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Accrued expenses and other liabilities | 12 Months Ended
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Dec. 31, 2022
Accrued expenses and other liabilities |
Accrued expenses and other liabilities | 14.Accrued expenses and other liabilities Accrued expenses and other liabilities, current and non-current consisted of the following: ​
​ | ​ | ​ | ​ | ​
​ | ​ | As of December 31,
​ |  | 2021 |  | 2022
​ | ​ | RMB | ​ | RMB
Salaries and benefits payables |  | 228,999 |  | 218,614
Taxes payable |  | 39,094 |  | 86,490
Product warranties |  | 40,263 |  | 61,432
Accrued costs of the Merger | ​ | — | ​ | 136,756
Other payables and accrued charges* |  | 150,623 |  | 235,311
Accrued expenses and other current liabilities |  | 458,979 |  | 738,603
*Other payables and accrued charges primarily include accrual for research and development expenses. ​

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