v3.21.2

Accounts Receivable, Net (Details) - Schedule of net accounts receivable - USD ($) | Jun. 30, 2021 | Jun. 30, 2020
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Schedule of net accounts receivable [Abstract] |  |
Trade accounts receivable | $ 3,589,011 | $ 3,453,439
Less: allowances for doubtful accounts | (3,475,769) | (2,297,491)
Accounts receivable, net | $ 113,242 | $ 1,155,948

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