has recovered from the easing of COVID- 19 measurements and the end of the government measurements including free internet data, free minutes for voice calling, subsidies in utilities in the previous
subsidies from the Department of Employment. Cost of Sales and Services For 1st quarter of 2022, the Company and subsidiaries’ cost of sales and services was Baht 2,208.18 million, increased by Baht 889.18
sales and service Cost of sales and service for the period ended 31 March 2020 and 2019 are presented below: Q1-2020 Q1-2019 THB Mn THB Mn THB Mn % Fuel materials cost 210.0 215.9 (5.9) (2.7) Depreciation
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
revenue: average prices have resumed an upward trend having fluctuated somewhat over the quarter due to product mix impact. This upward trend is set to continue as input prices such as fuel rise. Saraburi
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
vs. total revenue has increased significantly. The main factors behind this unwelcome trend was a jump in fuel (petroleum coke) prices, and increased manufacturing cost of machinery equipment. However