June 2020 To : The President The Stock Exchange of Thailand Bangkok Chain Hospital Public Company Limited (the “Company”) would like to report the operating results for the second quarter ended 30 June

financial statements for the year ended December 31, 2019 as follows: Overview of Operating Performance Company and its subsidiaries had revenue classified by product category consist revenue from the

of Thailand 1. Analysis of Operating Results and Financial Position for the Company and its subsidiary 1.1 Analysis of Operating Results for the Company and its subsidiary for the 3-month period ended

the 3rd quarter financial statements as of November 30, 2020 which were reviewed by Deloitte Touche Tohmatsu Jaiyos Audit Company Limited. The operating performance is summarized are as follows

Discussion & Analysis Q1/2022 Operating Highlights in Q1/2022 Q1/21 Q1/22 Change +/(-) (THB million) %YoY Operating Revenue 179 198 11% Gross Profit 105 120 14% EBITDA 57 58 2% Net Profit (Loss) for the

14 ATR 72-500 5 6 ATR 72-600 11 9 Total 40 38 5 ASIA’S BOUTIQUE AIRLINE One additional Airbus A319 under operating lease agreement was delivered in July 2018 and two additional ATR72-600 were delivered

up 56%  Driven by positive internal and external outcomes  LTM 2Q18 Core EPS THB 3.86 – up 61% YoY post 9.8% dilution from warrants exercise  Net Operating D/E 0.45x, Core ROCE 15.8% on LTM 2Q18

% Net interest margin 2.33% 2.34% 2.31% (0.01)% 0.02% 2.34% 2.33% 0.01% Net fees and service income to operating income ratio 21.3% 24.1% 22.7% (2.8)% (1.4)% 22.7% 23.7% (1.0)% Expense to operating income

due to COD of both phases of IRPC-CP and the better performance of Rayong Central Utility Plants as the industrial users are operating normally compared to the maintenance shutdown in Q1/2017. In

-Translation- No. ECF2 044/2561 3 December 2018 Subject: Notification of the resolutions of the Board of Directors’ Meeting approving the investment in purchasing the ordinary shares of S-TREK (Thailand) Co., Ltd., capital increase, and the issuance and allocation of the newly issued ordinary shares to the specific person under the private placement basis, and the schedule for Extraordinary General Meeting No. 1/2019 To President The Stock Exchange of Thailand Enclosure 1. Information Memorandum...