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

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

Retained Earnings (Deficit) 138.04 114.70 164.47 50.97 125.09 Treasury Stock - - - - - Shares Of The Company Held By Subsidiaries - - - - - Other Components Of Equity - - - - -68.82  - Surplus (Deficits

585.00 Retained Earnings (Deficit) 739.91 728.38 778.15 595.68 587.78 Treasury Stock - - - - - Shares Of The Company Held By Subsidiaries - - - - - Other Components Of Equity -5.69 -5.93 -0.14 -5.96

Premium (Discount) on Share Capital 547.61 547.61 547.61 547.61 824.43 Retained Earnings (Deficit) -1,001.70 -967.94 -985.37 -881.59 -927.98 Treasury Stock - - - - - Shares Of The Company Held By

Capital 660.00 550.00 550.00 550.00 400.00 Paid-Up Capital 550.00 550.00 550.00 550.00 400.00 Premium (Discount) on Share Capital 417.22 417.22 417.22 417.22 6.00 Retained Earnings (Deficit) 324.69 368.05