Other Operating Income and Expenses

12 Months Ended

Dec. 31, 2025

28.	Other Operating Income and Expenses

Details of other operating income and

expenses for the years ended December 31, 2025, 2024 and 2023 are as follows:


(In millions of won)
	2025		2024		2023
Other operating income:
Gain on disposal of property and equipment and intangible assets	₩	127,058		37,316		21,898
Others(*1)		43,376		34,972		28,468

	₩	170,434		72,288		50,366

Other operating expenses:
Communication	₩	32,294		34,037		32,238
Utilities		591,507		547,204		511,240
Taxes and dues		68,852		44,888		29,009
Repair		425,698		438,089		431,964
Research and development		339,507		378,079		369,507
Training		29,804		30,949		39,286
Bad debt for accounts receivable – trade		44,183		49,865		37,906
Travel		14,936		19,090		22,499
Supplies and others(*2)		317,414		116,920		130,330
Loss on disposal of property and equipment and intangible assets		15,296		17,427		9,369
Impairment loss on assets held for sale		12,320		—		—
Impairment loss on property and equipment and intangible assets		3,140		94,736		10,369
Donations		15,339		15,712		14,766
Bad debt for accounts receivable – other		3,282		4,838		5,256
Others(*1,3)		145,771		72,122		7,534

	₩	2,059,343		1,863,956		1,651,273

(*1)

See note 4 (2).

(*2)

Supplies and others operating expenses include ₩211,998 million

of costs incurred in response to the cybersecurity incident related to cellular services segment during the year ended December 31, 2025. The portion of these estimated costs that remained unpaid as of December 31, 2025 are recognized as a provision. (See note 19)

(*3)

Others include penalties of ₩134,799 million

imposed by the Personal Information Protection Commission in connection with the cybersecurity incident related to cellular services segment during that occurred cellular service segment during the year ended December 31, 2025.