are Mr.Subbhalerk Na Songkla, Mr.Inthidej Polin, and Miss Nittaya Phudhiwat together as a concert party (“SUTGH shareholders”) which will hold 132,000 shares in SUTG or equal to 100 percent of the total

DCORP 011/2019 February 27, 2019 Subject: Report on the overall operation of the year 2018 ended December 31, 2018 and the decrease in the overall operation more than 20 percent Attention: President Stock

allocation of newly issued ordinary shares to the investor, the investor will represent 40 percent of the Company’s total issued shares (after the paid-up capital registration). Therefore, such issuance and

(0.2) 1.4 0.9 (35.7%) N.A.(>100) (0.7) 2.3 N.A.(>100) Gross Profit by Segment 420.1 427.9 446.1 4.3% 6.2% 774.6 874.0 12.8% Change Gross Profit Q2-2019 Q1-2020 Q2-2020 6M-2019 6M-2020 Change Percent

118.2% Gross Profit by Segment 446.0 439.4 465.6 6.0% 4.4% 873.9 905.0 3.6% Change Gross Profit Q2-2020 Q1-2021 Q2-2021 6M-2020 6M-2021 Change Percent Percent Percent QoQ YoY Percent Percent YoY Biomass

Gross Profit Q3-2020 Q2-2021 Q3-2021 9M-2020 9M-2021 Change Percent Percent Percent QoQ YoY Percent Percent YoY Biomass Power Plant 38.5 32.8 35.1 2.3 (3.4) 37.9 33.1 (4.8) Natural Gas Power Plant 31.1

- - 4.8 5.8 20.8% Gross Profit by Segment 465.6 471.6 463.7 (1.7%) (0.4%) 905.0 935.3 3.3% Gross Profit ChangeChange Q2-2021 Q1-2022 Q2-2022 6M-2021 6M-2022 Change Percent Percent Percent QoQ YoY Percent

%) 1,401.5 1,399.4 (0.1%) Gross Profit ChangeChange Q3-2021 Q2-2022 Q3-2022 9M-2021 9M-2022 Change Percent Percent Percent QoQ YoY Percent Percent YoY Biomass Power Plant 35.1 30.4 29.0 (1.4) (6.1) 33.1 30.4

% 10.3% 5.8 6.2 6.9% Gross Profit by Segment 463.7 466.2 421.6 (9.6%) (9.1%) 935.3 887.7 (5.1%) Gross Profit Margin Q2-2022 Q1-2023 Q2-2023 Change 6M-2022 6M-2023 Change Percent Percent Percent QoQ YoY

Q3-2022 Q2-2023 Q3-2023 Change 9M-2022 9M-2023 Change Percent Percent Percent QoQ YoY Percent Percent YoY Biomass Power Plant 29.0 25.4 28.3 2.9 (0.7) 30.4 27.2 (3.2) Natural Gas Power Plant 18.0 21.2