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               15 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     34,547,205     4.84%      1,765,705       0.25%
securities
(2) Derivatives   1,570,443     0.22%        223,239       0.03%
(other than
options)
(3) Options and           0     0.00%              0       0.00%
agreements to
purchase/sell

Total            36,117,648     5.06%      1,988,944       0.28%


(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      45,899               10.9745
Purchase      150,000              11.0550
Purchase      8,449                11.0156
Purchase      100,000              10.9953
Purchase      27,892               11.0700
Purchase      1,884                11.0785
Purchase      234                  Transfer
Purchase      1,700                10.9450
Purchase      1,224                Transfer
Purchase      450,000              10.9580
Purchase      142                  Transfer
Purchase      442                  11.0700
Purchase      13,637               11.0722
Purchase      4,561                11.0700
Purchase      4,118                11.0700
Purchase      33,433               11.0193
Purchase      300                  10.9800
Purchase      200,000              11.0010
Purchase      24                   Transfer
Sale          60,380               11.0100
Sale          1,318                11.0600
Sale          3,607                10.9335
Sale          140,584              10.9509
Sale          1,500                10.9354
Sale          7,467                11.0069
Sale          819                  10.9100
Sale          1,487                11.0700
Sale          58,800               11.0000
Sale          5,599                10.9335
Sale          500,000              10.9835
Sale          223,573              11.0100
Sale          34,200               11.0000
Sale          4,118                11.0700
Sale          13,985               11.0660
Sale          2,795                10.9335
Sale          351,051              10.9150
Sale          150,000              11.0550
Sale          1,196                10.9335
Sale          787                  11.0354


(b)  Derivatives transactions (other than options)

Product    Long/Short    Number of Securities  Price Per
name                                           Unit
CFD        Short         38447                 10.9441
CFD        Short         1700                  10.945
CFD        Short         300                   10.98
CFD        Short         8449                  11.0155
CFD        Short         33433                 11.0193
CFD        Short         13637                 11.0722
CFD        Short         1884                  11.0784
CFD        Long          819                   10.91
CFD        Long          140584                10.9509
CFD        Long          7467                  11.0069
CFD        Long          13985                 11.066

(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                         16 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