds from issuance of debt |  | 68,972 | $ 10,000 |  |  |  |
Debt instrument, Carrying amount |  | ¥ 98,168 |  |  |  | $ 14,233 |

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