family business and illiquid stocks, the sample data, is the low turnover ratio (Anderson and Reeb, 2003). The previous studies recommend the relationship between corporate governance characteristic, size

herewith explanation and analysis of the Management as follows. 1. Income, gross profit, net profit Unit : Million Baht 1. Income 2018 2017 2016 Increase (decrease) 2018-2017 1.1 Construction material 233.01

+ (-) % Total revenue 20,778.00 24,680.00 (15.81) Revenue from Sale 19,535.00 23,592.00 (17.20) Cost of sales 12,079.00 15,415.00 (21.64) GROSS PROFIT 7,456.00 8,177.00 (8.82) Selling and Administrative Expenses

December 31, 2017 + (-) % Total revenue 132,427.65 95,599.22 38.52 Revenue from Sale 127,813.63 90,492.00 41.24 Cost of sales 76,977.28 57,183.36 34.61 GROSS PROFIT 50,836.35 33,308.64 52.62 Selling and

September 30, 2018 + (-) % Total revenue 36,407.00 38,098.00 (4.44) Revenue from Sale 31,254.00 36,561.00 (14.52) Cost of sales 18,319.00 21,811.00 (16.01) GROSS PROFIT 12,935.00 14,750.00 (12.31) Selling and

December 31, 2018 + (-) % Total revenue 159,776.68 130,831.82 22.12 Revenue from Sale 152,317.88 126,217.80 20.68 Cost of sales 94,646.43 78,653.51 20.33 GROSS PROFIT 57,671.45 47,564.29 21.25 Selling and

+ (-) % Total revenue 22,945.00 9,459.00 142.57 Revenue from Sale 21,469.00 6,470.00 231.82 Cost of sales 12,672.00 5,531.00 129.11 GROSS PROFIT 8,797.00 939.00 836.85 Selling and Administrative Expenses 9,130.00

September 2016 + (-) % Total revenue 33,053.00 16,105.00 105.23 Revenue from Sale 31,795.00 14,980.00 112.25 Cost of sales 19,933.00 9,382.00 112.46 GROSS PROFIT 11,862.00 5,598.00 111.90 Selling and

+ (-) % Total revenue 53,712.00 27,095.00 98.24 Revenue from Sale 53,152.00 25,997.00 104.45 Cost of sales 33,247.00 16,594.00 100.36 GROSS PROFIT 19,905.00 9,403.00 111.69 Selling and Administrative Expenses

+ (-) % Total revenue 27,616.00 22,748.00 21.40 Revenue from Sale 26,518.00 21,469.00 23.52 Cost of sales 16,151.00 12,672.00 27.45 GROSS PROFIT 10,367.00 8,797.00 17.85 Selling and Administrative Expenses