subsidiary has been restructured by set to work together. As a result, the cost of staff decreased, such as the cost of travel, commission fee as the overall revenue continues to increase. 3.4 Administration

commission expense from Hi Healthcare center Co., Ltd. for improve sale and service. 3.4 Administration expenses The Group's administrative expense was increased from the year 2018 in an amounting of Baht

Co., Ltd. was decreased from Wuttisak Clinic was temporary closed from COVID - 19. 3.4 Administration expenses The Group's administrative expense was decreased from the same period of previous year in

the year 2019 in an amounting of Baht (3.87) million or (10.39) percent. Mainly came from growth of revenue in last year while fixed cost still constant. 3.3 Administration expenses The Group's

organizing activities involving large gatherings of people which may pose the risk of spreading the disease. In addition, the Bangkok Metropolitan Administration has issued an announcement dated March 21, 2020

thus significantly reduced the cost of sales and administrative expenses . Overall gross profit margin improved to 42.3% from 30.7% in 2018 Selling and Administration expenses The Company recorded

shares, at a par value of Baht 10 per share, equivalent to the total value of Baht 510,000,000, (the “Investment in Ordinary Shares of S-TREK”) which the payment of such shares shall be by means of share

. The changings are as follow: Cost of contract work amount 131 million Baht decreased by 85 million Baht (39%). Selling expenses amount 6 million Baht nearly same as Q1/2017. Administration expenses

THB 145.59 million, and Water Supply of THB 11.75 million. 3. Administration Expenses In The year 2018, such expenses are THB 90.84 million which decreases from that of year 2017 by THB 61.66 million. a

7 million Baht nearly same as Q2/2016. Administration expenses amount 24 million Baht, decreased by 4 million Baht (13%). Income Tax Income tax of Q2/2017 amount 1 million Baht decreases by 5 million