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Investments Accounted for Using Equity Method (Tables)

12 Months Ended

Dec. 31, 2024

Disclosure Of Significant Investments In Associates And Joint Ventures [Abstract]

Summary of Investments Accounted for Using Equity Method

		December 31
		2023				2024
		NT$				NT$
		(In Millions)
Investments in associates		$	8,243			$	8,870
Investment in joint venture			9				9
		$	8,252			$	8,879

Investments in Associates

a.Investments in associates

Investments in associates were as follows:

		Carrying Amount
		December 31
		2023				2024
		NT$				NT$
		(In Millions)
Material associate
Non-listed
Next Commercial Bank Co., Ltd. (“NCB”)		$	4,293			$	3,951
Associates that are not individually material
Listed
Senao Networks, Inc. (“SNI”)			1,409				1,849
KingwayTek Technology Co., Ltd. (“KWT”)			229				242
Non-listed
Viettel-CHT Co., Ltd. (“Viettel-CHT”)			543				573
Taiwan International Standard Electronics Co., Ltd. (“TISE”)			309				373
ST-2 Satellite Ventures Pte., Ltd. (“STS”)			285				313
Taiwania Hive Technology Fund L.P. (“TWTF”)			—				276
WiAdvance Technology Corporation (“WATC”)			212				274
Chunghwa PChome Fund I Co., Ltd. (“CPFI”)			258				253
So-net Entertainment Taiwan Limited (“So-net”)			226				193
KKBOX Taiwan Co., Ltd. (“KKBOXTW”)			165				151
Taiwan International Ports Logistics Corporation (“TIPL”)			120				132
Porrima Inc. (“PORRIMA”)			—				78
CHT Infinity Singapore Pte., Ltd. (“CISG”)			57				61
Imedtac Co., Ltd. (“IME”)			47				57
Click Force Co., Ltd. (“CF”)			42				51
AgriTalk Technology Inc. (“ATT”)			31				26
Baohwa Trust Co., Ltd. (“BHT”)			10				12
Cornerstone Ventures Co., Ltd. (“CVC”)			7				5
		$	8,243			$	8,870

The percentages of ownership interests and voting rights in associates held by the Company as of balance sheet dates were as follows:

		% of Ownership Interests and Voting Rights
		December 31
		2023				2024
Material associate
Non-listed
Next Commercial Bank Co., Ltd. (“NCB”)			46				46
Associates that are not individually material
Listed
Senao Networks, Inc. (“SNI”)			34				33
KingwayTek Technology Co., Ltd. (“KWT”)			23				23
Non-listed
Viettel-CHT Co., Ltd. (“Viettel-CHT”)			30				30
Taiwan International Standard Electronics Co., Ltd. (“TISE”)			40				40
ST-2 Satellite Ventures Pte., Ltd. (“STS”)			38				38
Taiwania Hive Technology Fund L.P. (“TWTF”)			—				42
WiAdvance Technology Corporation (“WATC”)			19				16
Chunghwa PChome Fund I Co., Ltd. (“CPFI”)			50				50
So-net Entertainment Taiwan Limited (“So-net”)			30				30
KKBOX Taiwan Co., Ltd. (“KKBOXTW”)			30				30
Taiwan International Ports Logistics Corporation (“TIPL”)			27				27
Porrima Inc. (“PORRIMA”)			—				10
CHT Infinity Singapore Pte., Ltd. (“CISG”)			40				40
Imedtac Co., Ltd. (“IME”)			7				10
Click Force Co., Ltd. (“CF”)			49				49
AgriTalk Technology Inc. (“ATT”)			29				29
Baohwa Trust Co., Ltd. (“BHT”)			25				25
Cornerstone Ventures Co., Ltd. (“CVC”)			49				49

Summarized financial information of NCB was set out below:

		December 31
		2023				2024
		NT$				NT$
		(In Millions)
Assets		$	37,431			$	48,637
Liabilities			(28,084	)			(40,043	)
Equity		$	9,347			$	8,594
The percentage of ownership interest held by the Company			46.26	%			46.26	%
Equity attributable to the Company		$	4,324			$	3,975
Unrealized gain or loss from downstream transactions			(31	)			(24	)
The carrying amount of investment		$	4,293			$	3,951

		Year Ended December 31
		2022				2023				2024
		NT$				NT$				NT$
						(In Millions)
Net Revenues (losses)		$	(47	)		$	10			$	314
Net loss for the period		$	(1,004	)		$	(969	)		$	(747	)
Other comprehensive income (loss)			(10	)			14				(6	)
Total comprehensive loss for the period		$	(1,014	)		$	(955	)		$	(753	)

Except for NCB, no associate is considered individually material to the Company. Summarized financial information of associates that are not individually material to the Company was as follows:

		Year Ended December 31
		2022				2023				2024
		NT$				NT$				NT$
						(In Millions)
The Company’s share of profits		$	868			$	647			$	494
The Company’s share of other comprehensive income (loss)			13				(23	)			40
The Company’s share of total comprehensive income		$	881			$	624			$	534

The Level 1 fair values of associates based on the closing market prices as of the balance sheet dates were as follows:

		December 31
		2023				2024
		NT$				NT$
		(In Millions)
SNI		$	4,062			$	3,838
KWT		$	988			$	897

Investments in Joint Ventures

b.Investment in joint venture

Investment in joint venture was as follows:

		Carrying Amount								% of Ownership Interests and Voting Rights
		December 31								December 31
Name of Joint Venture		2023				2024				2023				2024
Non-listed
Chunghwa SEA Holdings (“CHT SEA”)		$	9			$	9				51				51

Summarized financial information of CHT SEA was set out below:

		Year Ended December 31
		2022				2023				2024
		NT$				NT$				NT$
						(In Millions)
The Company’s share of loss		$	—			$	—			$	—
The Company’s share of other comprehensive    income			—				—				—
The Company’s share of total comprehensive loss		$	—			$	—			$	—

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