May 14, 2020 Reference no. RWI /BKK/018/2563 Subject : Management’s Discussion and Analysis of Business Operations of the First Quarter of 2020 To The Director and Manager of the Stock Exchange of

. Their financial and stock transactions were interconnected, while Mr. Suthee was also authorized to place trade orders in Mr. Peeranut’s securities trading account. During the incident period, Mr. Suthee

February 18, 2020 Re: Management Discussion and Analysis for full year 2019 To: Director and Manager of the Stock Exchange of Thailand Revenue from sales and rendering of services L&E’s consolidated

Manager of The Stock Exchange of Thailand Union Petrochemical Public Company Limited and its subsidiaries ("the Company") would like to clarify the operating results for the Quarter 3/2019 ended September

November 13, 2019 Re : Management Discussion and Analysis for Q3/2019 To : Director and Manager of the Stock Exchange of Thailand Revenue from sales and rendering of services L&E’s consolidated

} and an unknown person, for manipulating share price of Union Petrochemical Plc. (UKEM).With the referral from the Stock Exchange of Thailand on irregular trading in UKEM shares by a group of persons

).  With the referral from the Stock Exchange of Thailand on irregular trading of UNIQ shares as a result of trading orders sent via two overseas omnibus accounts causing the changes of UNIQ share price and

entitled to revenue sharing around 1,120 million baht.With the referral from the Stock Exchange of Thailand, the SEC probed into the case and found that Sunthorn had attended the negotiations between SOLAR

} and (11) {K} for manipulating share price of Millcon Steel Plc. (MILL).  With the referral from the Stock Exchange of Thailand on irregular trading of MILL shares by a group of persons, the SEC probed

manipulating share price of Thai Plastic and Chemicals Plc. (TPC). With the referral from the Stock Exchange of Thailand on irregular trading of TPC shares by a group of persons, the SEC probed into the case and