Million Baht % Million Baht % Million Baht % Sales revenue - net 406.55 91.50% 361.42 91.88% (45.13) -12.49 % Revenue from contract works 32.46 7.31% 26.40 6.71% (6.06) -22.96% Revenue from service incomes

1 / year 2018 Change Million Baht % Million Baht % Million Baht % Sales revenue - net 108.37 92.86% 107.94 93.48% (0.42) -0.39 % Revenue from contract works 7.14 6.12% 6.40 5.54% (0.75) -10.48

, the Company’s administrative expenses increased in an amount of 334.94 million baht as a result of provision set aside for utility repair works in order to hand over to housing juristic person and for

develop the authentic learning process in order to prepare the graduates for real-world challenges as well as promote and support various academic projects to enhance the quality of academic works for

Mrs. Chamaiporn Yongwongpaiboon Mrs. Chamaiporn Yongwongpaiboon, Managing Director and Accounting and Finance Director of Permsin Steel Works Public Company Limited ("PERM"), knew the

Miss Natthaporn Yongwongpaiboon Mrs. Chamaiporn Yongwongpaiboon, Managing Director and Accounting and Finance Director of Permsin Steel Works Public Company Limited ("PERM"), knew the

Miss Lalinporn Yongwongpaiboon Mrs. Chamaiporn Yongwongpaiboon, Managing Director and Accounting and Finance Director of Permsin Steel Works Public Company Limited ("PERM"), knew the inside

Mr. Permsin Yongvongpaiboon Mrs. Chamaiporn Yongwongpaiboon, Managing Director and Accounting and Finance Director of Permsin Steel Works Public Company Limited ("PERM"), knew the inside

of the year 2017. The significant decreasing came from the reduction of the revenue construction works of renewable energy power plants projects in private sector according to industrial sector was

goods 167.64 153.36 14.28 9.31 Revenue from project works and services 80.96 67.18 13.78 20.51 Total Revenue from Sale and Services 248.60 220.54 28.06 12.72 Cost of sales of goods 118.22 112.99 5.23 4.63