SINO-THAI ENGINEERING AND CONSTRUCTION PUBLIC COMPANY LIMITED SIRAKORN PUBLIC COMPANY LIMITED SIS DISTRIBUTION (THAILAND) PUBLIC COMPANY LIMITED SISB PUBLIC COMPANY LIMITED SITRON POWER PUBLIC COMPANY
investments Table 4: Key Financial Ratios 4Q 3Q 4Q YoY QoQ FY FY YoY 2017 2018 2018 (%) (%) 2017 2018 (%) Profitability Ratio Gross profit margin (%) 48% 48% 47% (1%) (0%) 50% 48% (1%) Rent and services 49% 49