UNOFFICIAL TRANSLATION Certification and Consensus of Audit Firm Date ........ Month ....................... Year ............... Dear Secretary-General of the Office of the Securities and Exchange

(UNOFFICIAL TRANSLATION) (Updated 2015) 4. Certification of Leader of Audit Firm Date ........ Month ............ Year.......... To: Secretary-General Office of the Securities and Exchange Commission

แบบแสดงราการข้อมูลประจำปี UNOFFICIAL TRANSLATION Notification of the Change of Audit Firm Date ....... Month ............ Year ....…. Dear Secretary-General of the Office of the Securities and

แบบแสดงราการข้อมูลประจำปี (UNOFFICIAL TRANSLATION) (Revision 2015) 8. Audit Firm Profile and Details Name of Audit Firm................................. For the year ending

แบบแสดงราการข้อมูลประจำปี (UNOFFICIAL TRANSLATION) (Updated 2015) 5. Submission Letter of Evidentiary Documentation of Audit Firm Date ........ Month ............. Year.......... To: Secretary

……................ working for ……..(NAME OF AUDIT FIRM)......, wish to apply for an approval of the SEC Office to be an auditor of businesses under the Securities and Exchange Act B.E. 2535 (1992) and the Trust for

robust Fit Fast Firm project (OSP’s cost saving program), which continued to drive further margin improvement through product formulation optimization, lower key raw material prices, higher supply chain

emergency declared in all areas of the Kingdom of Thailand dated 25 March 2020, and according to Section 9 of the Emergency Decree on Public Administration in Emergency Situation, B.E. 2548 (No.1) and Bangkok

down in April during fully lockdown, however the market recovered in June with the growth of 18.0%, partly driven by additional supply of C-Vitt from capacity expansion. COVID-19 situation accelerated

an opinion on audit reports; 2.2 being affiliated with an audit firm that has an audit quality control system and the required number of personnel; 2.3 meeting other requirements, e.x., not having