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

commercial operation, it will grant IRPC-CP total project (including Phase 1 and 2) to have capacity of 240 megawatts of electricity and 170 to 300 ton per hour of steam. The project has 2 PPAs with EGAT (Firm

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

of IRPC Clean Power Phase 2 (IRPC-CP Phase 2) in November 2017, in which GPSC holds 51% equity, has expanded the electricity generating capacity allowing the company to increase the volume of

the decrease in selling and administrative expenses but also the better performance of GPSC’s power plants especially IRPC Clean Power Phase 1 whose main customer returned to operate as normal from the

key drivers for the Company’s aggressive growth. During 2015-2017, the Company has been building foundation and preparing in all areas for the Company’s future growth. Those years are the first phase