. Cost of Production and Service Cost of Production and Service of the Company and subsidiaries for the quarter ended September 30, 2019 comparing with the quarter ended September 30, 2018 increased from

% Million Baht % Sales Revenue 65.77 82.58% 63.35 79.06% (2.42) (3.69%) Revenue from contract work 12.32 15.46% 14.28 17.82% 1.96 15.93% Revenue from service income 0.61 0.76% 1.40 1.75% 0.80 131.23% Revenue

provide you our management discussion and analysis for the 3rd Quarter of 2019 and the nine-month period ended 30 September 2019, as follow: Sales and service income for three-month and nine-month periods

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Company. Cost of Production and Service Cost of Production and Service of the Company and subsidiaries for the quarter ended March 31, 2020 comparing with the quarter ended March 31, 2019 decreased from THB