LONDON–(BUSINESS WIRE)– As Agent Bank, please be advised of the following rate determined on: 10/9/2026 Issue ¦ Standard Chartered Bank – Series 228 USD 30,000,000 FRN due August 2027 ISIN Number ¦ XS2523868318 ISIN Reference ¦ 252386831 Issue Nomin USD ¦ 30000000 Period ¦ 9/21/2026 to 10/19/2026 Payment Date 10/19/2026 Number of Days ¦ 28 Rate ¦ 5.20199 Denomination USD ¦ 1000 ¦ 30000000 ¦ Amount Payable per Denomination ¦ 4.05 ¦ 121500 ¦ Bank of New York Rat