-9320 1 Ref: PLC 2019/011 November 13, 2019 Subject: Management Discussion and Analysis Quarter 3 Ended 30 September 2019 To: The President of the Stock Exchange of Thailand Panjawattana Plastic Public

Thailand. Demco Public Company Limited would like to inform you herewith the company result for the year 2019 according to the company’s consolidated financial statements for the year ended December 31, 2019

Page 1 Date 13 May 2020 Re: Management Discussion & Analysis for the 3-months period Ended 31 March 2020 To The President of the Stock Exchange of Thailand (SET) CHAOPRAYAMAHANAKORN PUBLIC COMPANY

Exchange of Thailand. Demco Public Company Limited would like to inform you herewith the company result for the quarter 1/2020 according to the company’s consolidated financial statements for the year ended

Acc. 005/2020 August 10, 2020 To: The President The Stock Exchange of Thailand Subject: Management discussion and analysis (MD&A) for Quarter 2/2020 Dear Sir, S. Khonkaen Foods Public Company Limited

eased phase by phase thanks to significant improvement in controlling the spread of COVID-19 in Thailand. A number of recovery plans were introduced to the market by Thai government; however, Thai economy

1 Translation CEN 012-2020 May 15, 2020 Subject : Management discussion and analysis for business operation Quarter 1-2020 To : The Manager and President The Stock Exchange of Thailand Summarization

October 30, 2020 Subject: The Management Discussion and Analysis for the second quarter ended June 30, 2020 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited (“the

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

October 3, 2019 Re: Clarification of the operating results of company and its subsidiaries for the 1 st quarter of year 2018 To: President The Stock Exchange of Thailand K.C. Property Public Company