Summary of significant accounting policies (Details Narrative) |
6 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2026
USD ($)
|
Mar. 31, 2025
USD ($)
|
Sep. 30, 2025 |
|
| Summary of significant accounting policies | |||
| Description of foreign exchange rate | The exchange rate in effect as of March 31, 2026 and September 30, 2025 was US$1 for RMB6.8980 and US$1 for RMB7.1190, respectively. The average exchange rate for the six months ended March 31, 2026, and 2025 was US$1 for RMB7.0061, and US$1 for RMB7.2306, respectively | ||
| Shipping and handling expenses | $ 14,022 | $ 14,022 | |
| Maximum rate of VAT | 13.00% | ||
| Effect of exchange rate on foreign currency translation | 6.8980 | 7.1190 | |
| Average exchange rates | $ 1 | $ 1 | |
| Maximum insured amount deposit in bank | $ 70,000 | ||