Rule 8.3 - HANSON

FORM 8.3

    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
              (Rule 8.3 of the City Code on Takeovers and Mergers)


1.   KEY INFORMATION

Name of person dealing        BARCLAYS PLC
(Note 1)
Company dealt in              HANSON PLC
Class of relevant security    ORD GBP0.10
to which the dealings being
disclosed relate (Note 2)
Date of dealing               17 May 2007

2.   INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a)  Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

                           Long                      Short

                     Number       (%)          Number       (%)

(1) Relevant     34,164,079     4.79%       1,732,309     0.24%
securities
(2) Derivatives   1,642,466     0.23%         182,064     0.03%
(other than
options)
(3) Options and           0     0.00%               0     0.00%
agreements to
purchase/sell

Total            35,806,545     5.02%       1,914,373     0.27%


(b)  Interests and short positions in relevant securities of the company, other
     than the class dealt in (Note 3)

Class of                    Long                     Short
relevant
security:

                  Number         (%)         Number        (%)

(1) Relevant
securities

(2) Derivatives
(other than
options)

(3) Options and
agreements to
purchase/sell

Total


(c)  Rights to subscribe (Note 3)

Class of relevant security:   Details



3.   DEALINGS (Note 4)

(a)  Purchases and sales

Purchase/Sale Number of Securities Price per unit (GBP)
Purchase      400,000              10.8233
Purchase      7,906                10.8022
Purchase      22,637               10.9396
Purchase      832                  10.8000
Purchase      176                  10.8000
Purchase      7                    10.7900
Purchase      100,000              10.9209
Purchase      200,000              10.9352
Purchase      2,071                10.9722
Purchase      1,127                10.7950
Purchase      10,313               10.8000
Purchase      2,497                10.8022
Purchase      6,296                10.8000
Sale          211,987              11.0000
Sale          11,741               10.7777
Sale          63,664               11.0000
Sale          6,022                10.9705
Sale          136,994              11.0000
Sale          2,701                10.9300
Sale          8,359                10.9500
Sale          4,777                10.9421
Sale          910                  10.7850
Sale          4,179                10.9300
Sale          297,345              11.0000
Sale          5,401                10.9500
Sale          3,087                10.9421

(b)  Derivatives transactions (other than options)

Product    Long/Short    Number of Securities  Price Per
name                                           Unit
CFD        Short         7                     10.79
CFD        Short         10403                 10.8021
CFD        Short         22637                 10.9395
CFD        Short         2071                  10.9721
CFD        Long          11741                 10.7776
CFD        Long          6022                  10.9704


(c)  Options transactions in respect of existing securities

(i)  Writing, selling, purchasing or varying

Product name,   Writing,          Number of          Exercise  Type, e.g.      Expiry   Option money
e.g. call       selling,          securities to      price     American,       date     paid/received
option          purchasing,       which the option             European etc.            per unit (GBP)
                varying etc.      relates (GBP)


(ii) Exercising

Product name, e.g.  Number of           Exercise price per
call option         securities          unit (Note 5)



(d)  Other dealings (including new securities) (Note 4)


Nature of transaction Details           Price per unit
(Note 8)                                (if applicable)
                                        (Note 5)



4.   OTHER INFORMATION
None

Agreements, arrangements or understandings relating to options or derivatives


Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced.  If none, this should be stated.




Is a Supplemental Form 8 attached? (Note 9)                 NO


Date of disclosure                         18 May 2007
Contact name                               BARCLAYS COMPLIANCE
Telephone number                           020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)


Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk