derivatives such as forward contract to hedge against the exchange rate risk associated with the import of machinery for power plant projects under construction. B.GRIMM POWER PUBLIC COMPANY LIMITED

for Year 2017 Ending 31 December 2017 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 1/2018 dated 24

Exchange of Thailand Enclosure Capital Increase Form (F 53-4) (amended) Following Hydrotek Public Company Limited (the “Company”)’s Board of Directors’ Meeting No. 10/2017 held on October 19, 2017 at 5.00 pm

No. CAZ 015-2019 13 August 2019 Subject: Management Discussion and Analysis 2nd Quarter ended 30 June 2019 Attention: The President The Stock Exchange of Thailand CAZ (Thailand) Public Company

because of the following; - Decreased in gain on foreign exchange rate from Q1’19 amounting of 1.53 Million Baht and gain on selling of scrap and unused construction machine equipment and consumable

and Construction EVN Electricity of Vietnam Ft Fuel adjustment FX Foreign exchange IPO Initial public offering IU Industrial user JV Joint venture KWh / GWh Kilo / Gigawatt-hour MEA Metropolitan

1 May 15, 2019 Subjects : Clarification of operating results for the Q1/2019 Attention : The Director and Manager of the Stock Exchange of Thailand The Consolidated net profit of Eastern Printing

Limited (“SUTG”), in equivalent to 66 percent of SUTG’s issued and paid-up shares. SUTG is engaging in the business of a construction contractor, provision of service regarding the operation and maintenance

Governance Project" of the Securities and Exchange Commission (SEC). An English version of the MD&A has been prepared from the Thai version. In the event of a conflict or a difference in interpretation between

as following saction: 20 pporter, Co Company ceiver: ic Company cription of t will receiv rector Reso r Exchange of f Directors’ d on 25 Feb nce from undred Millio ajor shareho on of the C nected Tran