-Translation- No. ECF2 041/2561 12 November 2018 Subject: Management Discussion and Analysis of the 3rd quarter ended September 30, 2018 To President The Stock Exchange of Thailand East Coast

(Translation) UAC.CS/012/2020 May 14, 2020 Subject: Explanation of the operating results for the first quarter period ended March 31, 2020 To: President The Stock Exchange of Thailand Attachment

and grasp opportunities that each goal presents.Srettha Thavisin, Prime Minister and Minister of Finance, attended the event to share his expectations regarding sustainability in Thailand's business

to buy SK1 shares from Suthin and Charuwan, who were his debtors, in order for them to repay him with the money received from the share sale. Case 4: Performing duties dishonestly and seeking

trading LIVE shares and converting share warrants of the persons under (8) and (9).   Case 2: Seeking improper benefits from the rental and buy-back of advertising billboards The persons under (1) - (3

operating results for the 3-month period and 6-month period ending June 30, 2017 To : President The Stock Exchange of Thailand Diamond Building Products Public Company Limited and its Subsidiary (together

Transaction on Acquisition of Assets and Determination of the 2020 Annual General Meeting of Shareholders To: Director and Manager The Stock Exchange of Thailand Enclosure 1. Information Memorandum on the

- ร่าง - 1 Aug 10, 2017 Subject Management Discussion and Analysis for the period of three months ended 30th June 2017 To President of the Stock Exchange of Thailand Secretary of the Office of

1 No. CC20190203ELE February 27, 2019 Subject Report of the Resolutions of Board of Directors’ Meeting No.1/2019 To President The Stock Exchange of Thailand The Board of Directors of Cal-Comp

- ร่าง - 1 May 28, 2019 Subject Management Discussion and Analysis for the year ended 31st March 2019 To President of the Stock Exchange of Thailand Secretary of the Office of Securities and Exchange