addition, the cost per unit decreased due to the increased production volume (Economy of scale). • Gross Profit margin in Q4/2023 was 65.0%, increased from 62.9% in Q4/2022, and Gross Profit margin in 2023

from same-store sales growth and the increase in the number of branches, as well as the decrease in cost per unit from the increase in production volumes resulting in economies of scale. • Gross Profit

Limited Page 1/14 Management Discussion and Analysis for year 2019 1. Highlights Unit: million Baht Year 2019 Year 2018 P er fo rm a n ce Revenues 12,923 29,910 Sales Volume (k tons) 710 1,447 EBITDA (271

Unit: million Baht 2 nd Quarter 2017 2 nd Quarter 2016 Group Revenues 3,276 3,278 Group Sales Volume (k tons) 188 188 Group EBITDA 64 613 P er fo rm an ce Group Net Profit (Loss) (233) 183 HRC Sales (k

Management’s Discussion and Analysis (MD&A) For Q3/2017 1 1. Highlights G J Steel Public Limited Management’s Discussion and Analysis (MD&A) Q3/2017 Unit: million Baht 3rd Quarter 2017 3rd Quarter

Management’s Discussion and Analysis (MD&A) for year 2017 1 1. Highlights G J Steel Public Limited Management’s Discussion and Analysis (MD&A) for year 2017 Unit: million Baht Year 2017 Year 2016 Pe

Management’s Discussion and Analysis (MD&A) for year 2017 (Revised) 1 1. Highlights G J Steel Public Limited Management’s Discussion and Analysis (MD&A) for year 2017 (Revised) Unit: million Baht

1 G J Steel Public Limited Management’s Discussion and Analysis (MD&A) for year 2018 Unit: million Baht Year 2018 Year 2017 Pe rfo rm an ce Revenues 29,910 15,178 Sales Volume (k tons) 1,447 812

G J Steel Public Limited Management’s Discussion and Analysis (MD&A) for year 2018 (Revised) Unit: million Baht Year 2018 Year 2017 Pe rf or m an ce Revenues 29,910 15,178 Sales Volume (k tons) 1,447

1 G J Steel Public Limited Management’s Discussion and Analysis (MD&A) Q1/2019 Unit: million Baht 1st Quarter 2019 1st Quarter 2018 Pe rfo rm an ce Revenues 3,398 8,117 Sales Volume (k tons) 177 388