Discussion & Analysis Q3/2021 Operating Highlights in Q3/2021 Q3/20 Q3/21 Change +/(-) 9M/20 9M/21 Change +/(-) (THB million) %YoY %YoY Operating Revenue 198 115 (42%) 561 431 (23%) Gross Profit 124 60 (52

Discussion & Analysis Q1/2022 Operating Highlights in Q1/2022 Q1/21 Q1/22 Change +/(-) (THB million) %YoY Operating Revenue 179 198 11% Gross Profit 105 120 14% EBITDA 57 58 2% Net Profit (Loss) for the

Summary Significant Events Operating Highlights in Q1/2023 Q1/22 Q1/23 Change +/(-) (THB million) %YoY Operating Revenue 198 264 33% Gross Profit 120 168 40% EBITDA 58 80 38% Net Profit (Loss) for the

rfo rm an ce Revenues 15,178 11,669 Sales Volume (k tons) 812 722 EBITDA 1,062 1,189 Net Profit (Loss) 990 (7) HR C HRC Sales (k tons) 812 722 HRC Production Volume (k tons) 876 733 HRC Average Selling

Year 2017 Year 2016 Pe rfo rm an ce Revenues 15,178 11,669 Sales Volume (k tons) 812 722 EBITDA 1,062 1,189 Net Profit (Loss) 990 (7) HR C HRC Sales (k tons) 812 722 HRC Production Volume (k tons) 876

year 4,379 (23,821) +118.38 Other Comprehensive Income: - Profit (loss) on mathematical projections Insurance for Employee Benefits Scheme - Income tax on profit (loss) Actuarial gain for employee

4.86 Total income 7.58 16.88 Net profit (0.27) 0.99 Earnings per share (Baht) (5.55) 20.38 Book value per share (Baht) (139.56) (91.74) 7. Criteria used to determine value of compensation Total

210.03 98.73 47.01% Gross profit from sales and services 22.37 24.34 (1.97) (8.09%) 22.59 (0.22) (0.97%) 44.97 55.95 (10.98) (19.62%) Other income 2.98 1.18 1.80 152.54% 3.13 (0.15) (4.79%) 6.12 2.81 3.31

results for the Quarter 3’ 2018 Page 2 / 7 2018 2017 YoY % 2018 QoQ % 2018 2017 YoY % Revenues from sales and services 166.84 127.06 39.78 31.31% 164.67 2.17 1.32% 475.61 337.09 138.52 41.09% Gross profit

revenue from bad debt recovery continued growing by 19% y-y and the revenue from overseas subsidiaries grew by 18% y-y. Details of each business can be described as follows: Profit and Loss Statement