invest in assets of the infrastructure business that is a greenfield project, a step-by-step operation plan, 4 starting from construction to completion of the construction, as well as the management and

-1- AIT (VP-SEC) 003E/2023 16 February 2023 Subject: Management's Discussion and Analysis of Operating Results for the year 2022 and Q4-2022 To: The President of the Stock Exchange of Thailand

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No TAKUNI Mr. Kanatuch Woointranon Acquisition Stock

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No VARO MA ALUMINUM CORPORATION Acquisition Stock 0

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No MAJOR GIC PRIVATE LIMITED Disposition Stock 5.0311

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No DEMCO NUSASIRI PUBLIC COMPANY LIMITED Acquisition Stock

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No GCAP Mr. Asa Sarasas Acquisition Stock 0 16.0682

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No MK Mr. Prateep Tangmatitham Disposition Stock 13.0236

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No LDC Mr. Visnu Skulpichetrat Disposition Stock 6.7129

Stock 4.448 0.0447 4.4033 08/08/2022 5.0257 0.0447 4.9809   246020142208-1 DITTO Mr. Sataporn Ngamruengphong Acquisition Stock 4.9925 0.5868 5.5793 23/03/2022 4.9925 0.5868 5.5793   246017552203-1 DITTO