November 28, 2005 No. 10 /2017 August 9, 2017 President The Stock Exchange of Thailand 62 Ratchadapisek Road, Klongtoey, Bangkok 10110 Subject : Clarification of the operating result. Dear sir, We

The Stock Exchange of Thailand The Company wishes to present the Management Discussion & Analysis (MD&A) on the operating and financial status for the 1st quarter of 2019. The MD&A would enable the

President The Stock Exchange of Thailand The Company wishes to present the Management Discussion & Analysis (MD&A) on the operating and financial status for the 2nd quarter of 2019. The MD&A would enable the

(Translation) LEE 08/2019 9 August 2019 Subject : Management Discussion and Analysis for the second quarter ended June 30, 2019 To : President of The Stock Exchange of Thailand We submit herewith the

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 2/2019 ended June 30

previous quarterly To: The President The Stock Exchange of Thailand Thailand's economic outlook for the year 2018 is likely to be bright. After seeing a clear recovery in the last quarter of last year

November 28, 2005 No. 10 /2018 November 8, 2018 President The Stock Exchange of Thailand 93 Ratchadapisek Road, Kwang Dindaeng, Khet Dindaeng, Bangkok 10400 Subject : Clarification of the operating

President The Stock Exchange of Thailand The Company wishes to present the Management Discussion & Analysis (MD&A) on the operating and financial status for the 3rd quarter of 2019. The MD&A would enable the

15, 2019 Subject: MD&A for the financial statements of the 1st quarter of fiscal year 2019 ended as of March 31, 2019 To: The President The Stock Exchange of Thailand Aapico Hitech Public Company

YONG THAI PUBLIC COMPANY LIMITED 633/14 Sathupradit Road, Yannawa, Bangkok 10120 Thailand Tel. (662) 2943364-8, Fax : (662) 2943373 YTC 16/2018 May 15, 2018 To : The President The Stock Exchange of