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TRADE ACCOUNTS RECEIVABLE, NET - Summary of Accounts receivable (Details) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Jun. 30, 2021 CNY (¥)
--- | --- | --- | ---
Third Party |  |  |
Total third-parties, net | ¥ 41,748,478 | $ 6,562,763 | ¥ 26,686,888
Related Party. |  |  |
Allowance for credit losses | (6,231,563) | (979,587) | (4,332,984)
Total related-party, net |  |  | 0
Third Party. |  |  |
Third Party |  |  |
Trade accounts receivable | 42,135,448 | 6,623,593 | 31,669,331
Allowance for credit losses | (386,970) | (60,830) | (4,982,443)
Urumqi Yikeli Automatic Control Equipment Co., Ltd [Member] |  |  |
Related Party. |  |  |
Total related-party, net | ¥ 6,231,563 | $ 979,587 | ¥ 4,332,984

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