agreements of Riau Combined-Cycle Power Plant Project in the Republic of Indonesia On March 20, 2019, PT Medco Ratch Power Riau, an indirect joint venture that the Company held a 49 percent stake through RH

(Translation) February 27, 2019 Ref: SET-2019-003 Re: Management's Discussion and Analysis and operating results for the Year 2018 Attn. to: President The Stock Exchange of Thailand Filter Vision

Stock Exchange of Thailand Filter Vision Public Company Limited and its subsidiaries (Hereinafter called “The Group”) would like to submit Management’s discussion and analysis for the Year 2017 with the

Eng_MD&A Q2'18 (Translation) August 14, 2018 Ref: SET-2018-016 Re: Management Discussion and Analysis for Quarter 2’ 2018 Attn. to: President The Stock Exchange of Thailand Filter Vision Public

(Translation) 14th November, 2017 Ref: SET-2017-020 Re: Management's Discussion and Analysis and operating results for the 3rd Quarter 2017 Dear: The President The Stock Exchange of Thailand Filter

SAAM Energy Development Public Company Limited - 1 - 12 May 2020 Subject: Management Discussion and Analysis for the period ended 31 March 2020 To: The President The Stock Exchange of Thailand SAAM

SAAM Energy Development Public Company Limited - 1 - 7 August 2020 Subject: Management Discussion and Analysis for the period ended 30 June 2020 To: The President The Stock Exchange of Thailand SAAM

February 26, 2018 To: The President The Stock Exchange of Thailand Re: 2017 operating results We, Delta Electronics (Thailand) Public Company Ltd, would like to notify the Company’s 2017 operating

-1- AIT (VP-SEC) 016E/2019 May 7, 2019 Subject: Management's Discussion and Analysis of Operating Results for Q1-2019 To: The President of The Stock Exchange of Thailand Summary of Operations Q1

Turn-key for Engineering, Design, Supply, Installation, Supervision, Testing, Commissioning, etc.  Valve, Fire Hose, Fire Extinguisher Equipment, Automatic Sprinkler Equipment  Water Base System