Rules for Operation of Derivatives Exchange

* (%) 75.8% 62.9% Debt to equity (times) 1.0 0.8 Assets turnover* (times) 0.5 0.4 Remark: financial ratios were calculated based on The Stock Exchange of Thailand’s formula. *The Company didn’t restate the

renovation of three hotels under Dusit Thani brand, and caused by a temporarily weaker demand from catering and convention during the mourning period and the royal funeral of King Bhumibol Adulyadej. Earnings

Call for and Deposit of Margins for Derivatives Trading in Derivatives Exchange (No. 2)

Re: Initial and Maintenance Margin Requirements for Derivatives Trading in Derivatives Exchange

Initial and Maintenance Margin Requirements for Derivatives Trading in Derivatives Exchange

ONE ASSET MANAGEMENT LIMITED|Exchange Traded Fund : ETF | Offering Date : 01/08/2011 - 08/08/2011

ONE ASSET MANAGEMENT LIMITED|Exchange Traded Fund : ETF | Offering Date : 31/01/2013 - 12/02/2013

ONE ASSET MANAGEMENT LIMITED|Exchange Traded Fund : ETF | Offering Date : 20/07/2009 - 28/07/2009

management for the year 2017 To: President Stock Exchange of Thailand The Company would like to clarify the following reasons for changes to profit (loss) in the consolidated financial statements for the year