9 November 2022

STM Group Plc

("STM", the "Company" or the "Group")

Change of Auditor

Following a competitive tender process overseen by the Group Audit & Risk Committee, the Company announces the resignation of Deloitte LLP as auditor and the appointment, with immediate effect, of Grant Thornton as auditor for the financial year ending 31 December 2022. Grant Thornton's re-appointment for the subsequent financial year will be subject to approval by shareholders at the next Annual General Meeting of the Company to be held in 2023.

The Audit & Risk Committee decided to undertake a formal audit tender process following the end of the last financial period, which represented the fifth set of financial statements audited by Deloitte LLP. Deloitte LLP has deposited with the Company a statement confirming that there are no matters to be brought to the attention of the Company's members or creditors.

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Notes to editors:

The external audit will be managed by Grant Thornton Ireland, utilising its international network of member firms.

STM is a multi-jurisdictional financial services group traded on AIM, a market operated by the London Stock Exchange. The Group specialises in the administration of client assets in relation to retirement, estate and succession planning and wealth structuring.

Today, the Group has operations in the UK, Gibraltar, Malta, Australia and Spain. STM has developed a range of pension products for UK nationals and internationally domiciled clients and has two Gibraltar life assurance companies which provide life insurance bonds - wrappers in which a variety of investments, including investment funds, can be held.

STM's growth strategy is focused on both organic initiatives and strategic acquisitions.

Further information on STM Group can be found at www.stmgroupplc.com