herewith. Please be informed accordingly. Yours faithfully, For and on behalf of Diamond Building Products Public Company Limited (Mr. Satid Sudbuntad) Chief Executive Officer - 1 - DIAMOND BUILDING PRODUCTS
29 January 2019 assigned the executive committee or Chief Executive Officer to be authorized to perform any actions related to the disposal of Land and Buildings to Double Tree Holding , including to
attached herewith. Please be informed accordingly. Yours faithfully, For and on behalf of Diamond Building Products Public Company Limited (Mr. Satid Sudbuntad) Chief Executive Officer Company Secretary
informed accordingly. Yours faithfully, For and on behalf of Diamond Building Products Public Company Limited (Mr. Satid Sudbuntad) Chief Executive Officer Company Secretary Office Tel. +66 3622 4171-8 Ext
Management Name : Air Chief Marshal SURASAK MEEMANEE | Type of securities : Common share | Methods of Acquisition / Disposition : Sell | Transaction Date : 17/01/2018
Management Name : Air Chief Marshal BUREERAT RATANAVANICH | Type of securities : Common share | Methods of Acquisition / Disposition : Sell | Transaction Date : 06/10/2016
Management Name : Air Chief Marshal BUREERAT RATANAVANICH | Type of securities : Common share | Methods of Acquisition / Disposition : Sell | Transaction Date : 22/05/2018
Management Name : Air Chief Marshal BUREERAT RATANAVANICH | Type of securities : Warrant | Methods of Acquisition / Disposition : Sell | Transaction Date : 18/05/2018