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Statement of cash flows, additional disclosures
12 Months Ended
Oct. 31, 2022
Statement of cash flows [abstract]  
Notes to the Consolidated Statement of Cash Flows Notes to the Consolidated Statement of Cash Flows
As of October 31, 2022, the Company had cash on hand of $269.3 million (2021: $6.9 million) and cash equivalents in the form of short term guaranteed investment certificates of $309.0 million (2021: $590.0 million).

Changes in liabilities arising from financing activities comprise the following:
For the year ended October 31,2022
Lease liabilitiesRestoration provisionsConvertible debtConversion feature of convertible debt
Balance, beginning of the year$29.4 $0.3 $71.9 $29.0 
Cash changes:
Repayments of lease liabilities(4.7)   
Repayment of loans payable    
Proceeds from convertible debt  152.5 46.2 
Total changes from financing cash flows(4.7) 152.5 46.2 
Non-cash changes:
New leases28.8    
Disposal(0.2)   
Additions to restoration provision 0.1   
Accrued interest and accretion  14.3  
Foreign exchange gain or (loss)(1.5)   
Fair value gain/loss on conversion feature of convertible debt
   (31.3)
Accrued interest paid in kind  5.9  
Total non-cash changes$27.1 $0.1 $20.2 $(31.3)
Balance, end of the year$51.8 $0.4 $244.6 $43.9