26 February 2019 Subject: Management Discussion and Analysis for the Year Ended December 31, 2018 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company Limited

19 September 2005 - Translate – Ref. HF 0109/2018 August 6th, 2018. Subject : Disclosure of Connected Transaction. Attn : Managing Director of the Stock Exchange of Thailand. According to the

August 28, 2019 Re: Clarification of the operating results of company and its subsidiaries for the year ended December 31, 2017 To: Boards and Managements The Stock Exchange of Thailand K.C. Property

1/4 August 28, 2019 Re: Clarification of the operating results of company and its subsidiaries for the year ended December 31, 2017 To: Boards and Managements The Stock Exchange of Thailand K.C

Assets N Hospital Company Limited with additional 16.67 percent To : The President The Stock Exchange of Thailand The Board of Directors’ Meeting of World Corporation Public Company Limited (“the Company

Exchange of Thailand According to Advance Connection Corporation Public Company Limited, the “Company” has submitted the financial statements of the Company and its subsidiaries for the 12 months period of

Deemed as Acquisition or Disposal of Assets, and the Notification of the Board of Governors of the Stock Exchange of Thailand Re: Disclosure of Information and Other Acts of Listed Companies Concerning the

assets and convening the Extraordinary General Meeting of the Shareholders No. 1/2018 (Revise 3) To : President, The Stock Exchange of Thailand Attachment : 1. Capital Increase Report Form (F 53-4) 2

The Stock Exchange of Thailand According to TS Flour Mill Public Company Limited ("The Company") has submitted the financial statements for the third quarter of 2017 ending September 30, 2017. The

claimant; “SET” means the Stock Exchange of Thailand; “Office” means the Office of the Securities and Exchange Commission. Chapter I General Provision ________________________ Clause 4. The arbitral