of 2019. A summary of the Company’s operating performance in the second quarter of 2020 and 2019 is shown in the following table: 2Q20 1Q20 % Change 2Q19 % Change [Amount in Baht Million] Q-o-Q Y-o-Y

and 2018 Unit: Million Baht Q3’2019 Q3’2018 Increase (Decrease) % Change Sales income 15,219.71 15,400.82 (181.11) (1.18%) Rental and service income 666.38 598.17 68.22 11.40% Other income 489.38 494.97

CONSTRUCTION EXECUTIVE SUMMARY EXECUTIVE SUMMARY 2 Q1’19 Q4’19 Q1’20 change change Btmn Btmn Btmn y-on-y q-on-q Sales and service income 10,257 11,258 11,223 9.4% (0.3%) EBITDA* 2,413 2,938 3,278 35.8% 11.6% Net

of 2018. A summary of the Company’s operating performance in the first quarter of 2019 and 2018 is shown in the following table: 1Q19 4Q18 % Change 1Q18 % Change [Amount in Baht Million] Q-o-Q Y-o-Y

31, 2021, which can be summarized as follows: 1) Profit & Loss Analysis : Q1 2021 (Unit : Million Baht unless otherwise stated) Q1 2021 Q1 2020 Change Amount % Change Total Revenues 5,739 5,208 532

31, 2022, which can be summarized as follows: 1) Profit & Loss Analysis : Q1 2022 (Unit : Million Baht unless otherwise stated) Q1 2022 Q1 2021 Change Amount % Change Total Revenues 6,815 5,739 1,076

of March 31, 2023, which can be summarized as follows: 1) Profit & Loss Analysis : Q1 2023 (3 Months) (Unit : Million Baht unless otherwise stated) Q1 2023 Q1 2022 Change Amount % Change Total Revenues

result. Dear sir, We, Unimit Engineering Public Company Limited (UEC) , would like to clarify the change in operating result for 2018 which changing over 20% from the same period last year as follows

gain/(loss) 3.11 (0.35) -111.25% Other income 5.47 2.36 -56.86% Earnings before interest and taxes 86.99 64.97 -25.31% Financial expense (0.76) (2.30) 202.63% Profit before income tax expense 86.23 62.67

result. Dear sir, We, Unimit Engineering Public Company Limited (UEC) , would like to clarify the change in operating result for Q2/2019 which changing over 20% from the same period last year as follows