month period ended 31 March 2020 and 2019 are as follows; Unit: THB million Q1-2020 Q1-2019 % Change 1. Revenue from sales and contract work 4.7 3.2 44.2% 1.1 Turnkey Total Solutions 4.7 3.2 44.2% 2
revenues from services business of Baht 634.83 million of the quarter 1/2019. The significant decreasing came from the revenues decreasing of Transmission line work. The revenues from sale business of the
period of last year, Revenue from project work and services decreased. Because such income depends on value of fire fighting contractor projects each year. Gross Profit and Gross Profit Margin For the year
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and work retention. • Inventories increased by Baht 13 million. This was primarily due to work in progress for engineering service. • Restricted cash increased Baht 12 million due to maintenance reserve