SET adds new listed securities : AMBA03's units to be traded on October 15, 2026

Listing Listing : Depositary Receipt (DR) DR type : Depositary Receipt Representing Interest from Underlying Foreign Securities DR Name : DR ON AMBARELLA, INC. (AMBA) ISSUED BY PI SECURITIES PUBLIC COMPANY LIMITED DR Symbol : AMBA03 Secondary market : SET Listed date : 12-Oct-2026 Trading date : 15-Oct-2026 Trading Session : Day and Night Trading Session SEC Issuing Limit (Unit) : 10,000,000,000 Conversion Ratio (DR : Underlying) : 1,000 : 1 Offering type : Direct listing Offering Price (Baht per Unit) : 2.24 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 : AMBA Underlying Name : AMBARELLA, INC. (AMBA) Underlying Exchange : The Nasdaq Stock Market (NASDAQ) Underlying Exchange (URL) : https://www.nasdaq.com/market-activity/stocks /amba Underlying Description : A semiconductor design company, focusing on low-power system-on-chip, high-definition and Ultra HD video compression. 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. ______________________________________________________________________