decrease in unit rate which is adjusted in line with the decrease in average natural gas price, thus sales also decrease in line with the fuel material cost of natural gas. Sales and service income (included

costs as our fuel expenses have increased in recent months in line with the general trends on the solid fuel market. The operational efficiency improvement projects will along with fixed cost discipline

31 March 2023 and 2022 are presented below: Q1-2022 Q1-2023 Cost of sales and service THB Mn THB Mn THB Mn % Fuel materials cost 808.1 905.5 97.4 12.1% Depreciation and amortisation cost 165.8 173.4

also decrease in line with the fuel material cost of natural gas. In addition, sales of biomass power plants which decreased by Baht 68.5 million as the biomass power plants had shutdown hours to improve

, operates the business of manufacturing and distribution of dialysis and medical equipment, later in February 2018, NCLpurchased some shares from a shareholder, making it the major shareholder with 52.80% of

overview of performance. Unit : Million Baht For the three-months ended 31 March Items Increased (Decreased) 2019 2018 Amount Percentage 1 Revenue from steel tower manufacturing 226.94 177.01 49.93 28.21 2

. Unit : Million Baht For the three-months ended 31 March Items Increased (Decreased) 2018 2017 Amount Percentage 1 Revenue from steel tower manufacturing 177.01 249.73 (72.72) (29.12) 2 Revenue from sale

solution and other medical product manufacturing and trading business. Previously the company held 44% of all shares. Later in February 2018, the company acquired additional shares from one of the

% % 2020 % 2019 % % Revenue from sale 272.47 41.07% 389.02 71.31% -29.96% 600.81 60.91% 795.91 66.61% -24.51% Revenue from manufacturing and service 105.03 15.83% 147.41 27.02% -28.75% 216.52 21.95% 376.15

in quarter 3/2020.  Revenue from manufacturing and service of 419.16 million baht as 227.84 million baht decreased or 35.21 percent when compared to the same period of previous year of 647 million