v3.26.1
Long-term investments (Details 1) - USD ($)
12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Long-term investments    
Balance, beginning of the year $ 0 $ 0
Investment in Ynong International Group Limited 40,913,370 0
Loss from equity method investments 308,681 0
Balance, end of the year $ 40,604,689 $ 0