REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM The Board of Directors and Stockholders of Chunghwa Telecom Co., Ltd.  We have audited the internal control over financial reporting of Chunghwa Telecom Co., Ltd. and subsidiaries  (the “Company”) as of December 31, 2011, based on criteria established in Internal Control—Integrated Framework  issued by the Committee of Sponsoring Organizations of the Treadway Commission. The Company’s management is  responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness  of internal control over financial reporting, included in the accompanying “Management’s Annual Report on Internal  Control over Financial Reporting”. Our responsibility is to express an opinion on the Company’s internal control over  financial reporting based on our audit.  We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board  (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about  whether effective internal control over financial reporting was maintained in all material respects. Our audit included  obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness  exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and  performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a  reasonable basis for our opinion.  A company’s internal control over financial reporting is a process designed by, or under the supervision of, the  company’s principal executive and principal financial officers, or persons performing similar functions, and effected  by the company’s board of directors, management, and other personnel to provide reasonable assurance regarding the  reliability of financial reporting and the preparation of financial statements for external purposes in accordance with  generally accepted accounting principles. A company’s internal control over financial reporting includes those policies  and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect  the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are  recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting  principles, and that receipts and expenditures of the company are being made only in accordance with authorizations  of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely  detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the  financial statements.  Because of the inherent limitations of internal control over financial reporting, including the possibility of  collusion or improper management override of controls, material misstatements due to error or fraud may not be  prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control  over financial reporting to future periods are subject to the risk that the controls may become inadequate because of  changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.  In our opinion, the Company maintained, in all material respects, effective internal control over financial  reporting as of December 31, 2011, based on the criteria established in Internal Control—Integrated Framework issued  by the Committee of Sponsoring Organizations of the Treadway Commission.  We have also audited, in accordance with auditing standards generally accepted in the Republic of China and the  standards of the Public Company Accounting Oversight Board (United States), the consolidated financial statements  as of and for the year ended December 31, 2011 of the Company and our report dated April 16 , 2012 expressed an  unqualified opinion on those financial statements and included explanatory paragraphs regarding i) the reconciliation  to accounting principles generally accepted in the United States of America (“US GAAP”) and ii) the convenience  translation of New Taiwan dollar amounts into U.S. dollar amounts.  April 16, 2012 /s/ D ELOITTE  & T OUCHE Deloitte & Touche Taipei, Taiwan The Republic of China 130 PART II