[The Board approves to participate in the bid of Mobile Broadband business license Date of events: 2013/05/14 Contents: 1. Date of occurrence of the event: 2013/05/14 2. 3. Relationship to the Company (please enter ”head office” or ”subsidiaries”):Head office 4. Reciprocal shareholding ratios: N/A 5. Cause of occurrence: The NCC announced the rules for auction process of the Mobile Broadband] [To announce the differences between Taiwan-IFRSs and IFRSs for the first quarter of 2013 financial statements Date of events: 2013/05/15 Contents: 1. Date of occurrence of the event:2013/05/15 2. Cause of occurrence: To announce the differences between International Financial Reporting Standards as adopted by ROC (“Taiwan-IFRSs’) and International Financial Reporting Standards as issued by the IASB (“IFRSs”) for the first] [Chunghwa Telecom holds a non-deal roadshow in USA Date of events: 2013/05/28 Contents: 1. Date of the investor conference:2013/06/03~2013/06/06 2. Time of the investor conference:8:00AM 3. Location of the investor conference: New York, Boston, and San Francisco 4. Brief information disclosed in the investor conference: The meeting arrangement will be assisted by BOAml 5. The presentation of the investor conference] [The amendment of Chinese Annual Report 2012 Date of events: 2013/06/10 Contents: 1. Date of occurrence of the event:2013/06/10 2. 3. Relationship to the Company (please enter ”head office” or ”subsidiaries”):head office 4. Reciprocal shareholding ratios: N/A 5. Cause of occurrence: To amend the Chinese Annual Report 2012 on page 127. 6. Countermeasures: To revise and reupload the content. 7.] [To announce the Company's May 2013 revenues Date of events: 2013/06/10 Contents: 1. Date of occurrence of the event: 2013/06/10 2. 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 today announced a 3.1% year-over-year increase in unaudited consolidated revenue to NT$18.59 billion for May 2013.] [Chunghwa Telecom June 10, 2013 This is to report the changes or status of 1) Sales volume 2) Funds lent to other parties 3) Endorsements and guarantees 4) Financial derivative transactions for the period of May 2013 1) Sales volume (NT$ Thousand) Period Items 2013 2012 Changes % May Net sales 18,589,022 18,030,506 (+)558,516 (+)3.10 %] [FORM 6-K June 10, 2013 Chunghwa Telecom Co., Ltd. 21-3 Hsinyi Road Sec. 1, Taipei, Taiwan, 100 R.O.C. file annual reports under cover of Form 20-F or Form 40-F. X Form 20-F X Yes 82- Chunghwa Telecom Co., Ltd. Date : June 10, 2013 Shu Yeh]

[Subject : To announce the differences for the first quarter of 2013 financial statements between Taiwan-IFRSs and IFRSs To which item it meets : Article 2 paragraph 47 Statement : 1. Date of occurrence of the event : 2013/05/15 2. Reasons of occurrence of the event : To announce the differences for the first quarter of 2013 financial statements between] [Chunghwa Telecom Co., Ltd. and Subsidiaries Consolidated Financial Statements for the Three Months Ended March 31, 2013 and 2012 and Independent Accountants’ Review Report -1- INDEPENDENT ACCOUNTANTS’ 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 March 31,] [Chunghwa Telecom Co., Ltd. and Subsidiaries Consolidated Financial Statements for the Three Months Ended March 31, 2013 and 2012 -1- CHUNGHWA TELECOM CO., LTD. AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS (In Thousands of New Taiwan Dollars) March 31, 2013 December 31, 2012 March 31, 2012 January 1, 2012 Amount % Amount % Amount % Amount] [Chunghwa Telecom Co., Ltd. Shu Yeh Senior Executive Vice President CFO 2 Description 99.1]

