[Chunghwa Telecom Reports Un-Audited Consolidated Operating Results TAIPEI, Taiwan, R.O.C. January 28, 2016 — Chunghwa Telecom Co., Ltd. (TAIEX: 2412, NYSE: CHT) (“Chunghwa” or “the Company”) today reported its un-audited operating results for the fourth quarter and full year of 2015. All figures were prepared in accordance with Taiwan-International Financial Reporting Standards (“T-IFRSs”) on a consolidated basis. (Comparisons throughout the] [FORM 6-K January 28, 2016 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 2016/1/28 : Chunghwa Telecom Reports Un-Audited Consolidated Operating Results for the Fourth Quarter and Full Year]

[Chunghwa Telecom Reports 2016 Guidance TAIPEI, Taiwan, R.O.C. January 27, 2016 — Chunghwa Telecom Co., Ltd. (TAIEX: 2412, NYSE: CHT) (“Chunghwa” or “the Company”) today reported its guidance for 2016 on a consolidated basis. All figures were prepared in accordance with Taiwan-International Financial Reporting Standards (“T-IFRSs”). Dr. Rick L. Tsai, Chairman and CEO of Chunghwa Telecom stated, “We are pleased] [FORM 6-K January 27, 2016 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 2016/1/27 : Chunghwa Telecom Reports 2016 Guidance 6-K 1 htm_10002.htm LIVE FILING]

[To announce the Standard & Poor maintains its ratings on Chunghwa ‘AA’ Long-term foreign currency corporate rating Date of events: 2015/12/18 Contents: 1. Date of occurrence of the event: 2015/12/18 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] [Chunghwa Telecom holds investor conference for the fourth quarter of 2015 operation results Date of events: 2015/12/30 Contents: 1. Date of the investor conference:2016/01/28 2. Time of the investor conference: 16:00 3. Location of the investor conference: Teleconference 4. Brief information disclosed in the investor conference: Please refer to http://www.cht.com.tw/chtir at 15:30 on January 28, 2016 Taipei time 5. http://newmops.tse.com.tw/] [Chunghwa Telecom announces its operating results for December 2015 Date of events: 2016/1/8 Contents: 1. Date of occurrence of the event: 2016/1/8 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 January 8, 2016 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 Dec 2015 1) Sales volume (NT$ Thousand) Period Items 2015 2014 Changes Dec Net sales 21,103,776 21,049,932 (+)53,844 (+)0.26 %] [FORM 6-K January 8, 2016 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 2015/12/18 : To announce the Standard & Poor maintains its ratings on Chunghwa 'AA' Long-term foreign]

[To announce the differences between the Q3 2015 financial statements under Taiwan-IFRSs and under IFRSs Date of events: 2015/11/11 Contents: 1. Date of occurrence of the event: 2015/11/11 2. Cause of occurrence: To announce the differences between the third quarter of 2015 financial statements under International Financial Reporting Standards as adopted by ROC (“Taiwan-IFRSs’) and International Financial Reporting Standards as] [The Company to participate in investor conference held by JPMorgan Date of events: 2015/11/13 Contents: 1. Date of the investor conference:2015/11/16~2015/11/17 2. Time of the investor conference: 9:00 a.m. 3. Location of the investor conference: Hong Kong 4. Brief information disclosed in the investor conference: The conference will be held by JPMorgan 5. http://newmops.tse.com.tw/ The presentation of the investor conference] [Announcement on 2015/12/7 : Supplementary Announcement of the bid of Mobile Broadband business license and won the spectrum of 2x30 MHz on December 7th, 2015 Date of events: 2015/12/7 Contents: 1. Name and nature of the subject matter (if preferred shares, the terms and conditions of issuance shall also be indicated, e.g. dividend yield): The 2500MHz and 2600MHz frequency bands] [Chunghwa Telecom accumulated EPS NT$5.13 for November 2015, exceeding 2015 full-year guidance, and 2013 and 2014 full-year results Date of events: 2015/12/10 Contents: 1. Date of occurrence of the event: 2015/12/10 2. 3. Relationship to the Company (please enter ”head office” or ”subsidiaries”): head office 4. Reciprocal shareholding ratios: N.A. 5. Name of the reporting media: N.A. 6. Content of] [Chunghwa Telecom December 10, 2015 This is to report the changes or status of 1) Sales volume 2) Funds lent to other parties 3) Endorsements and guarantees 4) Financial derivative transactions for the period of Nov 2015 1) Sales volume (NT$ Thousand) Period Items 2015 2014 Changes Nov Net sales 20,763,742 19,550,839 (+)1,212,903 (+)6.20 %] [FORM 6-K December 10, 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 2015/11/11 : To announce the differences between the Q3 2015 financial statements under Taiwan-IFRSs and under]

