previous year were as highlighted below ; (Unit : Million Baht) Q1/2018 Q1/2017 % Change Sales and Service Income 467 461 1 Cost of sales and Services 384 339 13 Selling and Administrative Expenses 60 70 (14

Margin was affected by two major factors: 1) a change in foreign currency rates Table 1: Foreign currency exchange rates and sales in foreign currency 2) a higher cost of main raw materials Table 2: Raw

: 1) a change in foreign currency rates Table 1: Foreign currency exchange rates and sales in foreign currency 2) a higher cost of main raw materials Table 2: Raw material prices and purchased volume

year were as highlighted below; (Unit : Million Baht) Separate financial statements Q2/2018 Q2/2017 % Change Sales 469 521 (10) Gross Profit Margin 379 396 (4) Selling and Administrative Expenses 54 51 6

www.bangkokchainhospital.com บริษทั บางกอก เชน ฮอสปิทอล จ ากดั (มหาชน) Bangkok Chain Hospital Public Company Limited No. BCH.029/2019 28 February 2019 Subject : Explanation of the change in operating results for the year 2018

www.bangkokchainhospital.com บริษทั บางกอก เชน ฮอสปิทอล จ ากดั (มหาชน) Bangkok Chain Hospital Public Company Limited No. BCH.064/2018 14 May 2018 Subject : Explanation of the change in operating results of Q1/2018 which exceed

same period of 2018. The main reasons is from consumers have change behavior which affected circulation revenue decreased by 24% and advertising revenues decreased by 1% whereas revenues from event

change in foreign currency rates Table 1: Foreign currency exchange rates and sales in foreign currency 2) a higher cost of main raw materials The effect from copper usage was about 2.7% on product sales

result. Dear sir, We, Unimit Engineering Public Company Limited (UEC) , would like to clarify the change in operating result for 2018 which changing over 20% from the same period last year as follows

666.73 million which increased by Baht 60.62 million or 10% from the previous year. Such change was in line with the sales volume and additional overhead expenses from the new factory located at Amata City