Advances to suppliers net (Details) - USD ($) |
Mar. 31, 2026 |
Sep. 30, 2025 |
|---|---|---|
| Advances to suppliers | $ 81,441,885 | $ 56,430,354 |
| Less: Allowance for doubtful accounts | (42,638,721) | (10,125,650) |
| Advances to suppliers, net | 38,803,164 | 46,304,704 |
| Lishui Zhelin Trading Co., Ltd | ||
| Advances to suppliers | 10,450,058 | 23,470,221 |
| Jingning Liannong Trading Co., Ltd | ||
| Advances to suppliers | 35,212,951 | 16,092,973 |
| Qingyuan Nongbang Mushroom Industry Co., Ltd | ||
| Advances to suppliers | 35,772,877 | 16,848,007 |
| Others | ||
| Advances to suppliers | $ 5,999 | $ 19,153 |