Total Voting Rights

24 November 2017

Horizon Discovery Group plc 

Total Voting Rights

In accordance with Disclosure and Transparency Rule 5.6.1 Horizon Discovery Group plc (the "Company") advises that:

As at 24 November 2017, the Company's issued share capital consisted of 149,086,601 ordinary shares of 1p each with voting rights. The Company does not hold any ordinary shares in Treasury.

The total number of voting rights in the Company is therefore 149,086,601.

The above figure (149,086,601) may be used by shareholders 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, Horizon Discovery Group plc under the FCA's Disclosure and Transparency Rules.

For further information, please contact:

Horizon Discovery Group plc

Chris Claxton, VP Investor Relations

Tel: +44 (0) 1223 655 580

Numis Securities Limited (Broker and NOMAD)

Michael Meade / Freddie Barnfield

Tel: +44 (0) 207 260 1000

Consilium Strategic Communications (Financial Media and Investor Relations)

Mary-Jane Elliott / Matthew Neal / Melissa Gardiner

Tel: +44 (0) 20 3709 5701

Email: [email protected]