Holding in Company

Standard Form TR - 1

Voting rights attached to Shares - Article 12(1) of Directive 2004/109/EC

Financial Instruments - Article 11(3) of the Commission Directive 2007/14/EC

1

Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Grafton Group plc

2

Reason for the notification (please place an X inside the appropriate box):

An acquisition or disposal of voting rights

An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An event changing the breakdown of voting rights

See Box 11 for explanation of company reorganisation which is the sole reason for making this notification (not an additional purchase or disposal of shares)

X

Other (please specify)

3

Full name of person(s) subject to notification obligation:

The Capital Group Companies, Inc.

4

Full name of shareholders(s) (if different from 3):

See Schedule A

5

Date of transaction (and date on which the threshold is crossed or reached if different):

03 September 2012

6

Date on which issuer notified:

05 September 2012

7

Threshold(s) that is/are crossed or reached:

Above 9%

8

Notified Details:

A: Voting Rights attached to shares

Class/type of shares (if possible using ISIN CODE)

Situation previous to the Triggering transaction

Resulting situation after the triggering transaction

Number of shares

Number of Voting Rights

Number of shares

Number of Voting Rights

% of Voting Rights

Direct

Direct

Indirect

Direct

Indirect

IE00B00MZ448

22,903,000

22,903,000

22,903,000

9.872%

SUBTOTAL A (based on aggregate voting rights)

22,903,000

22,903,000

22,903,000

9.872%

B: Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/Conversion period

No. of voting rights that may be acquired (if the instrument exercised/converted)

% of voting rights

TOTAL (A + B)

Number of voting rights

% of voting rights

22,903,000

9.872%

9

Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

See Schedule A

Proxy Voting

10

In case of proxy voting Number of voting rights proxy holder will cease to hold - N/A

11

Additional information

Due to a company reorganization, Capital Research and Management Company ("CRMC") and Capital Group International, Inc. ("CGII") will no longer report relevant holdings under management separately. Instead, the relevant holdings under management of CRMC and CGII will be reported in aggregate by The Capital Group Companies, Inc. ("CGC"). It is solely for this reason (and not as a result of any additional acquisition or disposal) that CGC is reporting this aggregated holding.

Done at Los Angeles, California on 4 September 2012