Segment reporting (Tables)

9 Months Ended

Sep. 30, 2024

Segment Reporting [Abstract]

Schedules of Concentration of Risk, by Risk Factor

The Company’s revenue primarily comes from eight key customers, as shown in the table below. The Company’s remaining customers do not make up significant percentages of these balances. For additional details on product sales and fair value adjustments recognized in the period, refer to Note 3 (Revenue – product sales and recycling services).

Revenue
	For the three months ended September 30, 2024		For the three months ended September 30, 2023		For the nine months ended September 30, 2024		For the nine months ended September 30, 2023
Customer D	29.0	%	1.0	%	28.0	%	1.0	%
Customer I	21.0	%	0.0	%	9.0	%	0.0	%
Customer F	15.0	%	12.0	%	5.0	%	15.0	%
Customer A	3.0	%	33.0	%	3.0	%	30.0	%
Customer H	0.0	%	0.0	%	12.0	%	0.0	%
Customer G	0.0	%	0.0	%	12.0	%	0.0	%
Customer B	0.0	%	21.0	%	0.0	%	9.0	%
Customer C	0.0	%	0.0	%	0.0	%	16.0	%

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

The following is a summary of the Company’s geographical information:

	Canada		United States		Germany		Other		Total
Revenue
Three months ended September 30, 2024	$	—	$	5.9	$	2.5	$	—	$	8.4
Three months ended September 30, 2023	0.1		4.3		—		0.3		4.7
Nine months ended September 30, 2024	0.3		16.6		4.1		—		21.0
Nine months ended September 30, 2023	1.0		10.6		—		0.3		11.9
Non-current assets
As at September 30, 2024	$	69.4	$	670.1	$	27.8	$	21.2	$	788.5
As at December 31, 2023	57.0		618.9		34.9		26.2		737.0