Rollover of REPO

The term of the REPO under which Professor Gardin is to repurchase 5,000,000 ordinary shares of 0.25p each in the Company (“Ordinary Shares”) has been extended to 30 June 2025.

The repurchase price for the 5,000,000 Ordinary Shares has been amended from 3.483p to 3.568p per share (representing a 5% yearly interest rate on the initial purchase price of 3p). All other terms of the REPO remain unchanged.

In addition to the 5,000,000 Ordinary Shares which are the subject of the REPO, Professor Gardin is currently the beneficial owner of further 29,284,149 Ordinary Shares. The 29,284,149 remaining shares will represent the 2.00% of the Company’s total issued share capital on admission to trading of the Ordinary Shares on AIM issued pursuant to the placing as announced on 23 January 2025.

Quantum Blockchain Technologies Plc

Francesco Gardin, CEO and Executive Chairman +39 335 296573

SP Angel Corporate Finance (Nominated Adviser & Broker) Jeff Keating +44 (0)20 3470 0470

Leander (Financial PR)

Christian Taylor-Wilkinson +44 (0) 7795 168 157

• Name: Francesco Gardin
• Reason for the notification
• Position/status: CEO and Executive Chairman
• Initial notification/Amendment: Initial notification
• Name: Quantum Blockchain Technologies Plc
• LEI: 213800FC5DEC582CRZ89
• Description of the financial instrument, type of instrument: Identification code: Ordinary shares of 0.25p each ISIN: GB00B50P5B53
• Nature of the transaction: Extension of expiry date of repurchase over 5,000,000 Ordinary Shares.
• Price(s) and volume(s): Price(s) Volume(s) 3.568p 5,000,000
• Aggregated information: Aggregated volume: Price: Single transaction as in 4 c) above Price(s) Volume(s) 3.568 5,000,000
• Date of the transaction: 31 December 2024
• Place of the transaction: Outside of a trading venue