, the Company was affected by the ongoing outbreak of COVID–19 which caused the customers to change the work methods resulting in the delay in delivery and inspection of equipment or project. As a result

government measures to control the epidemic situation of COVID– 19. Consequently, the customers change the method of work, resulting in delays in delivery or inspection of equipment or operations. As the

Discussion and Analysis Quarter 3 Ended 30 Sep 2017 To The President of the Stock Exchange of Thailand Management’s Discussion and Analysis Consolidated Financial Results for the three-month and the nine-month

previous year. The Company would like to clarify the reasons for the change in profits for 2017 compared to the previous year, as follows: Revenue In 2017, the Company had total revenues, as shown in its

. OCMSET / 1905/002 May 8, 2019 Subject: Clarification of the operating results for the three-month period of 2019, change of rate more than 20 percent Dear Director and Manager the Stock Exchange of

high progress rate of 37-38% depreciation change over same period of last year mainly due to the investment and launching of the new Excellence Center Building this year (2018). Profits According to the

to submit our management’s discussion and analysis for the second quarter in 2019, ended on June 30, 2019 as follows: (Unit : Million Baht) Jan - Jun 2019 Jan - Jun 2018 Increased/ (Decreased) % Change

; - FX gain of 532 million Baht; - the adjustment of the provision for rental assurance of OFCs of JASIF due to the change of the assumption (rental rate increase), amounting 497 million Baht; 2/2 and

, net profit amounted to THB 39.1 million, a decrease of THB 126.2 million or 76.4% from the same period last year. The main factor causing the operating results of the second quarter of 2020 to change

employee retirement benefit of THB 8.85 million due to the change of defined benefits plan: increased from a maximum of 300 days of wages to 400 days under the new Labor Protection Act since April 2020