Blocklisting Interim Review

Name of applicant:

Hydrogen Group plc

Name of scheme:

Hydrogen Enterprise Management Incentive 2007

Period of return:

From:

6 Jan 2012

To:

8 July 2012

Balance of unallotted securities under scheme(s) from previous return:

177,103

Plus:  The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for):

0

Less:  Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G):

4,095

Equals:  Balance under scheme(s) not yet issued/allotted at end of period:

173,008

Number and Class of Securities originally admitted and the date of admission

200,000 ordinary shares of 1 pence each admitted on 8 July 2010

Name of contact:

Madeleine Scrafton

Telephone number of contact:

0207 090 7737