(3)	Details of expense relating to defined benefit plans for the years ended December 31, 2020, 2021 and 2022 are as follows:


		2020			2021			2022

		In millions of won
Current service cost	￦		509,520			524,942			496,722
Interest cost			83,248			91,877			116,256
Expected return on plan assets			(42,742	)		(52,782	)		(73,484	)
Past service cost			(2,027	)		5,483			125
Loss from settlement			—			—			—

	￦		547,999			569,520			539,619

Expenses described above are recognized in those items below in the consolidated financial statements.


		2020		2021		2022

		In millions of won
Cost of sales	￦		397,442		416,287		404,243
Selling and administrative expenses			94,846		95,983		81,457
Others (Construction-in-progress and others)			55,711		57,250		53,919

	￦		547,999		569,520		539,619

In addition, for the years ended December 31, 2020, 2021 and 2022, employee benefit obligations expenses of, ￦60,587 million, ￦71,976 million and ￦101,369 million, respectively, are recognized as cost of sales, and ￦9,121 million, ￦17,144 million and, ￦28,301 million, respectively, are recognized as selling and administrative expenses, and ￦11,861 million, ￦13,025 million and ￦14,827 million, respectively, are recognized as

construction-in-progress

and others, relates to the Company’s defined contribution plans.

(4)	Details of defined benefit obligations as of December 31, 2021 and 2022 are as follows:


		2021			2022

		In millions of won
Present value of defined benefit obligation from funded plans	￦		4,564,417			3,776,715
Fair value of plan assets			(2,909,547	)		(3,149,414	)

Net liabilities incurred from defined benefit plans	￦		1,654,870			627,301

(5)	Changes in the present value of defined benefit obligations for the years ended December 31, 2021 and 2022 are as follows:


		2021			2022

		In millions of won
Beginning balance	￦		4,570,614			4,564,417
Current service cost			524,942			496,722
Interest cost			91,877			116,256
Remeasurement component			(345,755	)		(1,012,727	)
Past service cost			5,483			125
Actual payments			(282,794	)		(388,105	)
Others			50			27

Ending balance	￦		4,564,417			3,776,715

(6)	Changes in the fair value of plan assets for the years ended December 31, 2021 and 2022 are as follows:


		2021			2022

		In millions of won
Beginning balance	￦		2,670,832			2,909,547
Expected return			52,782			73,484
Remeasurement component			(8,457	)		(11,609	)
Contributions by the employers			317,707			347,778
Actual payments			(123,317	)		(169,786	)

Ending balance	￦		2,909,547			3,149,414

In addition, gain on accumulated remeasurement component amounting to ￦98,844 million and gain on accumulated remeasurement component amounting to ￦614,805 million have been recognized as other comprehensive income or loss for the years ended December 31, 2021 and 2022, respectively.

(7)	Details of the fair value of plan assets as of December 31, 2021 and 2022 are as follows:


		2021		2022

		In millions of won
Equity instruments	￦		344,002		171,301
Debt instruments			744,167		854,640
Bank deposits			407,809		590,103
Others (*)			1,413,569		1,533,370

	￦		2,909,547		3,149,414

(*)

‘Others’ consist of various financial assets managed by external asset management companies.

For the years ended December 31, 2021 and 2022, actual returns on plan assets amounted to ￦44,325 and ￦61,875 million, respectively.

(8)	Remeasurement components recognized in other comprehensive income (loss) for the years ended December 31, 2021 and 2022 are as follows:


		2021			2022

		In millions of won
Actuarial gain from changes in financial assumptions	￦		(258,194	)		(967,366	)
Experience adjustments, etc.			(87,561	)		(45,361	)
Expected return			8,457			11,609

	￦		(337,298	)		(1,001,118	)

Remeasurement components recognized as other comprehensive income or loss are included in retained earnings.