MDA Q2_2017 (Eng.) August 10, 2017 Subject : Interim Management Discussion and Analysis of Q2/2017 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

MDA Q3_2017 (Eng.) November 8, 2017 Subject : Interim Management Discussion and Analysis of Q3/2017 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

MDA 2017 (Eng.) February 20, 2018 Subject : Yearly Management Discussion and Analysis of 2017 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements of

.............................................................................................. I hereby certify that the above statements and the supplementary documentation attached herewith are complete, accurate and true. Concurrently, the applicant has provided a copy of the certification

MD&A Q1_2019 (Eng ) May 2, 2019 Subject : Interim Management Discussion and Analysis of Q1/2019 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements of

Financial Statements is attached herewith for your acknowledgement and disseminating to investors accordingly. Yours Sincerely, ( Kamtorn Sila-On ) President Production and Finance S & P Syndicate Public

MDA Q2_2019 (Eng ) August 9, 2019 Subject : Interim Management Discussion and Analysis of Q2/2019 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

MDA Q2_2018 (Eng.) August 7, 2018 Subject : Interim Management Discussion and Analysis of Q2/2018 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

MDA Q3_2018 (Eng.) November 7, 2018 Subject : Interim Management Discussion and Analysis of Q3/2018 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

to 4.15 percent. The Financial Statements is attached herewith for your acknowledgement and disseminating to investors accordingly. Yours Sincerely, ( KamtornSila-On ) President - Production and