[To announce the differences between the Q3 2015 financial statements under Taiwan-IFRSs and under IFRSs Date of events: 2015/11/11 Contents: 1. Date of occurrence of the event: 2015/11/11 2. Cause of occurrence: To announce the differences between the third quarter of 2015 financial statements under International Financial Reporting Standards as adopted by ROC (“Taiwan-IFRSs’) and International Financial Reporting Standards as] [The Company to participate in investor conference held by JPMorgan Date of events: 2015/11/13 Contents: 1. Date of the investor conference:2015/11/16~2015/11/17 2. Time of the investor conference: 9:00 a.m. 3. Location of the investor conference: Hong Kong 4. Brief information disclosed in the investor conference: The conference will be held by JPMorgan 5. http://newmops.tse.com.tw/ The presentation of the investor conference] [Announcement on 2015/12/7 : Supplementary Announcement of the bid of Mobile Broadband business license and won the spectrum of 2x30 MHz on December 7th, 2015 Date of events: 2015/12/7 Contents: 1. Name and nature of the subject matter (if preferred shares, the terms and conditions of issuance shall also be indicated, e.g. dividend yield): The 2500MHz and 2600MHz frequency bands] [Chunghwa Telecom accumulated EPS NT$5.13 for November 2015, exceeding 2015 full-year guidance, and 2013 and 2014 full-year results Date of events: 2015/12/10 Contents: 1. Date of occurrence of the event: 2015/12/10 2. 3. Relationship to the Company (please enter ”head office” or ”subsidiaries”): head office 4. Reciprocal shareholding ratios: N.A. 5. Name of the reporting media: N.A. 6. Content of] [Chunghwa Telecom December 10, 2015 This is to report the changes or status of 1) Sales volume 2) Funds lent to other parties 3) Endorsements and guarantees 4) Financial derivative transactions for the period of Nov 2015 1) Sales volume (NT$ Thousand) Period Items 2015 2014 Changes Nov Net sales 20,763,742 19,550,839 (+)1,212,903 (+)6.20 %] [FORM 6-K December 10, 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 2015/11/11 : To announce the differences between the Q3 2015 financial statements under Taiwan-IFRSs and under]

[Subject : To announce the differences between the third quarter of 2015 financial statements under Taiwan-IFRSs and IFRSs To which item it meets: Article 4.1.(47) Statement: 1. Date of occurrence of the event: 2015/11/11 2. Cause of occurrence: To announce the differences between the third quarter of 2015 financial statements under International Financial Reporting Standards as adopted by ROC (“Taiwan-IFRSs’)] [Chunghwa Telecom Co., Ltd. and Subsidiaries Consolidated Financial Statements for the Nine Months Ended September 30, 2015 and 2014 and Independent Auditors’ Review Report INDEPENDENT AUDITORS’ REVIEW REPORT The Board of Directors and Stockholders Chunghwa Telecom Co., Ltd. We have reviewed the accompanying consolidated balance sheets of Chunghwa Telecom Co., Ltd. and subsidiaries (“the Company”) as of September 30, 2015] [Chunghwa Telecom Co., Ltd. and Subsidiaries Consolidated Financial Statements for the Nine Months Ended September 30, 2015 and 2014 CHUNGHWA TELECOM CO., LTD. AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS (In Millions of New Taiwan Dollars) September 30, 2015 (Unaudited) December 31, 2014 (Audited) September 30, 2014 (Unaudited) Amount % Amount % Amount % ASSETS CURRENT ASSETS] [Chunghwa Telecom Co., Ltd. Bo Yung Chen Chief Financial Officer 2 Description 99.1 To announce the differences between the third quarter of 2015 financial statements under Taiwan-IFRSs and IFRSs 99.2 99.3 Consolidated Financial Statements for the Nine Months Ended Sep. 30, 2015 in accordance with International Financial Reporting Standards issued by the International Accounting Standards Board (“IFRSs”) 3 6-K 1]