NOTE 8 - RELATED PARTY TRANSACTIONS (Details) - USD ($)	3 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Apr. 30, 2020
Details
Advances from related parties for working capital	$ 3,055,118	$ 663,686
Repaid to related parties for working capital	5,268,237	947,046
Interest expense related to due to related parties	16,807	$ 35,741
Due to Pharmaceutical Corporation	3,275,854		$ 3,981,915
Due to Qufu Shengwang	(587,604)		906,879
Due to Weidong Chai	190,023		183,657
Total Due to Related Party	2,878,273		$ 5,072,451
Working capital advances from related parties - Shangdong	0
Working capital advances from related parties - Qufu	3,050,762
Working capital advances from related parties - Weidong Chai	4,355
Working capital advances from related parties	3,055,117
Repayments from related parties - Shandong	(738,867)
Repayments from related parties - Qufu	(4,529,370)
Repayments from related parties - Weidong Chai	0
Repayments from related parties	(5,268,237)
Effect of foreign currency exchange - Shangdong	32,806
Effect of foreign currency exchange - Qufu	(15,875)
Effect of foreign currency exchange - Weidong Chai	2,011
Effect of foreign currency exchange	$ 18,942