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Goodwill and other identifiable intangible assets (Tables)

9 Months Ended

Sep. 29, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

Changes in goodwill during the first nine months ended September 29, 2024, were as follows:

			In millions			Gas Cylinders						Elektron						Total
			At January 1, 2024			$	26.2					$	41.3					$	67.5
			Exchange difference			1.2						0.8						2.0
			Net balance at September 29, 2024			$	27.4					$	42.1					$	69.5

Schedule of intangible assets

Identifiable intangible assets consisted of the following:

			In millions			Customer relationships						Technology and trading related						Total
			Cost:
			At January 1, 2024			$	15.2					$	7.8					$	23.0
			Additions			0.4						—						0.4
			Exchange movements			—						0.3						0.3
			At September 29, 2024			$	15.6					$	8.1					$	23.7
			Accumulated amortization:
			At January 1, 2024			$	6.6					$	4.4					$	11.0
			Charge			0.3						0.3						0.6
			Exchange movements			—						0.2						0.2
			At September 29, 2024			$	6.9					$	4.9					$	11.8
			Net book values:
			At January 1, 2024			$	8.6					$	3.4					$	12.0
			At September 29, 2024			$	8.7					$	3.2					$	11.9

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Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.

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Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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