[Supplementary announcement for the tender awarding of Broadband Aggregation network equipment, MSER, and installation (group A) for 2013 Date of events: 2013/08/13 Contents: 1. Name and nature of the subject matter (e.g. land located at Sublot XX, Lot XX, North District, Taichung City):Broadband Aggregation network equipment, Multi-Service Edge Router(MSER), and installation (group A) for 2013. 2. Date of the occurrence] [To announce the differences between Taiwan-IFRSs and IFRSs for the second quarter of 2013 financial statements Date of events: 2013/08/14 Contents: 1. Date of occurrence of the event:2013/08/14 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 second] [Discharge of Representative of Juristic Person Director Date of events: 2013/08/15 Contents: 1. Date of occurrence of the change: 2012/08/15 2. Name of juristic-person director/ supervisor: Ministry of Transportation and Communications 3. Name and resume of the replaced person: Jin-Chu Lee; Chairperson of Taiwan Financial Holdings/Bank of Taiwan. 4. Name and resume of the replacement: To be appointed. 5. Reason] [To announce the Disposal of PIMCO GIS Global Investment Grade Credit Fund Date of events: 2013/08/20 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:2013/08/09~2013/08/20 3. Volume, unit price, and] [Supplementary Announcement of the Disposal of PIMCO GIS Global Investment Grade Credit Fund Date of events: 2013/08/22 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: 2013/08/09~2013/08/20 3. Volume, unit price,] [New appointment of Representative Juristic-Person Director Date of events: 2013/08/23 Contents: 1. Date of occurrence of the change:2013/08/23 2. Name of juristic-person director/ supervisor: Ministry of Transportation and Communications 3. Name and resume of the replaced person: Jin-Chu Lee; Chairperson of Taiwan Financial Holdings / Bank of Taiwan. 4. Name and resume of the replacement: Hui-Ling Wu, director of General] [Replacement of Representative Juristic-Person Director Date of events: 2013/08/28 Contents: 1. Date of occurrence of the change: 2013/08/28 2. Name of juristic-person director/ supervisor: Ministry of Transportation and Communications 3. Name and resume of the replaced person: Gordon S. Chen, Honor Lecturing Professor, Chung Yuan Christian University Department of Finance. 4. Name and resume of the replacement: Chich-Chiang Fan, Chairman] [The prosecutors concluded that no crimes were committed on the case of 3G-system procurement Date of events: 2013/09/02 Contents: 1. Date of occurrence of the event: 2013/09/02 2. 3. Relationship to the Company (please enter ”head office” or ”subsidiaries”): head office 4. Reciprocal shareholding ratios: N.A. 5. Cause of occurrence: Taipei District Prosecutors Office concluded that no crimes were committed] [Chunghwa Telecom participates in an investors conference Date of events: 2013/09/10 Contents: 1. Date of the investor conference: 2013/09/23~2013/09/25 2. Time of the investor conference: 9:30AM 3. Location of the investor conference: Hong Kong 4. Brief information disclosed in the investor conference: The conference will be held by CLSA 5. The presentation of the investor conference release: Please refer to] [To announce the Company's August 2013 revenues Date of events: 2013/09/10 Contents: 1. Date of occurrence of the event: 2013/09/10 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 1.1% year-over-year increase in unaudited consolidated revenue to NT$19.10 billion for August 2013.] [Chunghwa Telecom September 10, 2013 This is to report the changes or status of 1) Sales volume 2) Funds lent to other parties 3) Endorsements and guarantees 4) Financial derivative transactions for the period of Aug 2013 1) Sales volume (NT$ Thousand) Period Items 2013 2012 Changes % Aug Net sales 19,099,879 18,900,038 (+)199,841 (+)1.06 %] [FORM 6-K September 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 : September 10, 2013 Shu Yeh]

[Chunghwa Telecom Reports Audited Consolidated Operating Results for the Second Quarter of 2013 TAIPEI, Taiwan, R.O.C. August 14, 2013 - Chunghwa Telecom Co., Ltd. (TAIEX: 2412, NYSE: CHT) (“Chunghwa” or “the Company”) today reported its audited operating results for the second quarter of 2013. All figures were prepared in accordance with Taiwan-International Financial Reporting Standards (“T-IFRSs”) on a consolidated basis.] [Subject: To announce the differences for the second 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: 2013/08/13 2. Reasons of occurrence of the event: To announce the differences for the second quarter of 2013 financial statements between International Financial Reporting Standards as] [Chunghwa Telecom Co., Ltd. and Subsidiaries Consolidated Financial Statements for the Six Months Ended June 30, 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] [Chunghwa Telecom Co., Ltd. and Subsidiaries Consolidated Financial Statements for the Six Months Ended June 30, 2013 and 2012 - 1 - CHUNGHWA TELECOM CO., LTD. AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS (In Thousands of New Taiwan Dollars) June 30, 2013 December 31, 2012 June 30, 2012 January 1, 2012 ASSETS Amount % Amount % Amount % Amount] [Chunghwa Telecom Co., Ltd. Shu Yeh]

