World Chess Regulatory News (CHSS)

World Chess Plc

("World Chess" or the "Company" or the "Group")

Board Changes

World Chess (LSE: CHSS), a leading chess organisation that develops and operates worldchess.com, the official online gaming platform of the International Chess Federation (FIDE), announces that Neil Rafferty has resigned from the Board of Directors, effective from 11 May 2026.

Mr Rafferty has given three months' notice in accordance with his contractual obligations and will continue to fulfil his duties as Interim Chair and Director until 11 May 2026, or until a new Chairman is appointed, whichever occurs first.

Statement by the Board

The Board would like to express its sincere gratitude to Neil for his valuable contribution and dedicated service to World Chess since the Company's IPO. Neil has played an important role during a significant period in the Company's development, and his insights and commitment have been greatly appreciated.The Board thanks Neil for his service and wish him every success in his future endeavours.

Chairman SuccessionThe Company has commenced a formal process to appoint a new Chair at the earliest opportunity.

This announcement contains information which, prior to its disclosure, was inside information as stipulated under Regulation 11 of the Market Abuse (Amendment) (EU Exit) Regulations 2019/310 (as amended).

For more information, visit: www.worldchess.com or contact:

Notes to Editors

About World Chess Plc

World Chess (LSE: CHSS) is a leading chess organisation that develops and operates worldchess.com, a subscription platform with over one million users and the official online platform of the International Chess Federation (FIDE). The Company organized several World Chess Championships, including in New York and London. It organises the Armageddon Series and produces The World Chess Show, distributed across more than 50 international markets. More at worldchess.com.