incurred was higher than the estimate. And Compare to the profit of Q2–2021 and Q2–2020, it found that the rate of change was significantly increased. Those have the increased rate -2- in profit is equal to

February 2020 Subject: Clarification of the operating results for the year ended 31 December 2019, change of rate more than 20 percent To: Director and Manager The Stock Exchange of Thailand Ocean Commerce

. OCMSET/1907/003 July 30, 2019 Subject: Clarification of the operating results for the six-month period of 2019, change of rate more than 20% Dear: Director and Manager the Stock Exchange of Thailand

total operating expenses varied in line with the company’s revenue. Comparing the total revenue and the total operating expenses in Q2–2019 with Q1–2019 and Q2-2018, it showed that the change rate had

increase rate in total operating expenses in Q2- 2023 was slightly higher than the change in total revenue because projects delivered in the 2Q- 2023 has a lower gross margin than projects delivered in Q1

Q3–2018 and Q2–2018 and Q3–2017, it found that the change rate was decreasing in the same direction and very close ratio. In Q3–2018, the Company’s profit slightly decreased compared to Q2–2018

% [ Remark * Excludes foreign exchange rate effects. ** Excludes foreign exchange rate effects and impairment loss. *** Excludes foreign exchange rate effects and change in retirement benefit provisions

busine m Japan proj increased by sued B/E an f Baht 2,362 s the Co-Gener ofit from inve aht 51.23 mil period of las past service from 300 to 4 d administrat change rate lo aht 33.30 mill used by WPS

profi rison to profi %. from investm 101.59 millio change rate lo Baht 21.93 nt the unreali aht 79.19 mill or 69.40% fr ,479.10 milli n, which has t and Vietnam ht 41.83 millio m. ration Combi it from

% Y-o-Y and an increase of 1.5% Q-o-Q. The Y-o-Y decrease was primarily attributed to the reduction in gross profit rate, the substantial effect of a change in foreign currency exchange rates and an