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Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2023

Property, plant and equipment not subject to operating leases [member]

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

Summary of Property, Plant and Equipment


	Land and Land Improvements				Buildings				Machinery and Equipment				Office Equipment				Equipment under Installation and Construction in Progress				Total
		NT$				NT$				NT$				NT$				NT$				NT$
		(In Millions)				(In Millions)				(In Millions)				(In Millions)				(In Millions)				(In Millions)

Cost

Balance at January 1, 2021		$	3,942.6			$	522,447.4			$	3,607,005.7			$	68,862.7			$	223,965.4			$	4,426,223.8
Additions			2,587.2				53,971.3				401,659.0				7,643.0				369,545.8				835,406.3
Disposals or retirements			-				(41.1	)			(26,192.2	)			(333.4	)			-				(26,566.7	)
Transfers from assets subject to operating leases			-				35.5				1,443.6				-				-				1,479.1
Transfers to assets subject to operating leases			-				-				(244.6	)			-				-				(244.6	)
Effect of exchange rate changes			(41.6	)			184.7				1,077.7				(18.1	)			(355.5	)			847.2


Balance at December 31, 2021		$	6,488.2			$	576,597.8			$	3,984,749.2			$	76,154.2			$	593,155.7			$	5,237,145.1


Accumulated depreciation and impairment

Balance at January 1, 2021		$	506.1			$	271,799.5			$	2,555,530.0			$	43,802.3			$	-			$	2,871,637.9
Additions			1.3				34,331.6				368,777.7				8,373.3				-				411,483.9
Disposals or retirements			-				(36.5	)			(22,230.1	)			(332.6	)			-				(22,599.2	)
Transfers from assets subject to operating leases			-				15.1				436.8				-				-				451.9
Transfers to assets subject to operating leases			-				-				(68.3	)			-				-				(68.3	)
Impairment			-				-				274.4				-				-				274.4
Effect of exchange rate changes			(7.6	)			55.6				818.9				(16.4	)			-				850.5


Balance at December 31, 2021		$	499.8			$	306,165.3			$	2,903,539.4			$	51,826.6			$	-			$	3,262,031.1


Carrying amounts at December 31, 2021		$	5,988.4			$	270,432.5			$	1,081,209.8			$	24,327.6			$	593,155.7			$	1,975,114.0


Cost

Balance at January 1, 2022		$	6,488.2			$	576,597.8			$	3,984,749.2			$	76,154.2			$	593,155.7			$	5,237,145.1
Additions			816.4				59,443.8				330,782.7				10,325.3				738,523.9				1,139,892.1
Disposals or retirements			-				(236.8	)			(25,846.4	)			(1,709.2	)			-				(27,792.4	)
Transfers to assets subject to operating leases			-				-				(65.8	)			-				-				(65.8	)
Effect of exchange rate changes			357.2				1,242.1				6,322.9				257.7				5,163.0				13,342.9


Balance at December 31, 2022		$	7,661.8			$	637,046.9			$	4,295,942.6			$	85,028.0			$	1,336,842.6			$	6,362,521.9


Accumulated depreciation and impairment

Balance at January 1, 2022		$	499.8			$	306,165.3			$	2,903,539.4			$	51,826.6			$	-			$	3,262,031.1
Additions			1.4				35,982.4				380,216.2				9,216.3				-				425,416.3
Disposals or retirements			-				(225.6	)			(24,706.7	)			(1,708.6	)			-				(26,640.9	)
Transfers to assets subject to operating leases			-				-				(40.3	)			-				-				(40.3	)
Impairment			-				-				-				-				790.7				790.7
Effect of exchange rate changes			54.9				1,016.3				5,872.3				205.8				-				7,149.3


Balance at December 31, 2022		$	556.1			$	342,938.4			$	3,264,880.9			$	59,540.1			$	790.7			$	3,668,706.2


Carrying amounts at December 31, 2022		$	7,105.7			$	294,108.5			$	1,031,061.7			$	25,487.9			$	1,336,051.9			$	2,693,815.7


	Land and Land Improvements				Buildings				Machinery and Equipment				Office Equipment				Equipment under Installation and Construction in Progress				Total
		NT$				NT$				NT$				NT$				NT$				NT$
		(In Millions)				(In Millions)				(In Millions)				(In Millions)				(In Millions)				(In Millions)

Cost

Balance at January 1, 2023		$	7,661.8			$	637,046.9			$	4,295,942.6			$	85,028.0			$	1,336,842.6			$	6,362,521.9
Additions (deductions)			-				182,033.3				1,120,848.7				18,205.5				(423,568.7	)			897,518.8
Disposals or retirements			-				(585.5	)			(28,525.9	)			(3,325.3	)			-				(32,436.7	)
Transfers from right-of-use assets			-				-				4.4				-				-				4.4
Transfers from assets subject to operating leases			-				-				80.4				-				-				80.4
Transfers to assets subject to operating leases			-				-				(71.1	)			-				-				(71.1	)
Effect of exchange rate changes			(39.8	)			(671.7	)			(3,293.5	)			(83.1	)			(4,984.1	)			(9,072.2	)


Balance at December 31, 2023		$	7,622.0			$	817,823.0			$	5,384,985.6			$	99,825.1			$	908,289.8			$	7,218,545.5


Accumulated depreciation and impairment
Balance at January 1, 2023		$	556.1			$	342,938.4			$	3,264,880.9			$	59,540.1			$	790.7			$	3,668,706.2
Additions			1.3				45,052.9				463,825.3				10,586.7				-				519,466.2
Disposals or retirements			-				(583.0	)			(27,407.7	)			(3,324.2	)			-				(31,314.9	)
Transfers from right-of-use assets			-				-				1.9				-				-				1.9
Transfers from assets subject to operating leases			-				-				53.5				-				-				53.5
Transfers to assets subject to operating leases			-				-				(45.7	)			-				-				(45.7	)
Effect of exchange rate changes			0.7				(394.4	)			(2,299.7	)			(52.6	)			-				(2,746.0	)


Balance at December 31, 2023		$	558.1			$	387,013.9			$	3,699,008.5			$	66,750.0			$	790.7			$	4,154,121.2


Carrying amounts at December 31, 2023		$	7,063.9			$	430,809.1			$	1,685,977.1			$	33,075.1			$	907,499.1			$	3,064,424.3

Property plant and equipment including subject and not subject to operating leases [member]

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

Summary of Property, Plant and Equipment


	December 31, 2021			December 31, 2022			December 31, 2023
		NT$			NT$			NT$
		(In Millions)			(In Millions)			(In Millions)

Assets used by the Company		$	1,975,114.0		$	2,693,815.7		$	3,064,424.3
Assets subject to operating leases			4.7			21.3			50.7


		$	1,975,118.7		$	2,693,837.0		$	3,064,475.0