Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
 3 Months Ended
Jul. 31, 2022
Jul. 31, 2021
Cash flows from operating activities:    
Net loss $ (1,545,012) $ (1,025,418)
Adjustments to reconcile net loss to net cash used in operating activities:    
Stock issued for services 2,278 24,765
Stock issued for compensation 2,750 11,055
Stock-based compensation – options 4,595 24,144
Change in assets and liabilities:    
(Increase) decrease in prepaid expenses and other current assets 66,024 (246,930)
Increase (decrease) in accounts payable 353,665 (6,519)
Increase (decrease) in accrued expenses 31,322 (22,318)
Net cash used in operating activities (1,084,378) (1,241,221)
Cash flows from investing activities:    
Net cash provided by (used in) investing activities 0 0
Cash flows from financing activities:    
Repurchase of common stock (2,090,847) 0
Proceeds from warrant exercise 880 0
Net cash used in financing activities (2,089,967) 0
Effect of currency rate exchange on cash and cash equivalents 1,304 (1,615)
Net decrease in cash and cash equivalents (3,173,041) (1,242,836)
Cash and cash equivalents at beginning of the period 85,400,656 2,202,106
Cash and cash equivalents at end of the period 82,227,615 959,270
Supplemental disclosure of cash flows information:    
Cash paid during the periods for income taxes 0 1,600
Cash paid during the periods for interest 0 467
Supplemental information of non-cash activities:    
Prepaid expenses included in accounts payable $ 0 $ 229,033