Common use of BASIC EARNINGS PER SHARE Clause in Contracts

BASIC EARNINGS PER SHARE. The calculations of basic earnings per share for the three-month and nine-month periods ended September 30, 2023 and 2022 were based on the profit for the periods attributable to ordinary shareholders of the Company and the number of ordinary shares outstanding during the periods as follows : Consolidated Financial Statements Separate Financial Statements For the three-month period ended September 30, For the three-month period ended September 30, 2023 2022 2023 2022 Profit (loss) attributable to ordinary shareholders of the Company (In thousand Baht) (28,158) (37,071) (62,528) (132,606) Less Interest expenses for subordinated capital debentures (In thousand Baht) (3,327) (3,327) (3,327) (3,327) Profit (loss) used to determine basic earnings per share (In thousand Baht) (31,485) (40,398) (65,855) (135,933) Number of ordinary shares outstanding (Thousand shares) 980,000 980,000 980,000 980,000 Earnings (loss) per share (Baht per share) (0.0321) (0.0412) (0.0672) (0.1387) Consolidated Financial Statements Separate Financial Statements For the nine-month period ended September 30, For the nine-month period ended September 30, 2023 2022 2023 2022 Profit (loss) attributable to ordinary shareholders of the Company (In thousand Baht) (252,179) 74,838 (281,901) (148,457) Less Interest expenses for subordinated capital debentures (In thousand Baht) (9,873) (9,873) (9,873) (9,873) Profit (loss) used to determine basic earnings per share (In thousand Baht) (262,052) 64,965 (291,774) (158,330) Number of ordinary shares outstanding (Thousand shares) 980,000 980,000 980,000 980,000 Earnings (loss) per share (Baht per share) (0.2674) 0.0663 (0.2977) (0.1616)

BASIC EARNINGS PER SHARE. The calculations of basic earnings per share for the three-month and nine-month periods ended September 30, 2023 2018 and 2022 2017 were based on the profit for the periods attributable to ordinary shareholders of the Company and the number of ordinary shares outstanding during the periods as follows : Consolidated Financial Statements Separate Financial Statements For the three-month period ended September 30, For the three-month period ended September 30, 2023 2022 2023 2022 2018 2017 2018 2017 Profit (loss) attributable to ordinary shareholders of the Company (In thousand basic) (Thousand Baht) (28,158) (37,071) (62,528) (132,606) Less Interest expenses for subordinated capital debentures (In thousand Baht) (3,327) (3,327) (3,327) (3,327) Profit (loss) used to determine basic earnings per share (In thousand Baht) (31,485) (40,398) (65,855) (135,933) 16,987 45,424 41,591 47,879 Number of ordinary shares outstanding (Thousand shares) 980,000 980,000 980,000 980,000 Earnings (loss) per share (basic) (Baht per share) (0.0321) (0.0412) (0.0672) (0.1387) 0.02 0.05 0.04 0.05 Consolidated Financial Statements Separate Financial Statements For the nine-month period ended September 30, For the nine-month period ended September 30, 2023 2022 2023 2022 2018 2017 2018 2017 Profit (loss) attributable to ordinary shareholders of the Company (In thousand basic) ( Thousand Baht) (252,179) 74,838 (281,901) (148,457) Less Interest expenses for subordinated capital debentures (In thousand Baht) (9,873) (9,873) (9,873) (9,873) Profit (loss) used to determine basic earnings per share (In thousand Baht) (262,052) 64,965 (291,774) (158,330) 86,859 90,351 150,370 85,078 Number of ordinary shares outstanding (Thousand shares) 980,000 980,000 980,000 980,000 Earnings (loss) per share (basic) (Baht per share) (0.2674) 0.0663 (0.2977) (0.1616)0.09 0.09 0.15 0.09

