November 13, 2020 Subject: The Management Discussion and Analysis for the third quarter ended September 30, 2020 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited

prohibited from trading securities on the Stock Exchange or over-the-counter trading centers or entering into derivatives contracts on the Derivatives Exchange for one year and six months, and banned from

Group 5/ 44 36 (81) -284% -321% 270 24 -91% Others 6/ (76) (72) (61) (113) (190) Profit attributable to owners of the Company 1,060 1,007 1,856 75% 84% 4,137 4,009 -3% Basic earnings per share (Baht) 0.77

หน้าที 1 จาก 5 GEL.CS.019/2560 15 August 2017 Subject Explanation and analysis of management for operating results of the Second Quarter Ended June 30, 2017 To Director and Manager The Stock Exchange

หน้าที่ 1 จาก 5 GEL.CS.024/2560 15 November 2017 Subject Explanation and analysis of management for operating results of the Third Quarter Ended September 30, 2017 To Director and Manager The Stock

Microsoft Word - 2019_Q2 Results Notification letter_English _1st Draft_ August 13, 2019 The Director and Manager The Stock Exchange of Thailand Re: Information on Operating Results for the Second

25.50 48.20 51.22 Total liabilities 299.78 4.22 326.85 32.15 344.83 33.99 160.64 170.71 Shareholders’ equity Capital stock Registered capital Issued and Paid-up Share Capital 7,000.00 98.64 850.00 83.62

Date of EGM 1/2020 (Revise) Dear Directors and Managers Stock of Exchange of Thailand Attachment 1. Extraordinary General Meeting of Shareholders No. 1/2020 2. Information Regarding the Asset Acquisition

July 31, 2020 Subject : Notification to dispose of ordinary shares in RPV Energy Company Limited (2 nd Amendment) Attention : The Director and Manager of the Stock Exchange of Thailand Eastern Power

Disposal of Assets Transaction, and Acquisition of Assets Transaction To : Director and Manager The Stock Exchange of Thailand Enclosure Information Memorandum on Acquisition of Assets (Schedule (1)) of