-9320 1 Ref: PLC.2020/005 March 9, 2020 Subject : Dividend payment and the connected transaction and schedule of the 2020 Annual General Meeting of Shareholders (Amendment) To : President, The Stock

May 12, 2020 has resolved to approve the Company’s subsidiary, Cal- Comp Precision Holding Co., Ltd.’s (“CCPT-KY”) initial public offering plan (the “IPO Plan”) to be listed in the Taiwan Stock Exchange

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

regulations regarding possession of prohibited characteristics in Group 3 under Chapter 7. Clause 25 In case personnel in the capital market business are persons registered with the Stock Exchange or the

(Translation) No. IR/2561/047 1 October 2018 Subject: Resolutions of the Board of Directors' Meeting regarding entering into transaction with connected person To: President The Stock Exchange of

net loss of THB 92 million in 2Q17. For core business, excluding the gain from the sale of investments, the Company reported EBITDA of THB 107 million and net loss of THB 29 million, representing yoy

104,000 -7.3% 9.5% FBB ARPU (Baht/user/month) 489 462 458 -6.4% -0.9% 3 2Q21 MD&A Advanced Info Service Plc. 1H21 Snapshot For 1H21, Core service revenue was 64,778m, decreasing -0.9%YoY, and reflected

9M21, AIS’ performance was in-line with the guidance, delivering a flat core service revenue due to on-going impact of the pandemic while reported slightly increase in EBITDA (+2% YoY). FY21 guidance is

core principles take into account environmental, social and governance (ESG) factors in the business practices of investee companies, offering institutional investors a balanced focus apart from seeking

Deemed as Acquisition or Disposal of Assets dated August 31, 2008 and the Notification of the Board of Governors of the Stock Exchange of Thailand Re: Disclosure of Information and Other Acts of Listed