System1 Group PLC (AIM: SYS1)

("System1", or "the Company", or "the Group")

30^th March 2021

Change in Executive Job Titles

System1 Group plc, the advertising effectiveness agency, (AIM: SYS1) announces that, in line with the continued evolution of the Company, John Kearon, previously Chief Executive Officer, has today assumed the title of 'Founder and Executive President' and Stefan Barden, previously Chief Operating Officer, the title of 'Chief Executive Officer'.

Their internal responsibilities are unaffected, with John leading the Company direction, product development and external facing parts of the business, and Stefan leading the Company's organisation, technical development and operational parts of the business.  No board changes are expected to arise as a result of this development. Stefan will remain an executive director rather than reverting to the purely advisory role indicated last year.

Graham Blashill, Chairman commented:

'The change in titles is intended to reflect current roles and responsibilities more accurately and ensure continuity of leadership within System1 as we continue to hire more top talent into our already strong leadership team. The announcement prepares the ground for the appointment to the executive team of a Chief Operating Officer, reporting to Stefan Barden, who will take on some of the operational responsibility that Stefan assumed at the start of the Covid-19 pandemic.'

For further information, please contact:

The Company can be found at www.system1group.com.

This announcement contains inside information for the purposes of article 7 of the Market Abuse Regulation (EU) 596/2014 as amended by regulation 11 of the Market Abuse (Amendment) (EU Exit) Regulations 2019/310. With the publication of this announcement, this information is now considered to be in the public domain.