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

SAAM Energy Development Public Company Limited - 1 - 7 November 2019 Subject: Management Discussion and Analysis for the period ended 30 September 2019 To: The President The Stock Exchange of

K. W. METAL WORK PUBLIC COMPANY LIMITED Head office 259/83 Sukhumvit 71 road, Phrakhanong-nur, Wattana, Bangkok Branch 1 300/142 Moo. 1 Tambon Tarsit, Amohoe Pluag-daeng, Rayong Branch 2 300/138 Moo

SAAM Energy Development Public Company Limited - 1 - 12 May 2020 Subject: Management Discussion and Analysis for the period ended 31 March 2020 To: The President The Stock Exchange of Thailand SAAM

SAAM Energy Development Public Company Limited - 1 - 7 August 2020 Subject: Management Discussion and Analysis for the period ended 30 June 2020 To: The President The Stock Exchange of Thailand SAAM

Public Company Limited (TAKUNI) LPG trader under section 7 Paid-up Capital 400 Mil.Baht Rajchapluek Engineering Company Limited Non-Destructive Testing and Inspection services Paid-up Capital 20 Mil.Baht

Takuni Group Public Company Limited (TAKUNI) LPG trader under section 7 Paid-up Capital 400 Mil.Baht Rajchapluek Engineering Company Limited Non-Destructive Testing and Inspection services Paid-up Capital

USD 835 million. The project’s joint investors are the Company (60 percent), Lao World Engineering & Construction Company Limited (20 percent), and B.Grimm Power Public Company Limited (20 percent

capability to serve the enterprise segment, especially in cloud area. As a result, enterprise non-mobile revenue in FY21 climbed 18% YoY and accounted for 3.2% of core service revenue. In addition, AIS

scale” credit rating “investment grade” credit rating “IOSCO” International Organization of Securities Commissions “IPO” (Initial Public Offering) “issue rating” “issuer rating” “market price” “MF