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

บทรายงานและการวิเคราะห์ของฝ่ายบริหาร Management Discussion and Analysis For the Financial Result of Quarter 2 Year 2020 Ended June 30, 2020 Note: This Management Discussion and Analysis (MD&A) was

resolution to certify the financial statements and performance of the Company and the Company’s for the first quarter ending 31 March 2020, which has already been examined by the Company’s auditor, the results

reviewed consolidated financial statements for the 9-month period as of 30 September 2018. The transaction value is also calculated from the transactions of disposal of asset during the period of six months

Telecommunications Commission (“NBTC”) to request for the License return on 10 May 2019 (“Transaction of Returning Spring26’s License”). Besides, NBTC delivered the notification letter, dated 27 June 2019, regarding

Management Discussion and Analysis For the Annual Operating Results 2018 Ended December 31, 2018 Note: This Management Discussion and Analysis (MD&A) was made to disclose information and the vision

บทรายงานและการวิเคราะห์ของฝ่ายบริหาร Management Discussion and Analysis For the Financial Result of Year 2019 Ended December 31, 2019 Note: This Management Discussion and Analysis (MD&A) was made to

the private placement basis, and the schedule for 2019 Annual General Meeting of Shareholders To: President The Stock Exchange of Thailand Reference: Notification of East Coast Furnitech Public Company

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

Company Limited 140/1 KHANJANAPISEK RD., BANGKAE, BANGKAE, BANGKOK, THAILAND. 10160 Tel: 02-455-2888 Fax: 02-455-2763 ( “TRANSLATION” ) No. TG 024 / 2561 6 February 2018 Subject Schedule for the