Total Voting Rights

For immediate release

29 September 2017

Octagonal plc

("Octagonal" or the "Company")

TOTAL VOTING RIGHTS

The Company announces, for purposes of the Disclosure and Transparency Rules of the Financial Conduct Authority, the following:

As at the date of this announcement, the Company's issued share capital consists of 567,226,886 ordinary shares with a nominal value of 0.05p each, with voting rights ("Ordinary Shares"). The Company does not hold any Ordinary Shares in Treasury. Therefore the total number of Ordinary Shares in the Company with voting rights is 567,226,886.

The above figure of 567,226,886 Ordinary Shares may be used by shareholders in the Company as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the share capital of the Company under the Financial Conduct Authority's Disclosure and Transparency Rules.

For further information please visit www.octagonalplc.com or contact: