NOTE 10 - ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details) - USD ($)	Jan. 31, 2022	Apr. 30, 2021
Details
General liability, worker's compensation, and medical insurance payable	$ 440,679	$ 412,328
Consulting fee payable	213,368	209,871
Union and education fees payable	139,407	137,123
Interest payables for short-term loans	90,238	147,433
Safety production fund payable	642,660	262,449
Advanced from the employees	229,207	159,909
Security deposit for sub-contractor	157,208	154,631
Other miscellaneous payables	$ 5,626	$ 872,318