[To announce Hinet multimedia cache redirection device acquisition with total amount exceeding NT$500 million Date of events: 2013/07/30 Contents: 1. Name and nature of the subject matter (e.g.land located at Sublot XX, Lot XX, North District, Taichung City): Hinet multimedia cache redirection devices 2. Date of the occurrence of the event:2012/07/31~2013/07/30 3. Transaction volume (e.g.XX square meters, equivalent to XX] [To announce the Company's July 2013 revenues Date of events: 2013/08/09 Contents: 1. Date of occurrence of the event: 2013/08/09 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 0.8% year-over-year decrease in unaudited consolidated revenue to NT$18.63 billion for July 2013.] [Chunghwa Telecom holds investor conference for the second quarter of 2013 operation results Date of events: 2013/07/31 Contents: 1. Date of the investor conference:2013/08/14 2. Time of the investor conference: 2:00PM 3. Location of the investor conference: Room 1201, No. 21-3, Hsinyi Rd. Sec. 1, Taipei and teleconference 4. Brief information disclosed in the investor conference: Please refer to http://www.cht.com.tw/chtir] [To announce the Disposal of PIMCO GIS Global Investment Grade Credit Fund Date of events: 2013/08/01 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: 2013/08/01~2013/08/01 3. Volume, unit price, and] [To announce the Disposal of PIMCO GIS Total Return Bond Fund Date of events: 2013/08/01 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 Total Return Bond Fund 2. Date of occurrence of the event: 2013/08/01~2013/08/01 3. Volume, unit price, and total] [Supplementary Announcement of the Disposal of PIMCO GIS Global Investment Grade Credit Fund Date of events: 2013/08/01 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: 2013/08/01~2013/08/01 3. Volume, unit] [Supplementary announcement of the Disposal of PIMCO GIS Total Return Bond Fund Date of events: 2013/08/01 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 Total Return Bond Fund 2. Date of occurrence of the event: 2013/08/01~2013/08/01 3. Volume, unit price, and total] [Chunghwa Telecom August 09, 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 Jul 2013 1) Sales volume (NT$ Thousand) Period Items 2013 2012 Changes % Jul Net sales 18,633,180 18,782,183 (-)149,003 (-)0.79 %] [FORM 6-K August 09, 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 : August 09, 2013 Shu Yeh]

