M.D. 042/2020 February 12, 2020 Subject : Disclosure of the information connected transactions (Revised) To : President of the Stock of Exchange of Thailand Kang Yong Electric Public Company Limited

Ref. MD 115/2017 August 25, 2017 Re: Clarification on the Financial Performance of the Company and its subsidiaries as of Year 2015 Attn: President The Stock Exchange of Thailand We, K. C. Property

(Translation) No. MD119/2560 August 29, 2017 Re: Clarification on the Financial Performance of the Company and its subsidiaries as of Year 2015 Attn: President The Stock Exchange of Thailand We, K. C

ที่ - Translation - PorBor.076 / 2017 November 14, 2017 Subject: Clarification of operating results change from the same period last year by more than 20% To: President The Stock Exchange of Thailand

Translation CEN 034-2018 November 13, 2018 Subject : Management Discussion and Analysis for quarter 3-2018 To : The Manager and President The Stock Exchange of Thailand Business operation for 3

impact of Stock Gain/(Loss) and NRV Management’s Discussion and Analysis Global Green Chemicals Public Company Limited | 3 sales volume was increased. However, sales revenue of Fatty alcohol business

Ref: FASET 01/2562 February 26, 2019 Subject: Report the operating result for the year ended December 31, 2018 To: President of the Stock Exchange of Thailand Seamico Securities Public Company

President The Stock Exchange of Thailand Dear Sir, With reference to the Minutes 8/2017 of the Company Directors’ meeting dated August 22, 2017, the Board resolved to approve the audited financial statements

AC 52/07-003 ACC1/19-056 11 November 2019 Subject : The Purchase of the Ordinary Shares of Duwell Intertrade Co., Ltd. To: Director and Managing Director The Stock Exchange of Thailand Qualitech

undertaking as well as to protect investors? best interest.?The four key areas are:?1. Provisions on Stock Exchange: The proposed revisions include (1) granting the power to approve the rules on securities