Quantum Blockchain Technologies Plc - Business Update

29 October 2026

Quantum Blockchain Technologies Plc

("QBT" or "the Company")

Methods A, B & C - All Performing Live Bitcoin Mining

Quantum Blockchain Technologies plc (AIM: QBT), the AIM-listed research & development and investing company focused principally on a research and development programme within blockchain technology, provides an update on its Bitcoin mining R&D programme. All three of the Company's mining technologies continue to move towards commercialisation and are now performing Bitcoin mining via mining pools.

Highlights

· Method A is live mining on a Bitmain Antminer S9 ("S9") mining rig on a public mining pool

· Method A is now configured to operate on Bitmain's S19 and S21 mining rigs through aftermarket control boards and firmware, and the Company has engaged with three manufacturers

· Method B, in its variant based on chaos mathematics, is live mining on Bitaxe Gamma Bitcoin miners

· Method C, the Company's AI Oracle, is live mining on the Mining Development Kit ("MDK") of an ASIC manufacturer under NDA with the Company

· QBT has developed a generalised software layer through which each of the Company's three mining Methods can now implement its control strategy on the ASIC manufacturer's MDK and mining rig, at the necessary level of granularity, and both Method A and Method B will shortly be running on the ASIC manufacturer's mining rig