REPORT OF THE INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS TO THE SHAREHOLDERS AND BOARD OF DIRECTORS PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Opinion We have audited the consolidated financial statements of PTT Global Chemical Public Company Limited and its subsidiaries (the “Group”) and the separate financial statements of PTT Global Chemical Public Company Limited (the “Company”) which comprise the consolidated and separate statements of financial position as at December 31, 2021, and the related consolidated and separate statements of profit or loss, comprehensive income, changes in shareholders’ equity and cash flows for the year then ended, and notes to the consolidated and separate financial statements, including a summary of significant accounting policies. In our opinion, the accompanying consolidated and separate financial statements present fairly, in all material respects, the financial position of PTT Global Chemical Public Company Limited and its subsidiaries and of PTT Global Chemical Public Company Limited as at December 31, 2021, and financial performance and cash flows for the year then ended in accordance with Thai Financial Reporting Standards (“TFRSs”). Basis for Opinion We conducted our audit in accordance with Thai Standards on Auditing (“TSAs”). Our responsibilities under those standards are further described in the Auditor’s Responsibilities for the Audit of the Consolidated and Separate Financial Statements section of our report. We are independent of the Group in accordance with the Federation of Accounting Professions’ Code of Ethics for Professional Accountants together with the ethical requirements that are relevant to the audit of the consolidated and separate financial statements, and we have fulfilled our other ethical responsibilities in accordance with these requirements. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our opinion. 217 BUSINESS OPERATION AND PERFORMANCE CORPORATE GOVERNANCE FINANCIAL REPORTS AND FINANCIAL STATEMENTS APPENDIX
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