
		2023
		Beginning balance			Acquisition		Disposal			Depreciation			Impairment (*)			Others			Ending balance
		In millions of won


Land	￦		14,270,937			23,519		(15,302	)		—			—			118,934			14,398,088
(Government grants)			(27,405	)		—		1			—			—			—			(27,404	)
Buildings			13,292,200			3,706		(6,221	)		(938,549	)		—			1,009,068			13,360,204
(Government grants)			(50,437	)		—		—			5,070			—			(860	)		(46,227	)
Structures			50,449,235			18,486		(311,877	)		(2,828,065	)		—			3,562,222			50,890,001
(Government grants)			(165,608	)		—		1,611			9,562			—			(3,446	)		(157,881	)
Machinery			54,191,785			184,532		(195,673	)		(6,062,471	)		(6,331	)		5,705,204			53,817,046
(Government grants)			(127,126	)		—		1,230			17,413			—			(11,341	)		(119,824	)
Ships			13,476			—		—			(1,812	)		—			701			12,365
Vehicles			87,687			5,778		(76	)		(40,760	)		—			30,745			83,374
(Government grants)			(2,045	)		—		—			960			—			(1,752	)		(2,837	)
Equipment			435,741			62,291		(264	)		(206,894	)		—			140,001			430,875
(Government grants)			(6,608	)		—		—			2,011			—			(1,335	)		(5,932	)
Tools			178,501			30,598		(364	)		(78,487	)		—			34,226			164,474
(Government grants)			(99	)		—		—			38			—			(1	)		(62	)
Construction-in-progress			28,041,471			14,069,968		(1,511	)		—			(10,700	)		(10,090,726	)		32,008,502
(Government grants)			(135,926	)		5,544		—			—			—			(43,092	)		(173,474	)
Right-of-use assets			3,711,125			261,862		(2,613	)		(536,517	)		—			(70,114	)		3,363,743
Asset retirement costs			11,288,967			—		—			(1,251,446	)		—			(303,947	)		9,733,574
Others			2,419,437			1,290		—			(958,649	)		—			684,852			2,146,930

	￦		177,865,308			14,667,574		(531,059	)		(12,868,596	)		(17,031	)		759,339			179,875,535

(*)

The Company calculated the actual damage in relation to the fire incident at Taean IGCC gas refinery in January 2023, and recognized ￦6,331 million as an impairment loss. In addition, as the recoverable amount of construction-in-progress of Guam Ukudu Power LLC, a subsidiary of the Group, is less than the book value, ￦10,700 million was recognized as an impairment loss for the year ended December 31, 2023.


		2024
		Beginning balance			Acquisition		Disposal			Depreciation			Impairment			Others			Ending balance
		In millions of won


Land	￦		14,398,088			28,390		(38,162	)		—			—			159,739			14,548,055
(Government grants)			(27,404	)		—		1			—			—			—			(27,403	)
Buildings			13,360,204			3,767		(13,366	)		(984,288	)		(1,351	)		1,032,495			13,397,461
(Government grants)			(46,227	)		—		—			4,508			—			1			(41,718	)
Structures			50,890,001			16,201		(303,046	)		(2,873,012	)		(9,154	)		4,071,949			51,792,939
(Government grants)			(157,881	)		—		1,330			9,458			—			(2,644	)		(149,737	)
Machinery			53,817,046			341,652		(199,670	)		(6,311,423	)		(735	)		9,308,861			56,955,731
(Government grants)			(119,824	)		—		522			16,076			—			(2,320	)		(105,546	)
Ships			12,365			—		—			(1,865	)		—			34			10,534
Vehicles			83,374			4,311		(223	)		(43,837	)		—			37,826			81,451
(Government grants)			(2,837	)		—		8			1,233			—			(1,149	)		(2,745	)
Equipment			430,875			84,020		(236	)		(210,376	)		—			133,813			438,096
(Government grants)			(5,932	)		—		—			2,118			—			(101	)		(3,915	)
Tools			164,474			32,825		(68	)		(82,603	)		—			59,108			173,736
(Government grants)			(62	)		—		—			341			—			(1,585	)		(1,306	)
Construction-in-progress			32,008,502			14,335,323		—			—			—			(15,059,467	)		31,284,358
(Government grants)			(173,474	)		6,806		75			—			—			(56,973	)		(223,566	)
Right-of-use assets			3,363,743			132,495		(2,252	)		(538,995	)		—			91,405			3,046,396
Asset retirement costs			9,733,574			—		—			(1,809,280	)		—			1,824,150			9,748,444
Others			2,146,930			1,704		—			(1,011,161	)		—			924,025			2,061,498

	￦		179,875,535			14,987,494		(555,087	)		(13,833,106	)		(11,240	)		2,519,167			182,982,763