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               21 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     34,421,292     4.82%       1,614,467     0.23%
securities
(2) Derivatives   1,534,399     0.21%          95,950     0.01%
(other than
options)
(3) Options and           0     0.00%               0     0.00%
agreements to
purchase/sell

Total            35,955,691     5.04%       1,710,417     0.24%


(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      1,040                10.7550
Purchase      36,815               10.7767
Purchase      1,459                10.7550
Purchase      3,328                10.7550
Purchase      462                  10.7550
Purchase      8,884                10.7550
Purchase      350                  10.7587
Purchase      3,172                10.7550
Purchase      46,133               10.7550
Purchase      150,000              10.7708
Sale          46,133               10.7550
Sale          550                  10.7563
Sale          203                  10.7550
Sale          700                  10.7563
Sale          700                  10.7563
Sale          500                  10.7663
Sale          1,100                10.7664
Sale          31,859               10.7587
Sale          1,040                10.7550

(b)  Derivatives transactions (other than options)

Product    Long/Short    Number of Securities  Price Per
name                                           Unit
CFD        Short         36815                 10.7767
CFD        Long          31859                 10.7586


(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                         22 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