[To announce the Disposal of Fidelity Funds–US Dollar Bond Fund Date of events: 2013/04/12 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):Fidelity Funds – US Dollar Bond Fund (Y-ACC-USD) 2. Date of occurrence of the event: 2013/04/12~2013/04/12 3. Volume, unit price, and total] [Supplementary announcement of the disposal of Fidelity Funds - US Dollar Bond Fund Date of events: 2013/04/15 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): Fidelity Funds – US Dollar Bond Fund (Y-ACC-USD) 2. Date of occurrence of the event: 2013/04/15~2013/04/15 3. Volume,] [To announce the Disposal of Janus Flexible Income I USD Inc Date of events: 2013/04/15 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): Janus Flexible Income I USD Inc. 2. Date of occurrence of the event:2013/04/15~2013/04/15 3. Volume, unit price, and total monetary] [Chunghwa Telecom holds investor conference call for the first quarter of 2013 operation results Date of events: 2013/04/16 Contents: 1. Date of the investor conference:2013/05/02 2. Time of the investor conference:5:00PM 3. Location of the investor conference: Teleconference 4. Brief information disclosed in the investor conference: Please refer to http://www.cht.com.tw/ir at 4:00PM on May 2, 2013 Taipei time 5. The] [To Announce the Disposal of Eastspring Investments - US Corporate Bond Fund Date of events: 2013/04/17 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): Eastspring Investments - US Corporate Bond Fund 2. Date of occurrence of the event:2013/04/17~2013/04/17 3. Volume, unit price, and] [Supplementary Announcement of the Disposal of Janus Flexible Income I USD Inc Date of events: 2013/04/15 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): Janus Flexible Income I USD Inc 2. Date of occurrence of the event:2013/04/15~2013/04/15 3. Volume, unit price, and total] [Supplementary Announcement of the Disposal of Eastspring Investments - US Corporate Bond Fund Date of events: 2013/04/17 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): Eastspring Investments - US Corporate Bond Fund 2 .Date of occurrence of the event:2013/04/17~2013/04/17 3. Volume, unit price,] [To announce the differences between ROC GAAP and US GAAP for the year of 2012 financial statements Date of events: 2013/04/22 Contents: 1. Date of occurrence of the event: 2013/04/22 2. Cause of occurrence: To announce the differences for the year of 2012 financial statements between ROC GAAP and US GAAP. 4. Any other matters that need to be specified:] [To announce the tender awarding of Banqiao Internet Data Center Construction Project Date of events: 2013/04/29 Contents: 1. Type of contract: Building construction contract 2. Date of occurrence of the event:2013/04/29~2013/04/29 3. Counterparty to the contract and relationship between it and the Company: Li Jin Engineering Co., LTD. 4. Major content of the contract (including total contract amount, anticipated monetary] [The Board approves the appointment of the management Date of events: 2013/04/30 Contents: 1. Date of occurrence of the event: 2013/04/30 2. 3. Relationship to the Company (please enter ”head office” or ”subsidiaries”):Head office 4. Reciprocal shareholding ratios: N/A 5. Cause of occurrence: The 22nd Meeting of the 6th Term Board of Directors approved the appointment of the management as] [Board of directors resolves to amend the subjects for the Company's 2013 annual general meeting Date of events: 2013/04/30 Contents: 1. Date of the board of directors resolution: 2013/04/30 2. Date for convening the shareholders' meeting: 2013/06/25 3. Location for convening the shareholders' meeting: Chunghwa Telecom Training Institute (No. 168, Minzu Road, Banchiao District, New Taipei City, Taiwan, R.O.C.) 4.] [To announce the board approves the procurement of Broadband Aggregation network equipment, MSER, and installation Date of events: 2013/04/30 Contents: 1. Name and nature of the subject matter (e.g. land located at Sublot XX, Lot XX, North District, Taichung City): Project A of Broadband Aggregation network equipment, MSER (Multi-Service Edge Router), and installation for 2013. 