1 12 February 2018 Subject: Explanation of operating result in the financial statement ended 31 December 2017 To: Directors and Managers of the Stock Exchange of Thailand With reference to the

: President The Stock Exchange of Thailand Ratchthani Leasing Public Company Limited would like to clarify the management discussion and analysis for the year ended 31 December 2017 (Audited) as follows

: Director and General Manager The Stock Exchange of Thailand Eureka Design Public Company Limited and its subsidiaries (“the Group”) would like to clarify the changes in excess of 20% in the Group’s operating

Our Ref: APURE 017/2019 8 November 2019 Subject : Clarification on Third Quarter’s Operating Performance (3/2019) Attention : President The Stock Exchange of Thailand The company clarifies causes and

) To : President The Stock Exchange of Thailand Ratchthani Leasing Public Company Limited would like to clarify the management discussion and analysis for the year ended 31 December 2018 (Unaudited) as

1 - TRANSLATION - KT/PB (Q-Con) 004/2019 February 4,2019. Attention Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis for year 2018 Quality Construction

ที่ ITV / 2545 - Translation - AIS-CP 015/2020 18 June 2020 Subject: Establishment of new joint venture and subsidiary company To: President The Stock Exchange of Thailand Advanced Info Service Plc

ที่ กบร No. Lor Gor. 023/2020 November 16, 2020 President The Stock Exchange of Thailand Re : Clarification on the company’s over 20% change in its operating results for 3rd quarter, 2020 Dear Sir

Our Ref: APURE 014/2020 14 May 2020 Subject Clarification on First Quarter’s Operating Performance (1/2020) Attn. To The Director and President of the Stock Exchange of Thailand The company clarifies

(SEA).  The SEC will later work on details of regulations.2. LBDU licensees that submit orders for investment unit trading through members of the Stock Exchange of Thailand (SET) must comply with net