Advances to suppliers net (Details 1) - USD ($) |
6 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2026 |
Sep. 30, 2025 |
|
| Advances to suppliers net | ||
| Balance as of beginning of year | $ 0 | $ 1,912,362 |
| Addition | 14,341,141 | 0 |
| Reversal | 0 | (1,860,686) |
| Translation adjustments | 224,743 | (51,676) |
| Balance as of end of year | $ 14,565,884 | $ 0 |