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BUSINESS ACQUISITION AND INVESTMENT IN UNCONSOLIDATED ENTITY - Fair value of identified goodwill acquired and carrying value (Details) - Future Gas Station (Beijing) Technology, Ltd | 6 Months Ended |
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Dec. 31, 2024 CNY (¥) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2024 USD ($)
BUSINESS ACQUISITION AND INVESTMENT IN UNCONSOLIDATED ENTITY |  |  |
Goodwill | ¥ 6,996,895 |  | $ 958,571
Less: impairment | (6,996,895) |  | (958,571)
The carrying value of goodwill as of December 31, 2024 | 0 |  | $ 0
Impairment loss on goodwill | ¥ 0 | ¥ 0 |

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