NOTE 10 - ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details) - USD ($)	Oct. 31, 2021	Apr. 30, 2021
Details
General liability, worker's compensation, and medical insurance payable	$ 409,230	$ 412,328
Consulting fee payable	215,702	209,871
Union and education fees payable	138,434	137,123
Interest payables for short-term loans	50,740	147,433
Safety production fund payable	490,750	262,449
Advanced from the employees	153,735	159,909
Security deposit for sub-contractor	156,111	154,631
Other miscellaneous payables	$ 4,482	$ 872,318