Ref. No. IVL 004/02/2020 26 February 2020 The President The Stock Exchange of Thailand Subject: Submission of Annual Audited Financial Statements and the Management Discussion and Analysis of

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

securities business in the category of mutual fund management; (15) “Stock Exchange” means the Stock Exchange of Thailand. Clause 2. This Notification shall apply to securities underwriting made for a

category of mutual fund management; (15) “Stock Exchange” means the Stock Exchange of Thailand. Clause 2. This Notification shall apply to securities underwriting made for a securities offeror who is obliged

management company” means a securities company licensed to undertake securities business in the category of mutual fund management; (15) “Stock Exchange” means the Stock Exchange of Thailand. Clause 2. This

Stock Exchange of Thailand; “Authorized person in private fund management” means the following persons: (1) Any person, who take responsibility in private fund management, from the position of private

; “Securities exchange” means The Stock Exchange of Thailand; “Authorized person in private fund management” means the following persons: (1) Any person, who take responsibility in private fund management, from

securities business in the category of mutual fund management; (15) “Stock Exchange” means the Stock Exchange of Thailand. Clause 2 This Notification shall apply to securities underwriting made for a

category of mutual fund management; (15) “Stock Exchange” means the Stock Exchange of Thailand. Clause 2 This Notification shall apply to securities underwriting made for a securities offeror who is obliged