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Plant and equipment
9 Months Ended
Jul. 31, 2022
Disclosure of detailed information about property, plant and equipment [abstract]  
Plant and equipment Plant and equipment
Assets under constructionPlant equipmentComputer software and equipmentStorage containersVehiclesLeasehold improvementsTotal
$$$$$$$
Cost
At October 31, 2021
15,638,165 6,275,419196,27367,619179,2986,219,45628,576,230
Additions
63,102,238 12,622897,763 62,22762,0001,620,27265,757,122
Transfers from Assets under construction(12,875,473)12,875,473 — — — — — 
At July 31, 2022
65,864,930 19,163,5141,094,036129,846241,2987,839,72894,333,352
Accumulated depreciation
At October 31, 2021
— (1,549,700)(8,645)(14,172)(49,314)(564,936)(2,186,767)
Depreciation— (1,673,934)(148,682)(8,050)(35,514)(527,145)(2,393,325)
At July 31, 2022
(3,223,634)(157,327)(22,222)(84,828)(1,092,081)(4,580,092)
Carrying amounts— 
At October 31, 2021
15,638,1654,725,719187,62853,447129,9845,654,52026,389,463
At July 31, 2022
65,864,93015,939,880936,709107,624156,4706,747,64789,753,260