Change of Company Name

NIOX Group Plc

("NIOX"  or the "Company" )

Change of Company name

NIOX Group plc (LSE: CIR) announces that further to announcements made on 10 August and 1 September 2022, the Company's change of name has become effective and the change of Tradable Instrument Display Mnemonic ("TIDM") from CIR to NIOX is expected to become effective from 5 September 2022. The ISIN and SEDOL numbers will remain unchanged. NIOX Group plc shares will continue to be traded on AIM.

Contacts

NIOX

Ian Johnson, Executive Chairman  Tel: +44 (0) 1865 405 560

Michael Roller, Chief Financial Officer

Singer Capital Markets (Nominated Adviser and Broker)

Aubrey Powell / Jen Boorer  Tel: +44 (0) 20 7496 3000

About NIOX

Our ambition is to improve the quality of life of millions of people suffering from asthma. The company is engaged in the design, development and commercialisation of medical devices for the diagnosis and management of asthma. Today our device, NIOX VERO®, is used by healthcare professionals and leading research organisations. We passionately believe in empowering everyone to manage their health at home and are developing NIOX for home use to meet this need. At present, NIOX provides products and services in around 50 countries. For more information please visit www.niox.com .