. 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

in operating assets and liabilities of Baht 155 million; and (2) cash inflows from net change in working capital of Baht 88 million, mainly due to increase of account receivable and a decrease in

QoQ Sales and service income Change YoY Sales and service income for 2020 compared to 2019 increase by 0.7% YoY from Baht 4,950.6 million to Baht 4,987.6 million. The increase of Baht 37.0 million

project, which delays due to change in policy on procedure and the license approval process of the licensing agency, which is the Department of Energy, Ministry of Energy, the Phillipines. It is still in

Property and Loan Funds; “inside information” means any fact that is material to the change of the prices of securities or derivatives and has not been disclosed to the public, and any information related to