million or 21% from 1H/2018 mainly due to recognition of GLOW’s performance following the acquisition of GLOW. Executive Summary Q2/2019 Operating Highlights On the 14th March 2019, Global Power Synergy

ที่ กตพ Ref. DBP. 030 / 2019 February 20, 2019 Subject : Clarification on Operating Results of Year 2018 To : President The Stock Exchange of Thailand Diamond Building Products Public Company Limited

Ref. DBP. 024 / 2020 February 25, 2020 Subject : Clarification on Operating Results of Year 2019 To : President The Stock Exchange of Thailand Diamond Building Products Public Company Limited and its

Ref. DBP. 025 / 2018 February 21, 2018 Subject : Clarification on operating results of Year 2017 To : President The Stock Exchange of Thailand Diamond Building Products Public Company Limited and its

ที่ กตพ Ref. DBP. 073 / 2019 May 13, 2019 Subject : Clarification on Operating Results for the 1st quarter ending March 31, 2019 To : President The Stock Exchange of Thailand Diamond Building

ที่ กตพ Ref. DBP. 107 / 2018 August 14, 2018 Subject : Clarification on Operating Results for the 3-month Period and 6-month Period ending June 30, 2018 To : President The Stock Exchange of Thailand

Eng_MD&A Q2'18 (Translation) August 14, 2018 Ref: SET-2018-016 Re: Management Discussion and Analysis for Quarter 2’ 2018 Attn. to: President The Stock Exchange of Thailand Filter Vision Public

ที่ กตพ Ref. DBP. 156 / 2018 November 12, 2018 Subject : Clarification on Operating Results for the 3rd quarter and 9-month Period ending September 30, 2018 To : President The Stock Exchange of

(Translation) November 14, 2018 Ref: SET-2018-017 Re: Management Discussion and Analysis for Quarter 3’ 2018 Attn. to: President The Stock Exchange of Thailand Filter Vision Public Company Limited

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