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Long-term investments | 12 Months Ended
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Dec. 31, 2024
Long-term Investments |
Long-term investments | Note 10 — Long-term investments Long-term investments consist of the following:
Schedule of Long-term investments |  |  |  |  |  |  |  |  |  |  |  |
|  | December 31, 2023 |  |  | December 31, 2024 |  |  | December 31, 2024 |
|  | RMB |  |  | RMB |  |  | USD |
5.0% Investment in a company in mobile games industry |  |  | 600,000 |  |  |  | 600,000 |  |  |  | 83,468 |
5.0% Investment in a company in central processing advertising algorithm services |  |  | 600,000 |  |  |  | 600,000 |  |  |  | 83,468 |
Subtotal |  |  | 1,200,000 |  |  |  | 1,200,000 |  |  |  | 166,936 |
Less: Impairment loss |  |  | 1,102,938 |  |  |  | 1,102,938 |  |  |  | 153,433 |
Total |  |  | 97,062 |  |  |  | 97,062 |  |  |  | 13,503 |
During the years ended December 31, 2023 and 2024, the Company’s long-term investments amounted to RMB 97,062 and RMB 97,062 (USD 13,503), respectively. The Company made impairment allowance of equity method investments with the amount of RMB 534,031 (USD 74,291) for the company in mobile games industry and RMB 568,907 (USD 79,142) for the company in central processing.

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