Listing Listing : Depositary Receipt (DR) DR type : Depositary Receipt Representing Interest from Underlying Foreign Securities DR Name : DR ON GIGADEVICE SEMICONDUCTOR INC. ISSUED BY KRUNG THAI BANK PUBLIC COMPANY LIMITED DR Symbol : GIGA80 Secondary market : SET Listed date : 13-Jul-2026 Trading date : 13-Jul-2026 Trading Session : Day Trading Session SEC Issuing Limit (Unit) : 500,000,000 Conversion Ratio (DR : Underlying) : 100 : 1 Offering type : Direct listing Offering Price (Baht per Unit) : 40.61 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 : 3986 Underlying Name : GIGADEVICE SEMICONDUCTOR INC. (3986) Underlying Exchange : The Stock Exchange of Hong Kong Limited (HKEX) Underlying Exchange (URL) : https://www.hkex.com.hk/Market-Data/Securitie s-Prices/Equities/Equities-Quote?sym=3986&sc_ lang=en Underlying Description : The company focused on the design and development of integrated circuits (ICs), including Flash memory, DRAM, MCUs, analog, and sensor chips. ______________________________________________________________________

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