: * Calculated based on the number of issued and paid-up ordinary shares deducted by the number of treasury stock The Corporate Group’s total assets as at December 31, 2019 increased from the end of year 2018 by

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

Shares)* 947.96 947.96 - - Book Value (Baht per Share)* 2.56 2.38 0.18 7.56 Remark: * Calculated based on the number of issued and paid-up ordinary shares deducted by the number of treasury stock The

assets; total liabilities; net assets or liabilities; capital stock (excluding long term debt and redeemable preferred stock); number of shares as adjusted to reflect changes in capital; dividends declared

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

)* 2.02 1.90 0.12 6.32 Remark: * Calculated based on the number of issued and paid-up ordinary shares deducted by the number of treasury stock The Corporate Group’s total assets as at September 30, 2017

)* 2.38 2.19 0.19 8.68 Remark: * Calculated based on the number of issued and paid-up ordinary shares deducted by the number of treasury stock The Corporate Group’s total assets as at June 30, 2019

- - Book Value (Baht per Share)* 2.32 2.19 0.13 5.94 Remark: * Calculated based on the number of issued and paid-up ordinary shares deducted by the number of treasury stock The Corporate Group’s total assets

)* 929.58 947.96 (18.38) (1.94) Book Value (Baht per Share)* 2.05 2.38 (0.33) (13.87) Remark: * Calculated based on the number of issued and paid-up ordinary shares deducted by the number of treasury stock

stock program, the number of stocks repurchased between the 6th December 2019 and the 5th June 2020 amounts to 19.238 million shares, for a value of THB 505 million, which equals to 1.40% of paid-up