. The sales of a new subsidiary company mostly came from Copper and Aluminum whereas stainless products were the main products of Company and its old subsidiaries. 1.2 Other income Other income consists

mainly due to the increase in overall sales volume of the exhaust automotive pipes. The majority sales of Company comprised of metal like stainless steel and non-ferrous metal like copper and aluminum

lockdown in many countries around the world including Thailand. But the negative impact on domestic consumption, manufacturing and export sectors persisted in this quarter, despite improvement from the

materials Copper, Copper Foil, Laminate and Fiberglass, as well as the appreciation of the THB. Despite the increase in raw material prices and the THB’s strengthening, an increase in capacity and efficiency

procurement thanks to a decrease in the cost of copper, implementing artificial intelligence technology (AI) in the workplace to improve the production process and efficiency, and reducing the Company’s

20.7% increased Q-o-Q from 18.9% but decreased Y-o-Y. In principle, the cost of production is influenced by factors such as the capacity utilization rate, product mix, a change in LME copper price and

Copper, Copper Foil, Laminate and Fiber glass. However, an increase in capacity and efficiency gained from Phase 3 of the new plant that supported volume growth helped lessen the effect of the above on

-o-Y due to the effect of the annual selling price adjustment, a change in foreign currency rates and an increase in the cost of goods sold resulting from a higher cost of raw materials Copper, Copper

resulting from a higher cost of raw materials Copper, Copper Foil, Laminate and Fiberglass. However, an increase in capacity and efficiency gained from the latest investment that supported sales volume growth

pressured the profit margin. The price of copper decreased, which resulted in the cost of goods sold decreasing by 1.2% in 1Q19. Administrative and Selling Expenses Selling, general, and administrative