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v3.25.3

CONCENTRATIONS (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Jun. 30, 2025 CNY (¥) item | Jun. 30, 2024 CNY (¥) item | Jun. 30, 2023 item | Jun. 30, 2025 USD ($) | Jun. 30, 2025 HKD ($)
CONCENTRATIONS |  |  |  |  |
Number of major suppliers | item | 2 | 2 | 1 |  |
China |  |  |  |  |
CONCENTRATIONS |  |  |  |  |
Cash was on deposit at financial institutions | ¥ 36,600,000 | ¥ 90,300,000 |  | $ 5.1 |
Maximum insured bank deposit | ¥ | 500,000 |  |  |  |
Unprotected cash held in banks | 31,100,000 | 84,400,000 |  | 4.3 |
Hong Kong |  |  |  |  |
CONCENTRATIONS |  |  |  |  |
Cash was on deposit at financial institutions | 65,900,000 | 108,700,000 |  | 9.2 |
Maximum insured bank deposit | $ |  |  |  |  | $ 800,000
Unprotected cash held in banks | ¥ 63,400,000 | ¥ 105,500,000 |  | $ 8.8 |
Supplier one | Supplier concentration risk | Cost of goods and service |  |  |  |  |
CONCENTRATIONS |  |  |  |  |
Concentration risk, percentage | 11.20% | 18.50% | 26.30% |  |
Supplier two | Supplier concentration risk | Cost of goods and service |  |  |  |  |
CONCENTRATIONS |  |  |  |  |
Concentration risk, percentage | 11.00% | 14.90% |  |  |
CNPC | Customer concentration | Total revenue |  |  |  |  |
CONCENTRATIONS |  |  |  |  |
Concentration risk, percentage | 44.00% | 48.00% | 43.00% |  |
CNPC | Customer concentration | Accounts receivable |  |  |  |  |
CONCENTRATIONS |  |  |  |  |
Concentration risk, percentage | 17.00% | 38.00% | 31.00% |  |
SINOPEC | Customer concentration | Total revenue |  |  |  |  |
CONCENTRATIONS |  |  |  |  |
Concentration risk, percentage | 17.00% | 19.00% | 32.00% |  |
SINOPEC | Customer concentration | Accounts receivable |  |  |  |  |
CONCENTRATIONS |  |  |  |  |
Concentration risk, percentage | 26.00% | 27.00% | 27.00% |  |
Another customer | Customer concentration | Accounts receivable |  |  |  |  |
CONCENTRATIONS |  |  |  |  |
Concentration risk, percentage | 57.00% | 6.00% |  |  |
Another customer | Customer one | Accounts receivable |  |  |  |  |
CONCENTRATIONS |  |  |  |  |
Concentration risk, percentage |  |  | 11.00% |  |
Another customer | Customer two | Accounts receivable |  |  |  |  |
CONCENTRATIONS |  |  |  |  |
Concentration risk, percentage |  |  | 10.00% |  |

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