LEI: 213800ZBKL9BHSL2K459

17 September 2026

OSB GROUP PLC
(the Company)

Redemption of the remaining £17,072,000 outstanding of the £150,000,000 6.000% Fixed Rate Resetting Perpetual Subordinated Contingent Convertible Securities issued in October 2021 (ISIN: XS2391408072)
(the "Securities")

OSB GROUP PLC (the "Issuer") has today given notice to the Securityholders that it has elected to redeem all outstanding Securities, being an aggregate principal amount of £17,072,000, pursuant to Condition 8(b)(i) of the terms and conditions of the Securities (the "Conditions").

Having obtained the necessary regulatory approvals, notice of redemption has been given to Securityholders, the Trustee and the Agents in accordance with the terms and conditions of the Securities.

All outstanding Securities will be redeemed on 7 October 2026 (the "Redemption Date") at their principal amount together with accrued but unpaid interest to (but excluding) the Redemption Date.

Following redemption, the Securities will be cancelled pursuant to the Conditions. Accordingly, the listing of the Securities on the London Stock Exchange’s International Securities Market will be cancelled on, or shortly after, 8 October 2026.

Enquiries:

Notes to Editors

About OSB GROUP PLC

OSB began trading as a bank on 1 February 2011 and was admitted to the main market of the London Stock Exchange in June 2014 (OSB.L). OSB joined the FTSE 250 index in June 2015. On 4 October 2019, OSB acquired Charter Court Financial Services Group plc and its subsidiary businesses. On 30 November 2020, OSB GROUP PLC became the listed entity and holding company for the OSB Group. The Group provides specialist lending and retail savings and is authorised by the Prudential Regulation Authority, part of the Bank of England, and regulated by the Financial Conduct Authority and Prudential Regulation Authority. The Group reports under two segments, OneSavings Bank and Charter Court Financial Services.