Accounts receivable

6 Months Ended

12 Months Ended

Apr. 30, 2022

Oct. 31, 2021

3.	Accounts receivable


	April 30, 2022 $		October 31, 2021 $
Trade Receivables		11,501,265		4,072,701

Total accounts receivable		11,501,265		4,072,701

Sales Taxes receivable		1,392,789		379,814
Other		171,641		593,331

Total other receivables		1,564,430		973,145

For product sales, the Company estimates the amount of consideration to which it expects to be entitled under provisional pricing arrangements. For the three and six months ended April 30, 2022, the fair value gain arising from changes in estimates was $3,971,482 and $5,709,952, respectively (three and six months ended April 30, 2021: $(107,535) and $167,969) included in the respective accounts receivable balance.

For the three and six months ended April 30, 2022, the Company has assessed an allowance for credit loss of $3,506 for service-related receivables based on its past experience, the credit ratings of its existing customers and economic trends (at October 31, 2021: $nil).

The Company’s revenue and accounts receivable primarily come from two key customers as shown in the table below. The Company’s remaining customers do not make up significant percentages of these balances.


	Three months ended						Six months ended
	2022 %			2021 %			2022 %			2021 %
Revenue
Customer A		10.0	%		65.0	%		16.0	%		85.0	%
Customer B		83.0	%		0.0	%		74.0	%		0.0	%


	April 30, 2022 $			October 31, 2021 $
Accounts Receivable
Customer A		7.4	%		94.0	%
Customer B		79.1	%		0.0	%

4. Accounts receivable


Aging Summary	October 31, 2021		October 31, 2020
	$		$
Current		3,181,294		540,824
1-30 days		310,818		—
31-60 days		120,604		21,455
61-90 days		18,477		—
91 days and over		441,508		9,021

		4,072,701		571,300

For product sales, the Company estimates the amount of consideration to which it expects to be entitled under provisional pricing arrangements. For the twelve months ended October 31, 2021, the fair value gain

arising from changes in estimates was

$805,789 (twelve months ended October 31, 2020: Nil).

An insignificant portion of the receivables relate to services revenue which are initially measured at fair value and subsequently at amortized cost. For the period ended October 31, 2021 and 2020, the Company has assessed an allowance for credit loss of $nil for service-related receivables based on its past experience, the credit ratings of its existing customers and economic trends.


	October 31, 2021		October 31, 2020
	$		$
Harmonized Sales Taxes receivable		379,814		274,998
Other receivables		593,331		43,931

		973,145		318,929