materials The Company and its subsidiaries reported revenues from construction services and sales of construction materials of Baht 23,009.80 million, representing 92.79% of total revenues, a decrease of

; primarily from decreasing in raw materials and medical supplies. The inventory turnover period was 5 days, remained the same as 2016. The Company and its subsidiaries recorded allowance for non-movement

water, wastewater treatment and hydrogen and supplies its utilities to the Artlant PTA plant. PTA is a core strategic business of IVL and we are confident that over time the Portugal PTA plant will

million THB respectively, resulting in gross margin of 15.00% and 16.47%. Cost of sales can be broken down for turnkey business and for supply and maintenance of which mostly are materials, service / sub

15. 03% and 15. 18% . Cost of sales can be broken down for turnkey business and for supply and maintenance of which mostly are materials, service / sub-contractors and project management costs. Cost of

to the better control of selling unused materials and unused equipment. (4) Selling and Administrative Expenses Selling and administrative expenses for twelve months of year 2017 was 114.4 million Baht

priority, as well as the continuity of business operations. The whole supply chain has been reviewed to ensure no disruption or supply shortage. Alternative sources for key materials were identified, the

million Baht or 15.5%. Since 2018 has a gain on sales of fixed assets amounted 1.4 million Baht and in the year 2019, the company has decreased sales unused materials and unused equipment. (6) Selling and

follows: Income Statement For the three-month ended March 31 Change Unit: Million Baht 2018 2017 Amount % Revenues from construction services and sales of construction materials 7,389.74 8,064.50 (674.76

6.46 5.35 1.11 20.82 13.46 9.99 3.47 34.75 Drugs and medical supplies 0.11 0.24 (0.13) (54.12) 0.29 0.44 (0.15) (33.98) Other supplies 0.11 0.41 (0.29) (71.78) 0.34 0.58 (0.24) (41.55) X-ray 1.44 2.95