notification of the Securities and Exchange Commission and the SET. Please be informed accordingly. Sincerely Yours, Teerawit Charuwat (Mr. Teerawit Charuwat) Director, Chief Executive Officer and Acting Chief

be informed accordingly. Yours faithfully, For and on behalf of Diamond Building Products Public Company Limited (Mr. Asanee Chantong) Chief Executive Officer - 1 - DIAMOND BUILDING PRODUCTS PUBLIC

. Asanee Chantong) Chief Executive Officer - 1 - DIAMOND BUILDING PRODUCTS PUBLIC COMPANY LIMITED AND ITS SUBSIDIARY MANAGEMENT DISCUSSION AND ANALYSIS (For the Consolidated Financial Statements of the 3rd

Acquisition or Disposal. Please be informed accordingly, Sincerely yours, -Weera Louwitawas- (Mr. Weera Louwitawas) Chief Executive Officer Enclosure 1 1 Information Memorandum in relation to the Transaction of

Co.,Ltd. Within May 31, 2018. 2) Relevant parties Purchaser : NEP Realty and Industry Public Company Limited (“Company”) Seller : PAE PACK Co.,Ltd. (“PAE PACK”) 3) Relationship The director and

their Relationship with the Company Purchaser: T.K.S. Technologies Public Company Limited Seller: Miss Sutida Mongkolsuthree Relationship with the Company: The Seller is a shareholder holding 4.46 percent

and their Relationship with the Company Purchaser: T.K.S. Technologies Public Company Limited Seller: Miss Sutida Mongkolsuthree Relationship with the Company: The Seller as is a person under Section

ประสงค์จะชำระราคาในเวลาเดียวกับที่ได้รับมอบหลักทรัพย์ (Delivery Versus Payment: “DVP”) นั้น มักจะมีบริษัทหลักทรัพย์ต่างประเทศ เป็นผู้ซื้อหุ้นเบื้องต้น (Initial Purchaser: “IP”) ทำ

/ Chief Executive Office 5. Mr.Apivut Thongkam Independent Director and Chairman of the Audit Committee 6. Mr.Chaiyasit Puvapiromquan Independent Director and Member of the Audit Committee 7. Mr. Thanachai

Extraordinary General Meeting (Shareholders’ Meeting) in November 2017 to approve such transaction. 2. Involved Parties Seller : Ladprao General Public Company Limited (“LPH”), the land owner. Purchaser : Ladprao