1,336 HRC Average Selling Price (Bht./Ton) 18,529 16,348 HRC Cash Margin (Bht./Ton) 1,848 2,427 Unit: million Baht 2017 2016 Gr ou p Total Assets 32,172 32,615 Total Liabilities 19,781 21,747 Total Equity

Ref. DBP. 066 / 2020 May 11, 2020 Subject : Clarification on Operating Results for the 1st Quarter ending March 31, 2020 To : President The Stock Exchange of Thailand Diamond Building Products Public

-Translation- Ref. WINNER 028/2020 November 12, 2020 Subject: Management Discussion and Analysis for the 3-month period and 9-month period ended 30 September 2020 To: The President The Stock Exchange

- 1 - AIT (VP-SEC) 004E/2020 February 11, 2021 Subject: Management's Discussion and Analysis of Operating Results for the year 2020 and Q4-2020 To: The President of the Stock Exchange of Thailand

Assets (as amended) and the Notification of the Board of Governors of the Stock Exchange of Thailand Re: Disclosure of Information and Other Acts of Listed Companies Concerning the Acquisition and

-1- AIT (VP-SEC) 030E/2019 November 7, 2019 Subject: Management's Discussion and Analysis of Operating Results for Q3-2019 To: The President of The Stock Exchange of Thailand Summary of Operations Q3

1 Translation UWC 006/2019 February 26, 2019 Subject : Management Discussion and Analysis for year 2018 To : President of the Stock Exchange of Thailand Ua Withya Public Company Limited ("Company

Stock Exchange of Thailand PACE Development Corporation Public Company Limited (“the Company”) would like to report the operating results for the year ended 31 December 2018. The details are as follows

-1- AIT (VP-SEC) 026E/2020 August 10, 2020 Subject: Management's Discussion and Analysis of Operating Results for Q2-2020 To: The President of The Stock Exchange of Thailand Summary of Operations Q2

the number of issued and paid-up ordinary shares deducted by the number of treasury stock The Corporate Group’s total assets as at March 31, 2018 increased from the end of year 2017 by Baht 25.09