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

quarter 2017 could not contribute revenue to cover expenses. Some reason is from depreciation of improved building and design that such depreciation must be recognized in line with contract period as well

long term, such as damage on building or place of business or branches, a failure of information technology system, inaccessibility or unusability of building or personnel unable to come for work in both

disruptions by assessing on an emergency incident, which causes a disruption and business impacts in either short, medium or long term, such as damage on building or place of business or branches, a failure of

city. o Central Park Offices The 43-storey building, covering 90,000 sq. m., will provide the ultimate in connectivity for start-ups to large companies alike. Designed to Dusit Thani PLC Management

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

) 41.23 243.83 (202.60) (83.09) - งานให้บริการรับเหมากอ่สร้างตดิตัง้โครงสร้างและระบบ (SMP E&I Service) 152.55 53.34 99.21 185.94 - งานให้บริการด้านวศิวกรรมโยธา (Civil & Building Service) 100.78 74.84 25.94

is the Company’s connected party, to own and have the absolute controlling power in the project SHAA Asoke; 2) investment in ONE CITY CENTRE (“OCC”) – grade A office building development project for a

Ref. DBP. 068 / 2018 May 14, 2018 Subject : Clarification on operating results for the 1st Quarter ending March 31, 2018 To : President The Stock Exchange of Thailand Diamond Building Products Public

Diamond Building Products Public Company Limited and its Subsidiary (together referred to as “Corporate Group”) would like to clarify on the operating results according to the consolidated financial