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v3.25.3

Segment reporting (Details) | 12 Months Ended
--- | ---
Jun. 30, 2025 USD ($) segment | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2022 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Number of reportable segments | segment | 1 |  |  |
Total revenues | $ 39,495 | $ 2,888,482 |  | $ 6,261,091
Cost of revenues |  | (3,833,684) |  | (10,826,620)
GROSS PROFIT (LOSS) | 39,495 | (945,202) |  | (4,565,529)
Total operating expenses | (3,031,188) | (13,890,591) |  | (23,739,111)
LOSS FROM OPERATIONS | (2,991,693) | (14,835,793) |  | (28,304,640)
Other (expenses) income, net | (1,378,213) | (3,449,165) |  | 88,288
NET LOSS | $ (4,369,906) | (18,284,958) | $ (28,216,352) | $ (28,216,352)
Single reporting segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Number of reportable segments | segment | 1 |  |  |
Total revenues | $ 39,495 | 2,888,482 | 6,261,091 |
Cost of revenues |  | (3,833,684) | (10,826,620) |
GROSS PROFIT (LOSS) | 39,495 | (945,202) | (4,565,529) |
Salaries and benefits expenses | (403,217) | (1,312,018) | (1,350,704) |
Professional services expenses | (2,551,438) | (2,356,726) | (758,005) |
Impairment losses |  | (8,869,066) | (17,483,368) |
Recovery of (provision for) credit losses | 51,632 | (1,131,988) | (3,273,860) |
Other operating expenses | (128,165) | (220,793) | (873,174) |
Total operating expenses | (3,031,188) | (13,890,591) | (23,739,111) |
LOSS FROM OPERATIONS | (2,991,693) | (14,835,793) | (28,304,640) |
Other (expenses) income, net | (1,378,213) | (3,449,165) | 88,288 |
NET LOSS | $ (4,369,906) | $ (18,284,958) | $ (28,216,352) |

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