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v3.22.1

CONTRACT COSTS, NET (Tables) | 6 Months Ended
--- | ---
Dec. 31, 2021
CONTRACT COSTS, NET |
Summary of contract costs, net | Contract costs, net consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | June 30, |  | December 31, |  | December 31,
​ | ​ | 2021 | ​ | 2021 | ​ | 2021
​ | ​ | ​ | ​ | ​ | RMB | ​ | U.S. Dollars
Third Party |  | RMB |  | (Unaudited) | ​ | (Unaudited)
Contract costs |  | ¥ | 53,344,816 | ​ | ¥ | 33,275,972 | ​ | $ | 5,230,905
Allowance for credit losses |  |  | (4,548,910) |  |  | (1,911,499) | ​ |  | (300,483)
Total contract costs, net |  | ¥ | 48,795,906 | ​ | ¥ | 31,364,473 | ​ | $ | 4,930,422
​
Summary of movement of allowance for credit costs | Movement of allowance for credit losses of contract costs is as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | June 30, |  | December 31, |  | December 31,
​ | ​ | 2021 | ​ | 2021 | ​ | 2021
​ | ​ | ​ | ​ | RMB | ​ | U.S. Dollars
​ | RMB |  | (Unaudited) | ​ | (Unaudited)
Beginning balance |  | ¥ | 139,762 |  | ¥ | 4,548,910 | ​ | $ | 715,078
Charge to (reversal of) credit losses |  |  | 4,647,802 |  |  | (2,676,267) | ​ |  | (420,703)
Charge to cost of sales | ​ | ​ | — | ​ | ​ | 38,856 | ​ | ​ | 6,108
Less: write-off | ​ | ​ | (238,654) | ​ | ​ | — | ​ | ​ | —
Ending balance |  | ¥ | 4,548,910 |  | ¥ | 1,911,499 | ​ | $ | 300,483

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