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Segment Information (Tables)

12 Months Ended

Dec. 31, 2020

Disclosure Of Operating Segments [Abstract]

The segment information for the years ended December 31, 2020, 2019 and 2018.

	2020
	Revenue			Depreciation Amortization		Operating profit(*2)
	(In millions of Korean won)
Online	W	107,949		W	1,609	W	45,115
Mobile		336,326			1,823		42,493
Others		22,333			1,488		510
Sub total		466,608			4,920		88,118
Inter-segment eliminations(*1)		(60,655	)		—		250
Total	W	405,953		W	4,920	W	88,368

	2019
	Revenue				Depreciation Amortization		Operating profit(*2)
		(In millions of Korean won)
Online	W		48,182		W	1,401	W	7,754
Mobile			346,878			1,145		38,655
Others			19,352			1,107		562
Sub total			414,412			3,653		46,971
Inter-segment eliminations(*1)			(53,445	)		—		1,692
Total	W		360,967		W	3,653	W	48,663

	2018
	Revenue				Depreciation Amortization			Operating profit(*2)
		(In millions of Korean won)
Online	W		41,288		W	238		W	4,286
Mobile			257,364			473			24,795
Others			9,526			715			1,086
Sub total			308,178			1,426			30,167
Inter-segment eliminations(*1)			(21,408	)		(12	)		3,201
Total	W		286,770		W	1,414		W	33,368

(* 1) The Group reflects inter-segment eliminations as adjustments.

(* 2) Other profit or loss items that do not constitute operating profit (loss) are not separately disclosed because they are not reviewed by the chief operating decision maker by operating segment.

Summary Revenue from External Customers by Country

(2) Revenue from external customers by country for the years ended December 31, 2020, 2019 and 2018 are as follows:

	2020			2019		2018
		(In millions of Korean won)
Korea	W		109,895	W	45,273	W	80,814
Taiwan			100,049		52,118		98,210
Japan			22,500		28,469		9,767
The United States of America			20,659		55,062		10,572
Thailand			59,086		62,043		43,846
The Philippines			23,690		30,951		15,539
Indonesia			12,729		22,355		9,359
Other			57,345		64,696		18,663
Total	W		405,953	W	360,967	W	286,770

(*) Revenue was attributed to the country based on the customer’s location.

Summary of Non-Current Assets by Geographical Regions

Non-Current assets by geographical regions as of December 31, 2020, 2019 and 2018 are as follows:

	December 31, 2020		December 31, 2019		December 31, 2018
	(In millions of Korean won)
Domestic	W	7,612	W	5,732	W	3,054
Overseas		5,481		4,170		1,045
Total	W	13,093	W	9,902	W	4,099

(*) The amounts are exclusive of financial assets and deferred tax assets.

(3) No individual external customers accounted for more than 10% of consolidated revenue for the years ended December 31, 2020, 2019 and 2018.