Kotchanipha Phaethayanan 18,000,000 1.75 Management Position 1. Mr. SANTI KIRANAND CHAIRMAN OF THE BOARD OF DIRECTORS / INDEPENDENT DIRECTOR 2. Mr. WICHIAN PADHAYANUN CHIEF EXECUTIVE OFFICER / DIRECTOR 3. Miss

/ INDEPENDENT DIRECTOR 2. Mr. TRINNAWAT THANITNITHIPHAN CHIEF EXECUTIVE OFFICER / DIRECTOR 3. Miss SUPAPORN RERKPITAKPANICH DIRECTOR 4. Miss NAPAPORN DECHAKARAT DIRECTOR 5. Mr. KAMTORN SILA-ON INDEPENDENT

. YUTH VORACHATTARN CHAIRMAN OF THE BOARD OF DIRECTORS / INDEPENDENT DIRECTOR / AUDIT COMMITTEE 2. Mr. ITTHIPAT PEERADECHAPAN CHIEF EXECUTIVE OFFICER / DIRECTOR 3. Mr. SOMBOON PRASITJUTRAKUL DIRECTOR 4

informed accordingly, Respectfully yours, -Weera Louwitawas- (Mr. Weera Louwitawas) Chief Executive Officer 75% Higashi Nihon Mega Solar 3 (GK) Kurihara (GK) AE Power (GK) 99.99% 99.99% 99.99% 99.99% 99.99

December 31, 2019 and September 30, 2020, the shareholders’ equity was valued at Baht 1,317.48 million and Baht 1,316.83 million, respectively. Yours sincerely (Mr. Teerawat Srinakarin) Chief Executive

accordingly. Yours truly, -Mr. Wichien Paetthayanan- Mr. Wichien Paetthayanan Chief Executive Officer

. The increase in shareholders’ equity was thanks to the booking of operating profit. Yours sincerely (Mr. Teerawat Srinakarin) Chief Executive Officer

also proactively cooperated with all related agencies so as to prevent future occurrences of this kind.”Mr. Kulvech Janvatanavit, Chief Executive Officer (CEO) of the Thai Institute of Directors

accordingly. Yours faithfully, For and on behalf of Diamond Building Products Public Company Limited (Mr. Satid Sudbuntad) Chief Executive Officer - 1 - DIAMOND BUILDING PRODUCTS PUBLIC COMPANY LIMITED AND ITS

Sudbuntad) Chief Executive Officer Company Secretary Office Tel. +66 3622 4171-8 Ext. 314 Fax. +66 3622 4187 - 1 - DIAMOND BUILDING PRODUCTS PUBLIC COMPANY LIMITED AND ITS SUBSIDIARY MANAGEMENT DISCUSSION AND