November 13, 2017 The President & Director, The Stock Exchange of Thailand (SET) LETTER OF CLARIFICTION: CENTEL’s Q3/2017 & YTD 9 MONTHS /2017 OPERATING PERFORMANCE RESULTS This is to inform the SET

________________________________________________________________________ 5. ผูท่ี้ท ำหนำ้ท่ีอนุมติั information security policy and procedure  คณะกรรมกำรบริษทั (board of director : BoD)  คณะกรรมกำรบริหำร (management or executive committee)  คณะอนุกรรมกำรอ่ืนท่ีไดรั้บ

take control over appointment or removal from office of a director of such company; (c) a person who by behavior can take control over a person responsible for policy making, management or operation of

for other companies. 3. Identify material background information (certain specified matters relating to conduct under the law) on director, senior management or controlling shareholder2 or controlling

เป็นที่ปรึกษาบริษัทหรือได้รับมอบอำนาจช่วงให้ลงนามแทนคณะกรรมการบริษัทได้ (เป็น shadow director) 2. หากบริษัทมีการทำรายการระหว่างกันกับบุคคลที่อาจมีความขัดแย้ง ต้องไม่เป็นช่องทางที่ก่อให้เกิด การถ่ายเทผล

informed accordingly. Sincerely Yours, Prachuab Ujjin ( Mr. Prachuab Ujjin ) Director and Chief Executive Officer

of additional initiatives in the Company’s recycling strategies and offerings. The Board has recently nominated an Executive Director with the specific remit of addressing the global recycling

being addressed through a series of additional initiatives in the Company’s recycling strategies and offerings. The Board has recently nominated an Executive Director with the specific remit of addressing

- Prachuab Ujjin - (Mr. Prachuab Ujjin) Director and Chief Executive Officer

names of recorded shareholders are entitled to the right to attend the Extraordinary General Meeting of Shareholders No. 1/2019 (Record Date) To: Director and Manager The Stock Exchange of Thailand