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v3.25.1

ACCOUNTS RECEIVABLE, NET - Movement of allowance for doubtful accounts (Details) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 CNY (¥) | Jun. 30, 2024 CNY (¥)
ACCOUNTS RECEIVABLE, NET |  |  |  |
Charge to (reversal of) credit losses | ¥ 1,614,507 | $ (221,187) | ¥ 1,051,564 |
Third Parties |  |  |  |
ACCOUNTS RECEIVABLE, NET |  |  |  |
Beginning balance | 1,968,461 | 269,678 | ¥ 995,449 | ¥ 995,449
Charge to (reversal of) credit losses | 1,614,507 | 221,187 |  | 973,012
Foreign currency translation adjustments | 0 | 0 |  |
Ending balance | ¥ 3,582,968 | $ 490,865 |  | ¥ 1,968,461

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