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NOTE 13 - CONCENTRATIONS AND CREDIT RISK: Schedule of cash position by geographic area (Details) - USD ($)
Oct. 31, 2021
Apr. 30, 2021
Details    
Cash held in United States $ 181,373 $ 161,860
Percent of Cash held in United States 26.00% 10.30%
Cash held in PRC $ 517,262 $ 1,403,969
Percent of Cash held in PRC 74.00% 89.70%