v3.21.2

Related Party Balance and Transactions (Details) | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2021 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2020 CNY (¥) | Jun. 10, 2021 USD ($) | Jun. 10, 2021 CNY (¥) | Apr. 13, 2021 | Apr. 10, 2021 USD ($) | Apr. 10, 2021 CNY (¥) | Mar. 24, 2021
Related Party Balance and Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts | $ 10,000 | $ 41,341 |  |  |  |  |  |  |
Loan amount |  |  |  | $ 619,329 | ¥ 4,000,000 |  | $ 4,644,969 | ¥ 30,000,000 |
Equity method investment ownership percentage | 100.00% |  |  |  |  | 99.00% |  |  | 60.00%
Repayment of loan amount |  | 619,329 | ¥ 4,000,000 |  |  |  |  |  |
April 2023 [Member] |  |  |  |  |  |  |  |  |
Related Party Balance and Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |
Repayment of loan amount |  | 4,025,640 | ¥ 26,000,000 |  |  |  |  |  |
Zhejiang Jinbang Fuel Energy Co., Ltd [Member] |  |  |  |  |  |  |  |  |
Related Party Balance and Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |
Advance payment |  | 477,278 |  |  |  |  |  |  |
Zhejiang Jinbang return [Member] |  |  |  |  |  |  |  |  |
Related Party Balance and Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |
Advance payment |  | 46,376 |  |  |  |  |  |  |
Zhang [Member] |  |  |  |  |  |  |  |  |
Related Party Balance and Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts | $ 345,898 |  |  |  |  |  |  |  |
Wang Qinggang [Member] |  |  |  |  |  |  |  |  |
Related Party Balance and Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |
Equity method investment ownership percentage |  |  |  |  |  |  | 30.00% | 30.00% |
CEO [Member] |  |  |  |  |  |  |  |  |
Related Party Balance and Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |
Payable of related party | 11,303 | 6,279 |  |  |  |  |  |  |
CFO [Member] |  |  |  |  |  |  |  |  |
Related Party Balance and Transactions (Details) [Line Items] |  |  |  |  |  |  |  |  |
Payable of related party | $ 2,516 | $ 26,570 |  |  |  |  |  |  |

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