Type of securities : Common share | Effective Date : 06/10/2023 | Close Selling Date : 11/10/2023

ประเภทหลักทรัพย์ : หุ้นสามัญ | วันที่มีผลใช้บังคับ : 06/10/2566 | วันที่ปิดการขาย : 11/10/2566

Market Supervisory Board which is SCM did not report the change in the objectives of the Initial Public Offering ("IPO") utilization from the objectives of IPO disclosed in the registration

(“the Group”) as follow: Q3-2019 Q2-2020 Q3-2020 9M-2019 9M-2020 Change THB Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Sales of goods and services 1,142.7 1,139.5 1,182.8 3.8% 3.5% 3,399.0 3,438.0 1.1

subsidiaries (“the Group”) as follow: Q2-2019 Q1-2020 Q2-2020 6M-2019 6M-2020 Change THB Mn THB Mn THB Mn %QoQ %YoY THB Mn THB Mn %YoY Sales of goods and services 1,145.8 1,115.7 1,139.5 2.1% (0.5%) 2,256.3

failure to comply with the rules, conditions and procedures as specified in the notification of the Capital Market Supervisory Board which is SCM did not report the change in the objectives of the Initial

COMPANY LIMITED Management’s Discussion and Analysis 6M’19 6M’20 change Q2’19 Q1’20 Q2’20 change change Btmn Btmn y-on-y Btmn Btmn Btmn y-on-y q-on-q Sales and service income 21,123 22,466 6.4% 10,866

exchange rate of receivable under finance lease agreement, gain(loss) on forward contracts, insurance claim and gain from business acquisition. Change QoQ Consolidated financial statements Change YoY 2

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% of NNP respectively. ABBREVIATION & OUR PROJECTSFINANCIAL PERFORMANCE FINANCIAL POSITION PROGRESS OF PROJECTS UNDER CONSTRUCTION EXECUTIVE SUMMARY EXECUTIVE SUMMARY 2 9M’2017 9M’2018 % change Q2’2018