Deloitte Touche Tohmatsu Jaiyos Audit ดีลอยท์ ทู้ช โธมัทสุ ไชยยศ สอบบัญชี - 4 - From the matters communicated with those charged with governance, we determine those matters that were of most significance in the audit of the consolidated and separate financial statements of the current period and are therefore the key audit matters. We describe these matters in our auditor’s report unless law or regulation precludes public disclosure about the matter or when, in extremely rare circumstances, we determine that a matter should not be communicated in our report because the adverse consequences of doing so would reasonably be expected to outweigh the public interest benefits of such communication. Mongkol Somphol Certified Public Accountant (Thailand) BANGKOK Registration No. 8444 February 8, 2022 DELOITTE TOUCHE TOHMATSU JAIYOS AUDIT CO., LTD. 291 REPORT OF THE INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS IRPC PUBLIC COMPANY LIMITED
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