-1- AIT (VP-SEC) 014E/2024 May 9, 2024 Subject: Management's Discussion and Analysis of Operating Results for Q1-2024 To: The President of the Stock Exchange of Thailand Summary of Operations Q1-2024

แบบแสดงรายการข้อมูลสำหรับการเสนอขายหลักทรัพย์ (แบบ 69-1) 1 No. WHAUP-CS018/2562 November 08, 2019 Attention: Managing Director – Stock Exchange of Thailand Subject: Report of Financial Results for

Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No BYD Mr. Luchai Pukananan Acquisition Stock 9.705 0.5209

Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No W Mr. Kritsada Pruitipat Disposition Stock 5.1649 0.2795

Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No SABUY Miss Paranya Rudjanapornpajee Acquisition Stock 4.9625

Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No IP Mr. Trinnawat Thanitnithiphan Disposition Stock 40.4852

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No GSC Mr VASANT CHAWLA Disposition Stock 10.6 8.6 2 13/01

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No NATION Miss Kanchanarath Wongphan Disposition Stock

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No KC Mr. Jtupote Vichanchit Disposition Stock 5.0006

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No BCP SOCIAL SECURITY OFFICE Disposition Stock 15.0384