(“Company”) and its subsidiaries would like to clarify the operating results of the first quarter of 2020 (ending 31 March 2020). According to the consolidated financial statements, the Company and its

21.00 34.02% Administrative expenses 35.21 32.44 2.77 8.54% Financial costs 0.45 0.02 0.43 2,150.00% Share of profit (loss) of associates (0.17) (0.17) 0 0.00% Profit before income tax expenses 42.15

1 / 2 No.IR.006/2020 28 February 2020 Re: Notification of the changes of the Profit and Loss Statement To: President Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited

คำอธิบายและการวิเคราะห์ของฝ่ายจัดการ 9 November 2018 Re: To clarify the financial statements as of 30 September 2018 To: President The Stock Exchange of Thailand WHA Corporation Public Company

Public Company Limited (the “Company”) No.7/2020 convened on 14 August 2020 has passed a resolution to certify the financial statements and the performance for the six-month period ended 30 June 2020 which

5.05 Share of Profit (Loss) from Associates (44.72) (1.13) 82.27 2.00 (126.99) (154.36) Financial Costs (18.43) (0.47) (20.40) (0.50) (1.97) (9.67) Profit before Income Taxes 194.97 4.93 443.94 10.77

compared to the same period of last year. The financial cost was in accordance with overall operations during the period. 5. Net Profit For the second quarter of year 2017, the Company’s net profit was Bt

Limited would like to clarify the operating results of the Quarter ended September 30, 2017 that net Profit of Baht 155.55 million, comparing to the same Quarter of previous year that has net profit Baht

1,754.53 Selling & Administrative Expense 118.44 120.99 Finance Costs 22.11 24.28 Net Profit 92.01 36.55 Earnings per share (Baht) 0.230 0.092 The comparison between third Quarter of 2017 and 2016 1. Sales

1,820.49 1,935.37 Selling & Administrative Expense 127.76 127.87 Finance Costs 24.29 21.34 Net Profit 32.34 (10.11) Earnings per share (Baht) 0.081 (0.025) The comparison between Second Quarter of 2019 and