[Chunghwa Telecom participates in an investors conference Date of events: 2013/06/19 Contents: 1. Date of the investor conference:2013/06/27 2. Time of the investor conference: 8:00AM 3. Location of the investor conference: Taipei 4. Brief information disclosed in the investor conference: The conference will be held by UBS 5. The presentation of the investor conference release: Please refer to http://newmops.tse.com.tw/ 6.] [To announce the procurement of DSLAM VDSL2 (project B) Date of events: 2013/06/20 Contents: 1. Name and nature of the subject matter (e.g. land located at Sublot XX, Lot XX, North District, Taichung City): One lot of DSLAM VDSL2 for 2013 expansion plan (project B) 2. Date of the occurrence of the event: 2013/06/20~2013/06/20 3. Transaction volume (e.g.XX square meters,] [To announce the procurement of DSLAM VDSL2 (project A) Date of events: 2013/06/20 Contents: 1. Name and nature of the subject matter (e.g. land located at Sublot XX, Lot XX, North District, Taichung City): One lot of DSLAM VDSL2 for 2013 expansion plan (project A) 2. Date of the occurrence of the event: 2013/06/20~2013/06/20 3. Transaction volume (e.g.XX square meters,] [Major resolutions of 2013 Annual General Meeting Date of events: 2013/06/25 Contents: 1. Date of the shareholders' meeting: 2013/06/25 2. Important resolutions: (1) Ratification of 2012 business report and financial statements. (2)Ratification of the proposal for the distribution of 2012 earnings; the cash dividend is NT$4.6295 per share. (3)Approval of the proposal for a cash distribution from capital surplus; the] [New appointment of the President Date of events: 2013/06/25 Contents: 1. Date of the board of directors resolution or date of occurrence of the change: 2013/06/25 2. Name and resume of the replaced general manager: Mu-Piao Shih, President of Chunghwa Telecom Co., Ltd., Master of Electrical Engineering from National Taiwan University 3. Name and resume of the new general manager:] [Election of the Chairman Date of events: 2013/06/25 Contents: 1. Date of the board of directors resolution or date of occurrence of the change: 2013/06/25 2. Name and resume of the replaced chairman: Yen-Sung Lee, the Chairman of Chunghwa Telecom, Ph. D. in Information Engineering, National Chiao Tung University 3. Name and resume of the new chairman: Yen-Sung Lee, the] [Election of directors Date of events: 2013/06/25 Contents: 1. Date of occurrence of the change:2013/06/25 2. Name and resume of the replaced person: Representative of the Ministry of Transportation and Communications (MOTC): Yen-Sung Lee; Chairman & CEO of Chunghwa Telecom Representative of MOTC: Mu-Piao Shih; President of Chunghwa Telecom Representative of MOTC: Shyue-Ching Lu; Consultant of Chunghwa Telecom Representative of] [Replacement of members of Compensation Committee Date of events: 2013/06/25 Contents: 1. Date of occurrence of the change:2013/06/25 2. Name of the functional committees: Compensation Committee 3. Name and resume of the replaced member: Chung-Yu Wang, independent director of the company; Chung-Fern Wu, independent director of the company; Jeng-Fang Jong, representative of juristic-person director. 4. Name and resume of the] [To announce the record date for dividend distribution Date of events: 2013/06/25 Contents: 1. Date of the resolution by the board of directors or shareholders' meeting or decision by the Company: 2013/06/25 2. Type of ex-rights or ex-dividend (please enter: “Ex-rights”, ” Ex-dividend”, or ”Ex-rights and dividend”):Ex-dividend 3. Type and monetary amount of dividend distribution: Cash dividend of NT$4.6295 per] [Establish an audit committee Date of events: 2013/06/25 Contents: 1. Date of occurrence of the change:2013/06/25 2. Name of the functional committees: Audit committee 3. Name and resume of the replaced member: N/A 4. Name and resume of the new member: (1) Chung-Yu Wang: Independent director of the company, Chairman of Chinese International Economic Cooperation Association; Honorary Doctorate of Chung] [Election of independent directors Date of events: 2013/06/25 Contents: 1. Date of occurrence of the change:2013/06/25 2. Name and resume of the replaced director or supervisor: Zse-Hong Tsai; Professor of Electrical Engineering Department, National Taiwan University Chung-Yu Wang; Chairman of Chinese International Economic Cooperation Association Rebecca Chung-Fern Wu; Professor of Accounting Department, National Taiwan University 3. Name and resume of] [Supplementary announcement of election of directors and supervisors Date of events: 2013/06/25 Contents: 1. Date of occurrence of the change: 2013/06/25 2. Name and resume of the replaced person: Directors: Representative of the Ministry of Transportation and Communications (MOTC):Yen-Sung Lee; Chairman & CEO of Chunghwa Telecom Representative of MOTC: Mu-Piao Shih; President of Chunghwa Telecom Representative of MOTC: Shyue-Ching Lu;] [To announce the Company's June 2013 revenues Date of events: 2013/07/10 Contents: 1. Date of occurrence of the event:2013/07/10 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 2.0% year-over-year increase in unaudited consolidated revenue to NT$18.71 billion for June 2013.] [Chunghwa Telecom July 10, 2013 This is to report the changes or status of 1) Sales volume 2) Funds lent to other parties 3) Endorsements and guarantees 4) Financial derivative transactions for the period of Jun 2013 1) Sales volume (NT$ Thousand) Period Items 2013 2012 Changes % Jun Net sales 18,707,210 18,348,724 (+)358,486 (+)1.95 %] [FORM 6-K July 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 : July 10, 2013 Shu Yeh]

[Election of independent directors Date of events: 2013/06/25 Contents: 1. Date of occurrence of the change: 2013/06/25 2. Name and resume of the replaced director or supervisor: Zse-Hong Tsai; Professor of Electrical Engineering Department, National Taiwan University Chung-Yu Wang; Chairman of Chinese International Economic Cooperation Association Rebecca Chung-Fern Wu; Professor of Accounting Department, National Taiwan University 3. Name and resume] [FORM 6-K June 25, 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 25, 2013 Shu Yeh]

[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]