use in surface hardening services for screw flight that resulted to trade account payables to be increased. As of September 30, 2018 the Company and its subsidiary had the proportion of current portion
business according to the accounting standards under WHA level. However, the genuine gross margin in were at 53.0% and 51.1%, respectively. The decrease in genuine gross margin, compared to the same period
genuine gross margin in were at 52.5% and 51.5%, respectively. The decrease in genuine gross margin, compared to the same period of last year, was mainly due to change in product mix between Built-to-Suit
side Road surface Reinforced concrete Width/right of way (meters) 24 / 42 meters Public utilities Electricity, plumbing and telephone City plan Commercial Dense residential Environment Residential
. However, the genuine gross margin in the second quarter of 2017 was at 60.6% for the warehouse rental and service business which decreased from 68.8% last year, mainly due to change in product mix between
standards under WHA level. However, the genuine gross margin in the first quarter of 2019 was at 49.0% for the warehouse rental and service business which decreased from 51.5% in the same period of previous
level. However, the genuine gross margin in the first quarter of 2020 was at 69.6% which increased from 54.4% in the same period of previous year, mainly due to higher occupancy rate. 2. Sale of
equipment of the MRT Blue Line Extension Project in the amount of Baht 1,867 Million, payment fo r cons t ruc t io ns o f the Si Rat-Outer Ring Road Expressway and fixed asset for the operation in the amount
to the expansion of the electric train network to more outer city locations. In addition, this group of customers has the objective of buying for real residence and there is still fluctuation of demand