Chunghwa Telecom (NYSE: CHT) reports Dec 2025 results and full-year sales

Rhea-AI Filing Summary

Chunghwa Telecom furnished a 6-K that combines a legal update and December 2025 operating data. The company reported that on January 5, 2026, the Taiwan Yilan District Prosecutors Office directed investigators to raid staff offices at its local business operation centers; Chunghwa stated it fully cooperated and that there was no effect on its finances or business.

For December 2025, consolidated revenue was about NT$23.26 billion, operating income NT$3.43 billion, net income attributable to stockholders of the parent NT$2.68 billion, EBITDA NT$6.86 billion, and earnings per share NT$0.35. For the twelve months ended December 31, 2025, revenue was about NT$236.11 billion, operating income NT$48.55 billion, net income NT$38.69 billion, EBITDA NT$88.77 billion, and EPS NT$4.99. Net sales for December 2025 were NT$23,264,555 thousand, down 6.76% from December 2024, while full-year 2025 net sales of NT$236,114,409 thousand rose 2.67%. The filing also notes no funds lent by the parent or subsidiaries, limited guarantees, and modest non-trading foreign-exchange forward contracts with small reported fair values and gains.

1934 Act Registration No. 1-31731

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 OF
THE SECURITIES EXCHANGE ACT OF 1934

Dated January 12, 2026

Chunghwa Telecom Co., Ltd.

(Translation of Registrant’s Name into English)

21-3 Xinyi Road Sec. 1,

Taipei, Taiwan, 100 R.O.C.

(Address of Principal Executive Office)

(Indicate by check mark whether the registrant files or will file annual reports under cover of form 20-F or Form 40-F.)

Form 20-F ☒ Form 40-F ☐

(Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.)

Yes ☐ No ☒

(If “Yes” is marked, indicated below the file number assigned to the registrant in connection with Rule 12g3-2(b): Not applicable)

1

EXHIBIT INDEX

Exhibit		Description
99.1		Announcement on 2026/1/5:	Taiwan Yilan District Prosecutors Office raided the staff offices of the local business operation centers of the Company
99.2 99.3		Announcement on 2026/1/12: Announcement on 2026/1/12:	Chunghwa Telecom announced its operating results for December 2025 December 2025 sales

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant Chunghwa Telecom Co., Ltd. has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: January 12, 2026

Chunghwa Telecom Co., Ltd.

By:  /s/ Wen-Hsin Hsu

Name: Wen-Hsin Hsu

Title: Chief Financial Officer

EXHIBIT 99.1

3

Taiwan Yilan District Prosecutors Office raided the staff offices of the local business operation centers of the Company

Date of events:2026/01/05

Contents:

1.Date of occurrence of the event: 2026/01/05

2.Cause of occurrence: Taiwan Yilan District Prosecutors Office directed the Yilan Investigation Branch of the Investigation Bureau, Ministry of Justice to raid the staff offices of the local business operation centers of the Company.

3.Countermeasures: The Company was in full cooperation with the investigation.

4.Effect on the Company's finances and business: None

5.Any other matters that need to be specified: None

4

EXHIBIT 99.2

Chunghwa Telecom announced its operating results for December 2025

Date of events:2026/01/12

Contents:

1.Date of occurrence of the event: 2026/01/12

2.Company name: Chunghwa Telecom Co., Ltd.

3.Relationship to the Company (please enter "head office" or "subsidiaries"): Head office

4.Reciprocal shareholding ratios: N/A

5.Cause of occurrence:

Chunghwa Telecom announced its unaudited operating results on a consolidated basis for December 2025:

The Company's revenue for December 2025 was approximately NT$23.26 billion, income from operation was approximately NT$3.43 billion, net income attributable to stockholders of the parent was approximately NT$2.68 billion, EBITDA was approximately NT$6.86 billion and earnings per share was NT$0.35.

The Company's revenue for the twelve months ended December 31, 2025 was approximately NT$236.11 billion, income from operation was approximately NT$48.55 billion, net income attributable to stockholders of the parent was approximately NT$38.69 billion, EBITDA was approximately NT$88.77 billion and earnings per share was NT$4.99.

