Page 1 of 4 No. RJH – SET 7/2020 11 May 2020 Subject : Management’s Discussion and Analysis for the First Quarter of 2020 To : The President The Stock Exchange of Thailand Rajthanee Hospital Public

Stock Exchange of Thailand The Board of Director’s meeting No. 3/2020 of General Engineering Public Company Limited (“the Company”) held on May 15, 2020 has approved and verified the financial statements

August 11, 2020 Subject: Management’s Discussion and Analysis for the second Quarter of 2020 To: The President The Stock Exchange of Thailand (SET) DOD Biotech Public Company Limited and its subsidiaries

No. ADD 4/2022 23 February 2022 Subject: Management discussion and analysis for the performance of the year 2021 ended 31 December 2021 To: President The Stock Exchange of Thailand AddTech Hub Public

No. ADD 19/2022 11 May 2022 Subject: Management discussion and analysis for the performance for the three-month period ended 31 March 2022 To: President The Stock Exchange of Thailand AddTech Hub

financial institution under the Law on Loan Interests of Financial Institutions; “Stock Exchange” means the Stock Exchange of Thailand under the Law on Securities and Exchange; “SEC Office” means the Office

No. ADD 3/2024 22 February 2024 Subject: Management discussion and analysis for the performance for the year ended 31 December 2023 To: President The Stock Exchange of Thailand AddTech Hub Public

Dubai crude in Q1/2020 was at 50.41 $/BBL, a decline of 11.63 $/BBL, or a decline approaching almost 20% from the previous quarter. Moreover, the COVID-19 outbreak in Thailand caused demand for fuel

granted the concession for the MRT Blue Line Project by the Mass Rapid Transit Authority of Thailand (“MRTA”) under the MRT Blue Line Concession Agreement on March 31, 2017, under which the Company has the

Rapid Transit Authority of Thailand (“MRTA”) under the MRT Blue Line Concession Agreement on March 31, 2017, under which the Company has the duties to design, supply, install, test the M&E Equipment, and