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

Ref. DBP. 141 / 2017 November 13, 2017 Subject : Clarification on Operating Results for the 3-Month Period and 9-Month Period ending September 30, 2017 To : President The Stock Exchange of Thailand

ที่ กตพ Ref. DBP. 108 / 2019 August 13, 2019 Subject : Clarification on Operating Results for the 2nd quarter and 6-month Period ending June 30, 2019 To : President The Stock Exchange of Thailand

Ref. DBP. 153 / 2019 November 11, 2019 Subject : Clarification on Operating Results for the 3rd quarter and 9-month Period ending September 30, 2019 To : President The Stock Exchange of Thailand

Ref. DBP. 111 / 2020 August 10, 2020 Subject : Clarification on Operating Results for the 2nd quarter and 6-month period ending June 30, 2020 To : President The Stock Exchange of Thailand Diamond

the shareholding in subsidiary companies To: President The Stock Exchange of Thailand Attachment: 1. Structure of the shareholding in subsidiary companies 2. Information on the Connected Transaction of

60.96 million whereas the Company paid dividend by Baht 60 million in May 2017. Cash Flow Statement Analysis Unit : MB For the period ended 30 September 2017 For the period ended 30 September 2016 Change

16.72 million or 1.1% from end of 2017, mainly due to the dividend payment to shareholders. Cash Flow Statement Analysis หน่วย: ลา้นบาท For the period ended Change 30 June 2018 30 June 2017 MB % Cash flow

shareholders’ equity was Baht 1,476.16 million, decreasing by Baht 15.10 million or 1.0% from end of 2017, mainly due to the dividend payment to shareholders. Cash Flow Statement Analysis หน่วย: ลา้นบาท For the

Limited. The Company has already registered the changes to the Department of Business Development, Ministry of Commerce on April 17, 2019. In this regard, the Company still uses the same stock symbol “RATCH