6.Countermeasures: None

7.Any other matters that need to be specified (the information disclosure also meets the requirements of Article 7, subparagraph 9 of the Securities and Exchange Act Enforcement Rules, which brings forth a significant impact on shareholders rights or the price of the securities on public companies.): None

EXHIBIT 99.3

5

Chunghwa Telecom

January 12, 2026

This is to report the changes or status of 1) Sales volume 2) Funds lent to other parties 3) Endorsements and guarantees 4) Financial derivative transactions for the period of December 2025

1) Sales volume (NT$ Thousand)

Period		Items		2025		2024		Changes		%
Dec		Net sales		23,264,555		24,951,105		(-) 1,686,550		(-) 6.76%
Jan-Dec		Net sales		236,114,409		229,968,292		(+) 6,146,117		(+) 2.67%

2) Funds lent to other parties (NT$ thousand)

Lending Company	Current Month	Last Month	Specified Amount
Parent Company	0	0	0
Subsidiaries	0	0	0

3) Endorsements and guarantees (NT$ thousand)

Guarantor	Increase (Decrease)	Accumulated	Limited Amount
Parent Company	0	0	0
Subsidiaries	0	500,000	3,129,950

4) Financial derivative transactions accumulated from January to the reporting month (NT$ thousand)

a-1 Non-trading purpose (that does not meet the criteria for hedge accounting)

		Forward Contract
Margins Paid		0
Premiums Received (Paid)		0
Outstanding Position	Total amount of contract	88,878
	Fair Value	3,204
	The amount of unrealized gain(loss) recognized this year	3,177
Settled Position	Total amount of contract	265,092

6

The amount of realized gain(loss) recognized this year -1,110

7

a-2 Non-trading purpose (that meets the criteria for hedge accounting)

		Forward Contract
Margins Paid		0
Premiums Received (Paid)		0
Outstanding Position	Total amount of contract	144,261
	Fair Value	3,148
	The amount of unrealized gain(loss) recognized this year	3,922
Settled Position	Total amount of contract	774,655
	The amount of realized gain(loss) recognized this year	1,570

b Trading purpose: None

8

FAQ

What operating results did Chunghwa Telecom (CHT) report for December 2025?

For December 2025, Chunghwa Telecom reported consolidated revenue of about NT$23.26 billion, operating income of about NT$3.43 billion, net income attributable to stockholders of the parent of about NT$2.68 billion, EBITDA of about NT$6.86 billion, and earnings per share of NT$0.35.

What were Chunghwa Telecom (CHT)'s full-year 2025 revenue and earnings?

For the twelve months ended December 31, 2025, Chunghwa Telecom reported revenue of about NT$236.11 billion, operating income of about NT$48.55 billion, net income attributable to stockholders of the parent of about NT$38.69 billion, EBITDA of about NT$88.77 billion, and earnings per share of NT$4.99.

How did Chunghwa Telecom's December 2025 sales compare with December 2024?

The net sales volume table shows December 2025 net sales of NT$23,264,555 thousand versus NT$24,951,105 thousand in December 2024, a decrease of NT$1,686,550 thousand or 6.76%.

Did Chunghwa Telecom (CHT) grow net sales for full-year 2025 versus 2024?

Yes. For January–December 2025, net sales were NT$236,114,409 thousand compared with NT$229,968,292 thousand in 2024, an increase of NT$6,146,117 thousand or 2.67%.

What legal or investigative event involving Chunghwa Telecom was disclosed?

The filing notes that on January 5, 2026, the Taiwan Yilan District Prosecutors Office directed the Yilan Investigation Branch of the Investigation Bureau, Ministry of Justice, to raid staff offices of Chunghwa Telecom's local business operation centers. The company stated it fully cooperated and that there was no effect on its finances and business.

What does Chunghwa Telecom report about funds lent, guarantees, and derivatives for December 2025?

The company reports no funds lent by the parent or subsidiaries during the period. Parent-company endorsements and guarantees were NT$0 thousand, while subsidiaries had accumulated guarantees of NT$500,000 thousand with a limited amount of NT$3,129,950 thousand. For non-trading foreign-exchange forward contracts that do not meet hedge accounting, outstanding contracts totaled NT$88,878 thousand with fair value of NT$3,204 thousand and unrealized gain of NT$3,177 thousand. For non-trading forwards that meet hedge accounting, outstanding contracts totaled NT$144,261 thousand with fair value of NT$3,148 thousand, unrealized gain of NT$3,922 thousand, and realized gain on settled contracts of NT$1,570 thousand.