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Contract Liabilities

12 Months Ended

Dec. 31, 2024

Revenue from Contract with Customer [Abstract]

16. Contract liabilities

Contract liabilities represent the Group’s obligation to transfer services to a customer for which the Group has received advanced consideration, before the performance obligation has been satisfied. These liabilities are recognized when a customer prepays for services or when the Group has an unconditional right to consideration before the performance obligation is fulfilled.

Contract liabilities comprise entirely of advance consideration received from customers (deferred revenue) in respect of the Mallinckrodt, AstraZeneca plc, and Hansoh research collaborations. The current contract liabilities represent the amount of estimated revenue to be reported in the next 12 months related to amounts invoiced to its partners, while the non-current portion represents everything beyond 12 months. Current and non-current contract liabilities include future revenue from collaboration recharged expenses, upfront payments, and milestones achieved to December 31, 2024.


	Year ended December 31,
	2024			2023
	$000s			$000s
Contract liabilities:
Current		306			6,571
Non-current		51,790			75,001
Total contract liabilities		52,096			81,572

Contract liabilities:
At January 1, 2024		81,572			87,467
Foreign exchange impact		(691	)		4,428
Additions during period		14,328			20,611
Revenue unwound during period		(43,113	)		(30,934	)
At December 31, 2024		52,096			81,572

During the years ended December 31, 2024 and 2023 contract liabilities decreased primarily due to the recognition of revenue in the amount of $43.1 million and $30.9 million, respectively, that was included in the contract liabilities balance at the beginning of the year.