Exercise of Warrants

For immediate release 13 May 2014

CityFibre Infrastructure Holdings PLC

("CityFibre" and "the Company")

Exercise of Warrants

CityFibre (CFHL.L), the company that owns, builds and operates fibre optic infrastructure, announces that on 12 May 2014 it agreed to issue 338,583 new ordinary shares of one penny each (the "Warrant Shares") at a price of one penny per Warrant Share pursuant to the exercise of warrants granted to a consultant to the Company.

The Company has applied for admission of the Warrant Shares to trading on the AIM Market of the London Stock Exchange ("Admission"). It is expected that Admission will occur and that dealings in the Warrant shares will commence on 16 May 2014. The Warrant Shares will rank pari passu with the existing ordinary shares of one penny each in the capital of the Company (the "Ordinary Shares") already in issue.

Following the issue of the Warrant Shares the Company has 52,653,231 Ordinary Shares in issue and the Company holds no shares in treasury. Therefore the total number of Ordinary Shares with voting rights in the Company is 52,653,231.

The above figure of 52,653,231 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, CityFibre under the FCA's Disclosure and Transparency Rules.

For further information, please contact:

CityFibre Infrastructure Holdings plc Tel: 0845 293 0774

James Enck, Head of Investor Relations

www.cityfibre.com

finnCap (Nomad and Joint Broker) Tel: 020 7220 0500

Stuart Andrews / Christopher Raggett (Corporate Finance)

Simon Johnson (Corporate Broking)

www.finncap.com

Liberum (Joint Broker) Tel: 020 3100 2000

Steve Pearce / Richard Bootle / Steven Tredget

www.liberum.com

Buchanan Tel: 020 7466 5000

Jeremy Garcia / Fiona Henson / Gabriella Clinkard

www.buchanan.uk.com

About CityFibre

CityFibre enables gigabit connectivity through owning, building and operating fibre optic network infrastructure. It is the largest independent provider of fibre infrastructure to mid-sized cities and major towns, providing gigabit capable infrastructure for enterprise and public sector organisations, service providers, mobile network operators and businesses.

The Company owns and operates 29,000 fibre kilometres of local access networks serving 465 customer locations in 56 towns and cities in the UK, including York, Sheffield, Newcastle, Dundee, Bath, Derby and Doncaster.

CityFibre is based in London, United Kingdom, and its shares trade on the AIM Market of the London Stock Exchange (AIM: CFHL).