Listing Listing : Depositary Receipt (DR) DR type : Depositary Receipt Representing Interest from Underlying Foreign Securities DR Name : DR ON COSTCO WHOLESALE CORPORATION ISSUED BY KRUNG THAI BANK PUBLIC COMPANY LIMITED DR Symbol : COSTCO80 Secondary market : SET Listed date : 10-Jul-2026 Trading date : 13-Jul-2026 Trading Session : Day and Night Trading Session SEC Issuing Limit (Unit) : 3,100,000,000 Conversion Ratio (DR : Underlying) : 10,000 : 1 Offering type : Direct listing Offering Price (Baht per Unit) : 3.08 Description : DR selling price is the price calculated by the issuer based on the market price of the underlying foreign security, converted using a reference rate and exchange rate, and including the applicable administrative expenses incurred in buying foreign securities. Details of underlying Underlying Type : Common stock Underlying Symbol : COST Underlying Name : COSTCO WHOLESALE CORPORATION (COST) Underlying Exchange : The Nasdaq Stock Market (NASDAQ) Underlying Exchange (URL) : https://www.nasdaq.com/market-activity/stocks /cost Underlying Description : A wholesale and retail enterprise that offers a broad range of consumer goods through a membership-based system Remark : On the listed date, the temporary suspension of trading sign will be posted on DR and the sign will be removed on the trading date. ______________________________________________________________________

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