Blocklisting Interim Review

Senior plc 2005 Long Term Incentive Plan

Period of return:

From:

15/07/2010

To:

14/01/2011

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

0

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):

136,270

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

136,270

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

0

Senior plc Executive Share Option Plan

Period of return:

From:

15/07/2010

To:

14/01/2011

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

2,561,365

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):

0

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

2,561,365

Senior plc Savings-Related Share Option Scheme

Period of return:

From:

15/07/2010

To:

14/01/2011

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

1,302,732

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):

192,789

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

1,109,943

Name of contact:

Andrew Bodenham

Telephone number of contact:

01923 714745