(Translation) Bangkok Expressway and Metro Public Company Limited Management Discussion and Analysis for the Quarter Ended on March 31, 2019 1 Significant events 1. The Extraordinary General Meeting

2018/2019 period ended 31 March 2019 submitted by Eastern Polymer Group Public Company Limited (the “Company”), please be informed that: FY 2018/19 FY 2017/18 Apr 18 - Mar 19 Apr 17 - Mar 18 Revenue from

2019/2020 period ended 30 June 2019 submitted by Eastern Polymer Group Public Company Limited (the “Company”), please be informed that: (Million Baht) Q1 2019/20 Q1 2018/20 Apr 19 - Jun 19 Apr 18 - Jun

1 / 2 No.IR.018/2020 14 May 2020 Re: Notification of the changes of the Profit and Loss Statement To: President Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited (the

T.K.S. TECHNOLOGIES 1 March 2021 Re: Management Discussion and Analysis for the period ended 31 December 2020 To: President The Stock Exchange of Thailand T.K.S. Technologies Public Company Limited

performance, particularly among businesses in the tourism sector. First-quarter performances have exceeded analyst expectations by more than half, signaling promising outlooks for sustained growth. The decrease

to invest, as deemed appropriate.” _____________________Remarks: * The investment rules of Thailand ESG Funds require investment in assets issued by the Thai public sector or businesses established

also promote dialogues and productive cooperation with public sector organizations, state enterprises, business sectors, civil society, the public and relevant international organizations to promote

knowledge among the public; and (6) enhancing SEC efficiency to attain sustainable growth and drive the success of policy implementation. Rapee added that the plan will aim to establish a foundation with

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