. (Acceptance and Continuance of Client Relationships and Specific Engagements) 5. (Resources) 6. (Engagement Performance) 7. (Information and Communication) 8. (Monitoring and Remediation Process)

, conditions and procedures as specified in the notification by failing to put in place a sufficient and effective system for analyzing, reviewing and monitoring the quality of securities. SEC Act S.117

Derivative Warrants | PTTE42C2106G | DERIVATIVE CALL WARRANTS ON PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED ISSUED BY MAYBANK KIM ENG SECURITIES (THAILAND) PUBLIC COMPANY LIMITED LAST

Derivative Warrants | PTTE42C2101T | DERIVATIVE CALL WARRANTS ON PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED ISSUED BY MAYBANK KIM ENG SECURITIES (THAILAND) PUBLIC COMPANY LIMITED LAST

Derivative Warrants | PTTE42P2101T | DERIVATIVE PUT WARRANTS ON PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED ISSUED BY MAYBANK KIM ENG SECURITIES (THAILAND) PUBLIC COMPANY LIMITED LAST

Derivative Warrants | PTTE42C2004A | DERIVATIVE CALL WARRANTS ON PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED ISSUED BY MAYBANK KIM ENG SECURITIES (THAILAND) PUBLIC COMPANY LIMITED LAST

Derivative Warrants | PTTE42P2008A | DERIVATIVE PUT WARRANTS ON PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED ISSUED BY MAYBANK KIM ENG SECURITIES (THAILAND) PUBLIC COMPANY LIMITED LAST

Derivative Warrants | PTTE42C1910A | DERIVATIVE CALL WARRANTS ON PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED ISSUED BY MAYBANK KIM ENG SECURITIES (THAILAND) PUBLIC COMPANY LIMITED LAST

Derivative Warrants | PTTE42C1903A | DERIVATIVE CALL WARRANTS ON PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED ISSUED BY MAYBANK KIM ENG SECURITIES (THAILAND) PUBLIC COMPANY LIMITED LAST

Derivative Warrants | PTTE42C2001A | DERIVATIVE CALL WARRANTS ON PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED ISSUED BY MAYBANK KIM ENG SECURITIES (THAILAND) PUBLIC COMPANY LIMITED LAST