[Chunghwa Telecom Reports Un-audited Consolidated Operating Results TAIPEI, Taiwan, R.O.C. April 30, 2015 — Chunghwa Telecom Co., Ltd. (TAIEX: 2412, NYSE: CHT) (“Chunghwa” or “the Company”) today reported its un-audited operating results for the first quarter of 2015. All figures were prepared in accordance with Taiwan-International Financial Reporting Standards (“Taiwan-IFRSs”) on a consolidated basis. (Comparisons throughout the press release, unless] [FORM 6-K May 4, 2015 Chunghwa Telecom Co., Ltd. ——————————————————————————————————— Room 110, Finance Department of Headquarters, 21-3 Hsinyi Road, Sec. 1, Taipei, Taiwan ——————————————————————————————————— x x n/a Chunghwa Telecom Co., Ltd. Bo Yung Chen Bo Yung Chen Chief Financial Officer Description 99.1 Press Release to Report Un-audited Consolidated Operating Results for the First Quarter of 2015 6-K 1 htm_9439.htm LIVE]

[Subject: To announce the differences between the year of 2014 financial statements under Taiwan-IFRSs and IFRSs To which item it meets: Article 2 paragraph 47 Statement: 1. Date of occurrence of the event: 2015/4/28 2. Reasons of occurrence of the event: To announce the differences between the year of 2014 financial statements under International Financial Reporting Standards as adopted by] [FORM 6-K April 28, 2015 Chunghwa Telecom Co., Ltd. ——————————————————————————————————— Room 110, Finance Department of Headquarters, 21-3 Hsinyi Road, Sec. 1, Taipei, Taiwan ——————————————————————————————————— x x n/a Chunghwa Telecom Co., Ltd. Bo Yung Chen Bo Yung Chen Chief Financial Officer Description 99.1 To announce the differences between the year of 2014 financial statements under Taiwan-IFRSs and IFRSs 6-K 1 htm_9418.htm]

[The Company to participate in investor conference held by Credit Suisse Date of events: 2015/03/13 Contents: 1. Date of the investor conference: 2015/03/25~2015/03/26 2. Time of the investor conference: 8:30AM 3. Location of the investor conference: Hong Kong 4. Brief information disclosed in the investor conference: The conference will be held by Credit Suisse 5. http://newmops.tse.com.tw/ The presentation of the] [The Company to participate in investor conference held by Bank of America Merrill Lynch Date of events: 2015/03/13 Contents: 1. Date of the investor conference: 2015/03/18 2. Time of the investor conference: 9:30AM 3. Location of the investor conference: Taipei 4. Brief information disclosed in the investor conference: The conference will be held by Bank of America Merrill Lynch 5.] [Chunghwa Telecom announces its operating results for March 2015 Date of events: 2015/04/10 Contents: 1. Date of occurrence of the event: 2015/04/10 2. 3. Relationship to the Company (please enter ”head office” or ”subsidiaries”): head office 4. Reciprocal shareholding ratios: N.A. 5. Name of the reporting media: N.A. 6. Content of the report: N.A. 7. Cause of occurrence: Chunghwa Telecom] [Chunghwa Telecom April 10, 2015 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 Mar 2015 1) Sales volume (NT$ Thousand) Period Items 2015 2014 Changes Mar Net sales 18,058,732 17,442,491 (+)616,241 (+)3.53%] [FORM 6-K April 13, 2015 Chunghwa Telecom Co., Ltd. ——————————————————————————————————— Room 110, Finance Department of Headquarters, 21-3 Hsinyi Road, Sec. 1, Taipei, Taiwan ——————————————————————————————————— x x n/a Chunghwa Telecom Co., Ltd. Bo Yung Chen Bo Yung Chen Chief Financial Officer Description 99.1 Announcement on 2015/03/13 : The Company to participate in investor conference held by Credit Suisse 99.2 Announcement on]

[Announcement for the Convention of 2015 Annual General Shareholders’ Meeting of Taipei, Taiwan, R.O.C. March 16, 2015 – As provided in Article 165 of the ROC Company Act, the shareholder register shall be closed for registration of share transfer from April 28 to June 26, 2015. Any person who has acquired Chunghwa’s shares but not registered as a holder of] [FORM 6-K March 16, 2015 Chunghwa Telecom Co., Ltd. ——————————————————————————————————— Room 110, Finance Department of Headquarters, 21-3 Hsinyi Road, Sec. 1, Taipei, Taiwan ——————————————————————————————————— x x n/a Chunghwa Telecom Co., Ltd. Bo Yung Chen Bo Yung Chen Chief Financial Officer Description 99.1 Press Release, Dated March 16, 2015, Relating to the Announcement for the Convention of 2015 Annual General Shareholders’]