. Attention: President Stock Exchange of Thailand Enclosures: 1. Summary of Adjustment of the Exercise Ratio by adjusting Number of ORI- W1 2. Information Memorandum on Asset Acquisition Transaction of Origin

:- Derivative financial instruments are used to manage exposure to foreign exchange and interest rate risks, which are recognized initially at fair value. Subsequent to initial recognition, they are remeasured at

acquisition transaction of the company and subsidiary. Attention: President Stock Exchange of Thailand Enclosures: 1. Summary of Adjustment of the Exercise Ratio by adjusting Number of ORI- W1 2. Information

the Securities and Exchange Act B.E. 2535 (1992), as amended by the Securities and Exchange Act (No.4) B.E. 2551 (2008), and Section 35 and Section 56 of the Securities and Exchange Act B.E. 2535 (1992

sluggish economy, leading to cancellations of some of our long-term contracts. To address this issue, we have been relentless in identifying new clients to replace those cancelled contracts. FINANCIAL

-Translation- M06/002/18 February 28, 2018 Subject Clarification Y2017 Company Performance To The President of the Stock Exchange of Thailand Reference MDX Public Company Limited and its Subsidiaries

February 28, 2018 Subject: The clarification of the year 2017’s profit changing more than 20% Attention: The President The Stock Exchange of Thailand In 2017, Lalin Property Public Co., Ltd., shows a

No. SN.LK 017/2018 May 11, 2018 Subject Management Discussion and Analysis Quarter 1 Ending 31 Mar 2018 To The President The Stock Exchange of Thailand Indara Insurance Public Company Limited would

M.D. 053/2019 February 13, 2019 Subject : Disclosure of the information connected transactions To : President of the Stock of Exchange of Thailand Kang Yong Electric Public Company Limited hereby

ACC1/19-007 February 18, 2019 Subject: Management Discussion and Analysis for the year ended December 31, 2018 To: Director and Managing Director The Stock Exchange of Thailand Qualitech Public