Baht/share to 0.29 Baht/share. Gross Profit Margin decreased from 16.17% to 13.77%. For the six-month period of 2018, the Company's profitability decreased from the same period of the previous year as

international business from Master Ad Public Company Limited as a result of the coronavirus pandemic.  Recorded net profit of THB 12mn with a net profit margin 1.7%. KEY BUSINESS AND STRATEGIC UPDATES 1

company -243.50 -59.81 -183.69 -307.12 Financial Position as at December 31 (Unit : Million Baht) 2018 2017 Inc./(Dec.) % Current Assets 423.04 305.00 118.04 38.70 Non-Current Assets 920.89 259.75 661.14

1 | MANAGEMENT DISCUSSION AND ANALYSIS FOR THE YEAR 2020 Management Discussion and Analysis for the Year 2020 1 March 2021 In the 3-month period of Q4-2020, UWC reported gross margin of THB 28.04

margin of the projects delivered in Q1–2018 was lower than those in Q1–2017. The reason came from the higher market competition and the increase of employee cost. Comparing the profit of the Company for Q1

million , increase Baht 0.37 million or 19.09%, because in nine months of 2017 there is an interest income from current investment. 2 . Cost of sale , Profit margin For nine months ended September 30, 2017

EBITDA 612 1,062 Net Profit (Loss) (836) 990 HR C HRC Sales (k tons) 1,447 812 HRC Production Volume (k tons) 1,436 876 HRC Average Selling Price (THB./ton) 20,663 18,690 HRC Cash Margin (THB./Ton) 854

812 EBITDA 612 1,062 Net Profit (Loss) (836) 990 HR C HRC Sales (k tons) 1,447 812 HRC Production Volume (k tons) 1,436 876 HRC Average Selling Price (THB./ton) 20,663 18,690 HRC Cash Margin (THB./Ton

37% EBITDA 81 111 36% 223 288 29% Net Profit (Loss) for the Company 34 54 59% 82 131 60% Gross Profit Margin (%) 64.6% 66.0% 1.3% 63.2% 64.8% 1.6% EBITDA Margin1 (%) 32.8% 32.6% (0.2%) 32.6% 31.6% (1.0

Q1/2020 ended March 31, 2020 of the Company and its subsidiaries, as shown below: (Unit : Thousand Baht) Q1/2020 Q1/2019 Change %Change Revenue 212,967 236,732 (23,765) (10.04%) Gross profit margin