List of securities which fulfilled the market surveillance criteria

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List of securities which fulfilled the market surveillance criteria

Level 1 : Cash Balance  
Security	Symbol	Start date	End date
K. W. METAL WORK PUBLIC COMPANY LIMITED	KWM	28-June-2021	06-August-2021
PLANET COMMUNICATIONS ASIA PUBLIC COMPANY LIMITED	PLANET	28-June-2021	06-August-2021
PROEN CORP PUBLIC COMPANY LIMITED	PROEN	28-June-2021	06-August-2021
POWER SOLUTION TECHNOLOGIES PUBLIC COMPANY LIMITED	PSTC	28-June-2021	06-August-2021
SILICON CRAFT TECHNOLOGY PUBLIC COMPANY LIMITED	SICT	28-June-2021	06-August-2021
Extended Period
-	-	-	-

Level 2 : Excluded from credit limit and Cash Balance
Security	Symbol	Start date	End date
-	-	-	-
Extended Period
AEC SECURITIES PUBLIC COMPANY LIMITED	AEC	28-June-2021	16-July-2021
Warrant of AEC SECURITIES PUBLIC COMPANY LIMITED No. 6	AEC-W6	28-June-2021	16-July-2021

Level 3 : Prohibit Net settlement, Excluded from credit limit and Cash Balance
Security	Symbol	Start date	End date
-	-	-	-
Extended Period
-	-	-	-


Remark:
1. Cash balance means each member must ensure that its customers pay the full amount in cash prior to trading.
2. Excluded from credit limit means the member must not use the security as collateral in the calculation of the customer s credit line in all types of account.
3. Prohibit Net Settlement means the member must not offset the trading value of buy amount and sell amount of a certain security on a given day. (The amount received from sale of the particular
security will be credited back on the following day.)

Please note that the main factors used as criteria for the restricted securities above are the turnover ratio, the trading value and the price not corresponding with the fundamental factors such as
P/E ratio, etc.
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