Investor reminding

Subject                                  : Reminding of tender offer's closing 
date
Listed company subject to tender offer   : SINO-THAI ENGINEERING AND 
CONSTRUCTION PUBLIC CO.,LTD. (STEC)
Offeror                                  :
Stecon Group Public Company Limited (STECON)
Closing date of tender offer             : 21-Oct-2024
Purchasing date on the SET that can not  : 18-Oct-2024
offer to the offeror in time from
Tender offer period                      : From 19-Aug-2024 to 21-Oct-2024
Remark                                   :
STEC's shareholders who accept the tender offer will be paid with the newly 
issued shares of Stecon Group Public Company Limited (STECON), with the exchange
rate of 1 ordinary share of STEC per 1 ordinary share of STECON. October 17,
2024 is the last purchasing day of STECON's ordinary shares on the SET and can
offer to STECON. In addition, SET will announce the listing date of STECON's
newly issued ordinary shares on the same date of the announcement of delisting
STEC's securities.
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