1 - TRANSLATION - KT/PB (Q-Con) 012/2019 May 9, 2019. Attention Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis the first quarter ended 31 March 2019

Our Ref: No.V. 019/2018 May 15,2018 Subject : Explanation for operation of first quarter of year 2018 Attn : Managing Director The Stock Exchange of Thailand Enclosed please find the financial

Our Ref: No.V. 039/2018 November 13,2018 Subject : Explanation for operation of third quarter of year 2018 Attn : Managing Director The Stock Exchange of Thailand Enclosed please find the financial

19.66 10.88 Gross profit 10.73 54.53 44.08 -10.45 -19.16 33.35 310.73 Profit (Loss) from exchange rate 0.87 3.00 1.19 -1.81 -60.28 0.32 36.31 Other Income 1.00 0.65 2.13 1.49 230.70 1.13 113.09 Gain from

-16.72 -7.71 19.66 10.88 Gross profit 10.73 54.53 44.08 -10.45 -19.16 33.35 310.73 Profit (Loss) from exchange rate 0.87 3.00 1.19 -1.81 -60.28 0.32 36.31 Other Income 1.00 0.65 2.13 1.49 230.70 1.13

Company’s net profit increased by 560.82% or equal to Baht 91.92 million as compared to the same quarter of 2019 which was recorded at Baht 13.91 million. During the 1H20, the Company recorded the net profit

, the Company’s net profit decreased by 38.61% to Baht 41.46 million as compared to Baht 67.54 million in the comparable quarter in 2018. For the first 9 months of 2019, the Company had recorded the net

) (6.13) - (18.63) (18.63) Finance costs (30.84) (17.11) (62.68) (33.34) SHARE OF LOSS OF INVESTMENTS IN JOINTLY CONTROLLED ENTITIES ON EQUITY METHOD (0.11) (1.47) (0.12) (2.04) PROFIT (LOSS) BEFORE TAX

works and services 70.25 60.73 9.52 15.68 Total Costs of Sales and Services 162.73 177.34 (14.61) (8.24) Gross Profit 52.84 65.94 (13.10) (19.87) Other incomes 1.69 2.34 (0.65) (27.78) Distribution costs

11.77 10.17 Cost of project works and services 59.11 55.76 3.35 6.01 Total Costs of Sales and Services 186.63 171.51 15.12 8.82 Gross Profit 62.89 74.55 (11.66) (15.64) Other incomes 1.97 2.48 (0.51