BASIC EARNINGS PER SHARE. The calculations of basic earnings per share for the three-month and nine-month periods ended September 30, 2023 2019 and 2022 2018 were based on the profit for the periods attributable to ordinary shareholders of the Company and the number of ordinary shares outstanding during the periods as follows : Consolidated Financial Statements Separate Financial Statements For the three-month period ended September 30, For the three-month period ended September 30, 2023 2022 2023 2022 2019 2018 2019 2018 Profit (loss) attributable to ordinary shareholders of the Company (In thousand basic) (Thousand Baht) (28,15886,253) 16,987 (37,07158,160) (62,528) (132,606) Less Interest expenses for subordinated capital debentures (In thousand Baht) (3,327) (3,327) (3,327) (3,327) Profit (loss) used to determine basic earnings per share (In thousand Baht) (31,485) (40,398) (65,855) (135,933) 41,591 Number of ordinary shares outstanding (Thousand shares) 980,000 980,000 980,000 980,000 Earnings (loss) per share (basic) (Baht per share) (0.03210.09) 0.02 (0.04120.06) (0.0672) (0.1387) 0.04 Consolidated Financial Statements Separate Financial Statements For the nine-month period ended September 30, For the nine-month period ended September 30, 2023 2022 2023 2022 2019 2018 2019 2018 Profit (loss) attributable to ordinary shareholders of the Company (In thousand basic) ( Thousand Baht) (252,179120,337) 74,838 86,859 (281,90144,308) (148,457) Less Interest expenses for subordinated capital debentures (In thousand Baht) (9,873) (9,873) (9,873) (9,873) Profit (loss) used to determine basic earnings per share (In thousand Baht) (262,052) 64,965 (291,774) (158,330) 150,370 Number of ordinary shares outstanding (Thousand shares) 980,000 980,000 980,000 980,000 Earnings (loss) per share (basic) (Baht per share) (0.26740.12) 0.0663 0.09 (0.29770.05) (0.1616)0.15

BASIC EARNINGS PER SHARE. The calculations of basic earnings per share for the three-month and nine-month periods ended September 30, 2023 2021 and 2022 2020 were based on the profit for the periods attributable to ordinary shareholders of the Company and the number of ordinary shares outstanding during the periods as follows : Consolidated Financial Statements Separate Financial Statements For the three-month period ended September 30, For the three-month period ended September 30, 2023 2022 2023 2022 2021 2020 2021 2020 Profit (loss) attributable to ordinary shareholders of the Company (In thousand Baht) (28,158102,243) 414,809 (37,07176,359) (62,528) (132,606) 410,693 Less Interest expenses for subordinated capital debentures (In thousand Baht) (3,3274,537) (3,3274,525) (3,3274,537) (3,3274,525) Profit (loss) used to determine basic earnings per share (In thousand Baht) (31,485106,780) 410,284 (40,39880,896) (65,855) (135,933) 406,168 Number of ordinary shares outstanding (Thousand shares) 980,000 980,000 980,000 980,000 Earnings (loss) per share (Baht per share) (0.03210.109) 0.419 (0.04120.083) (0.0672) (0.1387) 0.414 Consolidated Financial Statements Separate Financial Statements For the nine-month period ended September 30, For the nine-month period ended September 30, 2023 2022 2023 2022 2021 2020 2021 2020 Profit (loss) attributable to ordinary shareholders of the Company (In thousand Baht) (252,179186,015) 74,838 431,144 (281,901226,602) (148,457) 409,466 Less Interest expenses for subordinated capital debentures (In thousand Baht) (9,87313,463) (9,87313,476) (9,87313,463) (9,87313,476) Profit (loss) used to determine basic earnings per share (In thousand Baht) (262,052199,478) 64,965 417,668 (291,774240,065) (158,330) 395,990 Number of ordinary shares outstanding (Thousand shares) 980,000 980,000 980,000 980,000 Earnings (loss) per share (Baht per share) (0.26740.204) 0.0663 0.426 (0.29770.245) 0.404 19. FINANCIAL INSTRUMENTS Financial instruments carried at fair value Fair value hierarchy The fair value measurements are categorised into different levels in the fair value hierarchy based on the inputs to valuation techniques used. The different levels are defined as follows: • Level 1: quoted prices (0.1616)unadjusted) in active markets for identical assets or liabilities that the Group can access at the measurement date. • Level 2: inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. • Level 3: unobservable inputs for the asset or liability. For disclosure purpose, the Group determines Level 2 fair values for traded debentures have been determined based on quoted selling prices from the Thai Bond Market Association that were not difference with fair value at the year end. For disclosure purposes, the Group determines Level 3 fair values for fair values of investment property is carried based on valuations by independent values. Fair value is measured by discounted cash flow projections which reflects rental income from current leases and assumptions about rental income from future leases in the light of current market conditions. The fair value also reflects any cash outflows that could be expected in respect of the property. The discount rate reflects current market assessments of the time value of money and risk adjusted. The fair value of accounts receivable, trade accounts receivable and other current accounts receivable and accounts payable is taken to approximate to the carrying value. The fair value of loans to related parties is taken to approximate the carrying value because most of these financial instruments bear interest at market rates. The fair value of long-term borrowings and lease liabilities are taken to approximate the carrying value because most of these financial instruments bear interest at market rates.