percentage of acquisition/disposition, the group percentage after theacquisition/disposition and the person(s) under Section 258 of the Securities and Exchange Act B.E.2535 . Preliminary version: incomplete

individuals, thegroup percentage of acquisition/disposition, the group percentage after theacquisition/disposition and the person(s) under Section 258 of the Securities and Exchange Act B.E.2535 . Preliminary

Attention: President The Stock Exchange of Thailand CH. Karnchang Public Company Limited (“the Company”) and its subsidiaries would like to clarify the consolidated operating result and financial position for

the shareholding in subsidiary companies To: President The Stock Exchange of Thailand Attachment: 1. Structure of the shareholding in subsidiary companies 2. Information on the Connected Transaction of

27 April 2020 To: The President The Stock Exchange of Thailand Re: Q1-2020 Operating Results We, Delta Electronics (Thailand) Public Company Limited (the “Company”) would like to notify the Company’s

Analysis Quarterly Ending March 31, 2020 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 3/2020 dated May 9

No. Lor Gor. 004/2020 May 11, 2020 President The Stock Exchange of Thailand Re : Credit guarantee to A Tech Textile Co., Ltd. on shareholding proportion Ref : Document no. Kor Bor Ror. 008/2018 dated

-9320 1 Ref: PCL 2020/011 May 11, 2020 Subject: Management Discussion and Analysis for the 3-month period ended 31 March 2020 To: The President of the Stock Exchange of Thailand Panjawattana Plastic

- Translation - Ref. AECS 070/2020 May 14, 2020 Subject: Clarification of Financial Statement Quarter 1/2020 Ended on 31 March 2020 (Reviewed) To: The President The Stock Exchange of Thailand The

-TRANSLATION- 15 May 2020 Subject : Management Discussion and Analysis for Q1/2020 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance in