(%) 62.6% 58.7% (3.9%) EBITDA margin (%) 26.4% 31.5% 5.1% Net profit margin (%) 5.9% 6.6% 0.7% Number of branches as at March 31 39 39 0% Change +/(-)Q1/20 Q1/21 Operating highlight in Q1/2021 Revenue

แบบแสดงราการข้อมูลประจำปี Notification of the change of the audit firm Date..... .........................…. Dear Secretary General of the Securities and Exchange Commission of Thailand I would like

: Overall Financial Performance Unit: million baht Jan-Dec 2018 % Jan-Dec 2019 % Change % YoY Revenue 523.23 100.0% 613.86 100.0% 90.63 17.3% Cost 285.52 54.6% 332.39 54.1% 46.87 16.4% Gross Profit 237.71

Income Others income in Q1/2019 was Bt31.8 million, increasing by 178.9%(y-o-y) since the revenue from fines from delivery of work is delayed in the operation of the contractor, the profit from the sale of

branches, customers can order our products via direct phone through sales team and sales representative as well as delivery to customer’s home. The Group had increased sales team to support such channels for

of 2019. A summary of the Company’s operating performance in the first quarter of 2020 and 2019 is shown in the following table: 1Q20 4Q19 % Change 1Q19 % Change [Amount in Baht Million] Q-o-Q Y-o-Y

performance of the Company three-month for the Quarter 1/2020 ended 31 March 2020 are as follows: change Q1/2020 Q1/2019 increase (decrease) Sales 224.5 213.9 5.0% Other income 1.9 10.8 -82.3% Cost of sales

3.46 million baht or 3.74% from sale revenue with is 0.8 million baht or 23.12% decreased came from the compact of restructuring of the organization thus the better control in delivery expenses.. 4

2,142.0 Mn and THB 2,209.0 Mn respectively, an increase of THB 67.0 Mn or 3.1%. This was mainly due to (1) the opening of new branches, (2) increased sales of delivery, (3) increased sales of raw material

seller is obliged to deliver the goods to the buyer while the buyer is obliged to make payment to the seller (physical delivery) or any party shall be paid or shall pay to the other party in the amount