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               31 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     40,584,233     5.69%       1,277,536     0.18%
securities
(2) Derivatives   1,187,841     0.17%          37,667     0.01%
(other than
options)
(3) Options and           0     0.00%               0     0.00%
agreements to
purchase/sell

Total            41,772,074     5.85%       1,315,203     0.18%


(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      185,000              10.7700
Purchase      4,846                10.7550
Purchase      1,755                10.7502
Purchase      70,332               10.7766
Purchase      1,176                10.7722
Purchase      430                  10.7550
Purchase      6,000,000            10.7550
Purchase      964                  10.7550
Sale          964                  10.7550
Sale          4,000                10.7778
Sale          60,455               10.7624
Sale          7,403                10.7550
Sale          430                  10.7550
Sale          1,241                10.7598
Sale          93,000               10.7624
Sale          69,660               10.7573
Sale          2,781                10.7598
Sale          85,713               10.7624

(b)  Derivatives transactions (other than options)

Product    Long/Short    Number of Securities  Price Per
name                                           Unit
CFD        Short         35060                 10.7599
CFD        Short         1176                  10.7721
CFD        Short         70332                 10.7765
CFD        Long          69660                 10.7572
CFD        Long          4000                  10.7778



(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                         01 June 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