Ltd., KT Medical Services Co., Ltd., Medical Vision Co., Ltd. and Hi Healthcare Center Co., Ltd. (Herein after “The Subsidiaries”). . Revenues from sales and services For the year 2019, Revenue from

: Irving Corporation Ltd., KT Medical Services Co., Ltd., Medical Vision Co., Ltd. and Hi Healthcare Center Co., Ltd. (Herein after “The Subsidiaries”). . Revenues from sales and services In the nd Quarter

hemodialysis center. Medical Vision Co., Ltd. has distributed medical equipment. In the first quarter year 2019, has recognized from installation of Pneumatic Tube Carrier Systems 5 projects. And, Hi Healthcare

Medical Services Co., Ltd., Medical Vision Co., Ltd. and Hi Healthcare Center Co., Ltd. (Herein after “The Subsidiaries”). Management’s discussion and analysis for Quarter 1’ 2020 4 / 7 3.1 Revenues from

100.00% 112.48 100.00% 28.10% 1B1, B2: Filters Vision Public Company Limited (Herein after “The Company”). 2B3 : Irving Corporation Ltd., KT Medical Services Co., Ltd., Medical Vision Co., Ltd. and Hi

Vision Co., Ltd. and Hi Healthcare Center Co., Ltd. (Herein after “The Subsidiaries”). $. Revenues from sales and services In the 3 rd Quarter of 2019, Revenue from sales of goods and services for the

% 1B1, B2: Filters Vision Public Company Limited (Herein after “The Company”). 2B3: Irving Corporation Ltd., KT Medical Services Co., Ltd., Medical Vision Co., Ltd. and Hi Healthcare Center Co., Ltd

Company Limited (Herein after “The Company”). 2 B3: Irving Corporation Ltd., KT Medical Services Co., Ltd., Medical Vision Co., Ltd. and Hi Healthcare Center Co., Ltd. (Herein after “The Subsidiaries”). 3.1

Vision Co., Ltd. and Hi Healthcare Center Co., Ltd. (Herein after “ The Subsidiaries” ). Core revenue of the Group for the Year 2018 increasingly adjusted at 197.45 MB or 42.99 per cent from the previous

Vision Co., Ltd. and Hi Healthcare Center Co., Ltd. (Herein after “ The Subsidiaries” ). 3.1 Revenues from sales and services In the 3rd quarter of 2018, the Group had revenue from sales of goods and