Plant and equipment

3 Months Ended

Mar. 31, 2023

Disclosure of detailed information about property, plant and equipment [abstract]


For the three months ended March 31,											2023
	Assets under construction		Plant equipment and other		Computer equipment		Vehicles		Leasehold improvements		Total
Cost
Balance, beginning of the period	$	167.1	$	38.2	$	2.1	$	0.3	$	9.9	$	217.6
Additions	86.6		—		0.3		—		0.2		87.1
Transfers	(0.6)		0.6		—		—		—		—
Balance, end of the period	253.1		38.8		2.4		0.3		10.1		304.7

Accumulated depreciation
Balance, beginning of the period	—		(5.3)		(0.3)		(0.1)		(1.5)		(7.2)
Depreciation	—		(1.4)		(0.2)		—		(0.3)		(1.9)
Balance, end of the period	—		(6.7)		(0.5)		(0.1)		(1.8)		(9.1)
Net book value	$	253.1	$	32.1	$	1.9	$	0.2	$	8.3	$	295.6

For the three months ended March 31, 2023, $2.0 million in employee salaries and $0.2 million in share-based compensation costs (2022: $nil) were capitalized to assets under construction.

For the three months ended March 31, 2023, $5.7 million in borrowing costs (2022: $nil) were capitalized to assets under construction. The capitalization rate used to determine the amount of borrowing costs eligible for capitalization in the period was a weighted average effective interest rate of 12.6%.

Refer to Note 15 for details of contractual commitments to purchase fixed assets.