1,403.07 13% Cost of hospital operations 276.11 258.34 7% 1,101.98 985.67 12% Gross margin 117.88 108.76 8% 485.45 417.39 16% % Gross margin 30% 30% 0% 31% 30% 1% Administrative expenses 41.54 40.51 3

50.28 25.89% Gross profit margin 15.47% 13.76% Other income 5.33 4.73 Selling expenses 3.36 9.99 (6.63) -66.39% Administrative expenses 111.43 108.51 2.92 2.69% Earnings before interest and tax 135.08

Development Plc. would like to inform the financial results for the first quarter of 2018. The Company and its subsidiary reported a net profit of THB 44.48 million or earnings per share of THB 0. 04, comparing

1,101.98 9% Adj. staff benefit - - 8.15 - Gross margin 130.94 117.88 11% 557.38 485.45 15% % Gross margin 30% 30% 0% 31% 31% 1% % Gross margin (exclude non-recurring cost) 30% 30% 0% 32% 31% 1

of hospital operations 257.36 226.88 13% Gross margin 125.57 86.97 44% % Gross margin 33% 28% 5% Administrative expenses 47.84 35.48 35% Earnings before interest, taxes and depreciation 105.66 75.92 39

% 1,329.15 1,193.44 11% Cost of hospital operations before adj. 314.81 293.81 7% 894.56 825.87 8% Adj. staff benefit - - 8.15 - Gross margin 145.70 133.24 9% 426.44 367.57 16% % Gross margin 32% 31% 0% 32% 31

-100% Gross Margin 116.33 120.29 -3% % Gross Margin 29.6% 28.5% 1% % Gross Margin (exclude non-recurring cost) 29.6% 30.4% -1% Administrative Expenses before Adj. 39.49 41.45 -5% Adj. staff benefit

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

Initial and Maintenance Margin Requirements for Derivatives Trading in Derivatives Exchange

Plc. would like to inform the financial performance for the third quarter ended 30 September 2017. The Company and its subsidiaries reported a net profit of THB 34.81 million or earnings per share of