Deferred Tax Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2023

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Summary Of Unused Tax Credit Carryforwards

As of December 31, 2023, the amount of unused tax credit carryforwards for which no deferred tax asset is recognized and their expiration dates are as follows:

(In millions of won)
	Total		December 31, 2025		December 31, 2026		December 31, 2027		December 31, 2028		December 31, 2029		December 31, 2030		December 31, 2031		December 31, 2032		December 31, 2033
Tax credit  carryforwards	₩	869,364		7,302		18,476		114,435		90,124		99,937		60,401		79,543		159,552		239,594

Details of Deferred Tax Assets and Liabilities

Deferred tax assets and liabilities are attributable to the following:

(In millions of won)	Assets				Liabilities						Total
	December 31, 2022		December 31, 2023		December 31, 2022			December 31, 2023			December 31, 2022			December 31, 2023
Other accounts    receivable, net	₩	—		—		(2,009	)		(61	)		(2,009	)		(61	)
Inventories, net		62,014		51,728		—			—			62,014			51,728
Defined benefit    liabilities, net		—		—		(95,850	)		(89,753	)		(95,850	)		(89,753	)
Investments in    subsidiaries and    associates		—		—		(252,375	)		(89,649	)		(252,375	)		(89,649	)
Accrued expenses		111,293		97,867		—			—			111,293			97,867
Property, plant and    equipment		704,117		609,345		(17,322	)		(43,282	)		686,795			566,063
Intangible assets		25,340		13,314		(4,042	)		(2,069	)		21,298			11,245
Provisions		57,210		39,586		—			—			57,210			39,586
Other temporary    differences		112,771		70,182		(26,519	)		(11,451	)		86,252			58,731
Tax loss    carryforwards		1,795,132		2,766,820		—			—			1,795,132			2,766,820
Tax credit    carryforwards		170,971		148,215		—			—			170,971			148,215
Deferred tax assets    (liabilities)	₩	3,038,848		3,797,057		(398,117	)		(236,265	)		2,640,731			3,560,792

Changes in Deferred Tax Assets and Liabilities

(d)Changes in deferred tax assets and liabilities for the years ended December 31, 2022 and 2023 are as follows:

(In millions of won)	January 1, 2022			Profit or loss			Other comprehensive Income(loss)			December 31, 2022			Profit or loss			Other comprehensive loss			December 31, 2023
Other accounts    receivable, net	₩	(17	)		(1,992	)		—			(2,009	)		1,948			—			(61	)
Inventories, net		68,679			(6,665	)		—			62,014			(10,286	)		—			51,728
Defined benefit    liabilities, net		(26,642	)		(25,705	)		(43,503	)		(95,850	)		20,915			(14,818	)		(89,753	)
Subsidiaries and    associates		(233,552	)		(20,503	)		1,680			(252,375	)		183,130			(20,404	)		(89,649	)
Accrued expenses		250,582			(139,289	)		—			111,293			(13,426	)		—			97,867
Property, plant and   equipment		603,492			83,303			—			686,795			(120,732	)		—			566,063
Intangible assets		10,814			10,484			—			21,298			(10,053	)		—			11,245
Provisions		68,893			(11,683	)		—			57,210			(17,624	)		—			39,586
Other temporary    differences		110,678			(21,158	)		(3,268	)		86,252			(27,521	)		—			58,731
Tax loss    carryforwards		958,624			836,508			—			1,795,132			971,688			—			2,766,820
Tax credit    carryforwards		489,505			(318,534	)		—			170,971			(22,756	)		—			148,215
Deferred tax assets    (liabilities)	₩	2,301,056			384,766			(45,091	)		2,640,731			955,283			(35,222	)		3,560,792