Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended	9 Months Ended
Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
OPERATING ACTIVITIES
Net loss for the period	$ (4,590,161)	$ (3,273,644)	$ (13,014,757)	$ (10,204,882)
Adjustments to reconcile net loss to cash flows in operating activities
Stock-based compensation	1,167,727	695,645	3,764,300	2,411,281
Depreciation, amortization and accretion			294,964	232,198
Amortization of long-term debt discount			1,122,096	1,244,032
Loss (gain) on disposition of assets	2,133	(216)	2,133	(2,016)
Gain on loan extinguishment	(7,759)		(286,376)
Income from equity-accounted investment	(870,013)	(684,443)	(767,321)	(3,048,219)
Deferred tax benefits	(937)	(1,013)	(2,794)	(4,623)
Changes in operating assets and liabilities
Inventories			(26,193,818)
Prepaid expenses and deposits			(402,017)	248,845
Other current assets			(13,903)	130,877
Accounts payable and accrued liabilities			256,028	(1,222,616)
Due to a related party			(31,334)	(52,505)
Other liabilities			22,591	(65,028)
NET CASH USED IN OPERATING ACTIVITIES			(35,250,208)	(10,332,656)
FINANCING ACTIVITIES
Proceeds from share issuances, net of issuance costs			88,551,751
Proceeds from a government loan				28,756
NET CASH PROVIDED BY FINANCING ACTIVITIES			78,453,548	28,756
INVESTING ACTIVITIES
Investment in mineral rights and properties			(80,000)	(80,000)
Purchase of property, plant and equipment			(142,266)	(83,841)
Investment in term deposits			(10,000,000)
Proceeds from redemption of term deposits			6,000,000	11,831,671
Proceeds from disposition of assets				2,800
NET CASH (USED IN) PROVIDED BY INVESTING ACTIVITIES			(4,222,266)	11,670,630
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH			38,981,074	1,366,730
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD			6,986,919	7,879,578
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	$ 45,967,993	$ 9,246,308	45,967,993	9,246,308
Credit Agreement [Member]
FINANCING ACTIVITIES
Repayments of long-term debt			(10,000,000)
Other Loans Payable [Member]
FINANCING ACTIVITIES
Repayments of long-term debt			$ (98,203)

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