changes are described as follows: Assets Items that have significant changes Balance by Quarter Change Q3–24 Q4–23 Q3–24 VS Q4–23 (MB) (MB) % Contract assets 1,509.6 905.4 604.2 66.7 Inventories 592.0 720.5

profit or loss, trade and other receivables and contract assets and investment in associates. As at 3 1 December 2 0 2 3 and 3 0 September 2 0 2 4 , total assets were THB 6 3 4 .66 million and THB 590.52

Shareholders’ Equities Enclosure 3 4 Unit: Baht Thousand As of As of As of As of December 31, 2015 December 31, 2016 December 31, 2017 June 30, 2018 Current liabilities 617,239 632,208 492,517 449,993 Noncurrent

assets 2,845,009 3,107,232 3,092,867 3,068,095 Total Assets 3,534,764 3,681,141 3,592,136 3,545,948 Liabilities and Shareholders’ Equities Enclosure 3 4 Unit: Baht Thousand As of As of As of As of December

assets 689,755 573,909 499,269 477,853 Noncurrent assets 2,845,009 3,107,232 3,092,867 3,068,095 Total Assets 3,534,764 3,681,141 3,592,136 3,545,948 Liabilities and Shareholders’ Equities Enclosure 3 4

3,107,232 3,092,867 3,068,095 Total Assets 3,534,764 3,681,141 3,592,136 3,545,948 Liabilities and Shareholders’ Equities Enclosure 3 4 Unit: Baht Thousand As of As of As of As of December 31, 2015 December

Profit Q1/2020 vs Q1/2019YoY Q1/2020 vs Q1/2019YoY Q1/2020 vs Q1/2019YoY Management Discussion & Analysis Q1/2020 Total Assets Total Liabilities and Equities (THB million) Total Assets As of 31 Mar 2020

Statement of Financial Position February 28, 2021 August 31,2021 Change Unit : Million Baht %YoY Accounts Receivable Total Assets Total Borrowing Total Liabilities Total Equities 87,433 87,389 62,710 70,009

) Financial Position Analysis (Unit : Million Baht) December December Change 2021 2020 Amount % Change Total Assets 22,722 22,346 376.44 1.68% Total Liabilities 13,908 14,605 -697.07 -4.77% Total Equities 8,815

Receivable Total Assets Total Borrowing Total Liabilities Total Equities 87,433 87,389 62,710 70,009 17,380 91,028 90,469 65,418 70,205 20,264 4% 4% 4% 0.2% 17% ROE 19.5% 19.2% -2% ROA 4.0% 4.0% 0% D/E Ratio