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v3.25.1

TAXATION - Reconciliation of the beginning and ending amount of unrecognized tax benefits excluding the penalty and interest (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 CNY (¥)
TAXATION |  |  |
Balance at the beginning of year | ¥ 63,899 | $ 8,754 | ¥ 67,172
Changes based on tax positions related to the current year | 0 | 0 |
Additions related to prior year tax position | 5,469 | 749 | 12,084
Decreases related to prior year tax position | (610) | (84) | (14,104)
Decrease related to disposal of CMSI | (1,011) | (139) | (7,861)
Decreases relating to expiration of applicable statute of limitation | (680) | (93) | (1,997)
Foreign currency translation | 732 | 100 | 8,605
Balance at the end of year | ¥ 67,799 | $ 9,287 | ¥ 63,899

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