Blocklisting Interim Review

Name of applicant:

3i Infrastructure plc

Name of scheme:

Warrant conversion

Period of return:

From:

18 June 2010

To:

17 December 2010

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

909,500

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):

3,000,000

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

2,689,491

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

1,220,009

Name of contact:

Jackie Harper

Telephone number of contact:

020 7975 3530