2. Date of the occurrence] [The Board resolves the cash distribution of dividend and capital surplus Date of events: 2013/04/30 Contents: 1. Date of the board of directors resolution :2013/04/30 2. Appropriations of earnings in cash dividends to shareholders (NT$ per share):NT$4.6295 per share 3. Cash dividends distributed from legal reserve and capital reserve to shareholders (NT$ per share):NT$0.7205 per share 4. Total amount of] [To announce the acquisition of PIMCO GIS Diversified Income Fund Date of events: 2013/05/03 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): PIMCO GIS Diversified Income Fund 2. Date of occurrence of the event:2013/01/10~2013/05/03 3. Volume, unit price, and total monetary amount of] [To announce the acquisition of PIMCO GIS Global Investment Grade Credit Fund Date of events: 2013/05/06 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): PIMCO GIS Global Investment Grade Credit Fund. 2. Date of occurrence of the event: 2012/07/23~2013/05/06 3. Volume, unit price,] [Supplementary Announcement of the acquisition of PIMCO GIS Diversified Income Fund Date of events: 2013/05/03 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): PIMCO GIS Diversified Income Fund 2. Date of occurrence of the event:2013/01/10~2013/05/03 3. Volume, unit price, and total monetary amount] [Supplementary announcement of the acquisition of PIMCO GIS Global Investment Grade Credit Fund Date of events: 2013/05/06 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): PIMCO GIS Global Investment Grade Credit Fund 2. Date of occurrence of the event:2012/07/23~2013/05/06 3. Volume, unit price,] [To announce the Company's April 2013 revenues Date of events: 2013/05/10 Contents: 1. Date of occurrence of the event:2013/05/10 2. 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 today announced a 2.6% year-over-year increase in unaudited consolidated revenue to NT$18.50 billion for April 2013. Operating] [Chunghwa Telecom May 10, 2013 This is to report the changes or status of 1) Sales volume 2) Funds lent to other parties 3) Endorsements and guarantees 4) Financial derivative transactions for the period of Apr 2013 1) Sales volume (NT$ Thousand) Period Items 2013 2012 Changes % Apr Net sales 18,497,278 18,021,275 (+)476,003 (+)2.64 %] [FORM 6-K May 10, 2013 Chunghwa Telecom Co., Ltd. 21-3 Hsinyi Road Sec. 1, Taipei, Taiwan, 100 R.O.C. file annual reports under cover of Form 20-F or Form 40-F. X Form 20-F X Yes 82- Chunghwa Telecom Co., Ltd. Date : May 10, 2013 Shu Yeh]

[Supplementary Announcement regarding the Company’s annual general meeting on June 25, 2013 1. Date of the board of directors resolution: 2013/04/30 2. Date for convening the shareholders' meeting: 2013/06/25 3. Location for convening the shareholders' meeting: Chunghwa Telecom Training Institute (No. 168, Minzu Road, Banchiao District, New Taipei City, Taiwan, R.O.C.) 4. Cause or subjects for convening the meeting: (1)] [FORM 6-K May 03, 2013 Chunghwa Telecom Co., Ltd. 21-3 Hsinyi Road Sec. 1, Taipei, Taiwan, 100 R.O.C. file annual reports under cover of Form 20-F or Form 40-F. X Form 20-F X Yes 82- Chunghwa Telecom Co., Ltd. Date : May 03, 2013 Shu Yeh]

[Chunghwa Telecom Reports Unaudited Consolidated Operating Results for the First Quarter of 2013 TAIPEI, Taiwan, R.O.C. May 2, 2013 - Chunghwa Telecom Co., Ltd. (TAIEX: 2412, NYSE: CHT) (“Chunghwa” or “the Company”) today reported its unaudited operating results for the first quarter of 2013. All figures were prepared in accordance with Taiwan-International Financial Reporting Standards (“T-IFRSs”) on a consolidated basis.] [FORM 6-K May 02, 2013 Chunghwa Telecom Co., Ltd. 21-3 Hsinyi Road Sec. 1, Taipei, Taiwan, 100 R.O.C. file annual reports under cover of Form 20-F or Form 40-F. X Form 20-F X Yes 82- Chunghwa Telecom Co., Ltd. Date : May 02, 2013 Shu Yeh]