SAAM Energy Development Public Company Limited - 1 - 10 May 2019 Subject: Management Discussion and Analysis for the period ended 31 March 2019 To: The President The Stock Exchange of Thailand SAAM

1 Ref: AC.016/2019 4 May 2019 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

30 July 2019 At: ACC/HO 017/19 Re: Management Discussion and Analysis for the Quarter of 2/2019 To: President The Stock Exchange of Thailand In the second quarter of 2019, the Thai economy inclined

from High-Valued Document. 2Q19 Revenue Breakdown Mil THB TBSPTKS 311 325 277 267 Q2 18 Q2 19 592 + 0.8% 588 T.K.S. Technologies Public Company Limited Management Discussion and Analysis Operating

1 IDH-AC-000-อส6208/22.00 9 August 2019 Re: Management Discussion and Analysis Operating results for the three-month and six-month period ended 30 June 2019 To: President The Stock Exchange of

Ref. PDI/BK-BS-050/2019 9th August 2019 Re: Management Discussion and Analysis (MD&A) For the three-month and six-month periods ended June 30, 2019 To: President The Stock Exchange of Thailand PDI

SAAM Energy Development Public Company Limited - 1 - 9 August 2019 Subject: Management Discussion and Analysis for the period ended 30 June 2019 To: The President The Stock Exchange of Thailand SAAM

1 Ref: AC.024/2019 3 August 2019 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

1 Ref: AC.017/2018 14 May 2018 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

26 July 2018 At: ACC/HO 021/18 Re: Management Discussion and Analysis for the three-month period and six-month ended 30 June 2018 To: President The Stock Exchange of Thailand The Thai economy