v3.26.3
Segment reporting (Details 1) - USD ($)
6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment revenue $ 17,720,359 $ 16,376,697
Robotics Solutions [Member]    
Segment revenue 107,589 0
PRC [Member] | Robotics Solutions [Member]    
Segment revenue 0 0
United State Of America [Member] | Robotics Solutions [Member]    
Segment revenue 107,589 0
Activated Carbon [Member] | PRC [Member]    
Segment revenue 17,612,770 16,376,697
Activated Carbon [Member] | United State Of America [Member]    
Segment revenue $ 0 $ 0