Block listing Interim Review

Name of applicant:

PENNON GROUP PLC

Name of scheme:

PENNON GROUP SHARESAVE SCHEME

Period of return:

From:

01/02/16

To:

31/07/16

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

77,193

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):

696,143

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

33,837

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

739,499

Name of applicant:

PENNON GROUP PLC

Name of scheme:

PENNON GROUP EXECUTIVE SHARE OPTION SCHEME

Period of return:

From:

01/02/16

To:

31/07/16

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

NIL

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):

39,120

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

NIL

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

39,120

Name of contact:

K Senior - Assistant Company Secretary

Telephone number of contact:

01392 443060