1 / 2 IR.019/2017 15 August 2017 Re: Clarification on the change of profit and loss statement To President The Stock Exchange of Thailand T Engineering Corporation Public Company Limited (the

Waste Power Plant 61.7 65.2 3.5 5.7% Solar Engergy Power Plant 1.9 2.9 1.0 52.6% Gross Profit by Segment 439.4 471.6 32.2 7.3% Gross Profit Change Q1-2021 Q1-2022 Change Percent Percent Biomass Power

Power Plant 140.3 146.5 6.2 4.4% Municipal Solid Waste Power Plant 65.2 73.0 7.8 12.0% Solar Engergy Power Plant 2.9 3.0 0.1 3.4% Gross Profit by Segment 471.6 466.2 (5.4) (1.1%) Gross Profit Change Q1

loan. As a result, cost of goods sold and expenses of 1st quarter on year 2018 slightly increased by 8.98 percent from the same period last year. 1.3 Profit (Thousands Baht) 1st Quarter Change 2561 2560

was 1.19 million Baht. The change of net profit increased, accounting for 131.26%, which exceeds 20% compared to the same period of the previous year where the loss was 3.80 million Baht. However, the

percent accordingly from the same period of last year. 1.3 Profit (Thousands Baht) Year Change 4thQuarter Change 2560 2559 Amount % 2560 2559 Amount % Gross profit 505,963 542,580 (36,616) -6.75% 130,119

วันที่ 15 ตุลาคม 2545 1 NO. (SUTHA-SET) 016/2019/EN 14 August 2019 Subject : Clarification of Q2/2019 the total revenues and the Net profit change more than 20% To : The President of the Stock

expenses on 1st quarter of 2019 increased significantly 74.91 percent from the same period of last year. 1.3 Profit Consolidated (Thousands Baht) 1st Quarter Change 2019 2018 Amount % Gross profit 102,295

the same period of 2019 showed a profit of Baht 432.57 million, a change of loss increased by 101%. In 2019 the Group reversed the impairment loss of assets of Baht 462.86 million, remaining a net loss

35.7 Gross Profit by Segment 439.4 427.9 11.5 2.7 Q1-2021 Q1-2020 Change % Gross Profit % % Biomass Power Plants 31.2 36.3 (5.1) Natural Gas Power Plant 32.4 29.5 2.9 Municipal Solid Waste Power Plants