FORM 6-K
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Pursuant to Rule 13a - - 16 or 15d - 16 of
The Securities and Exchange Act of 1934
For the Month of May, 2007
HANSON PLC
1 Grosvenor Place, London, SW1X 7JH, England
[Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40F.]
Form 20-F X Form 40-F
[Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.]
Yes No X
TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES
(1). Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached:
Hanson Plc
2. Reason for the notification (please state Yes/No): ( )
An acquisition or disposal of voting rights: (Yes)
An acquisition or disposal of financial instruments which may result
in the acquisition of shares already issued to which voting rights are
attached: ( No)
An event changing the breakdown of voting rights: ( No)
Other (please specify) : ( No)
3. Full name of person(s) subject to the notification obligation:
Ameriprise Financial, Inc. and its group
4. Full name of shareholder(s) (if different from 3.):
See additional information under 13.
5. Date of the transaction and date on which the threshold is crossed or reached
if different):
17/05/07
6. Date on which issuer notified:
18/05/07
7. Threshold(s) that is/are crossed or reached:
Below 5%
8. Notified details:
A: Voting rights attached to shares
Class/type of shares Situation previous to
if possible using the the Triggering
ISIN CODE transaction
Number of shares Number of voting Rights
GB0033516088 56,713,973 56,713,973
Resulting situation after the triggering transaction
Class/type of shares Number of shares Number of voting rights % of voting rights
if possible using
the ISIN CODE
Direct Direct Indirect Direct Indirect
GB0033516088 31,394,546 736,772 30,657,774 0.103 4.295
B: Financial Instruments
Resulting situation after the triggering transaction
Type of Expiration Date Exercise/Conversion Number of voting % of voting
financial Period/ Date rights that may be rights
instrument acquired if the
instrument is
exercised/
converted.
Total (A+B)
Number of voting rights % of voting rights
31,394,546 4.398%
9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable:
Ameriprise Financial, Inc., which controls the voting rights of Threadneedle
Asset Management Holdings Ltd, which controls the voting rights of
Threadneedle Asset Management Ltd, Threadneedle International Ltd and
Threadneedle Pensions Ltd.
Proxy Voting:
10. Name of the proxy holder:
N/A
11. Number of voting rights proxy holder will cease to hold:
N/A
12. Date on which proxy holder will cease to hold voting rights:
N/A
13. Additional information:
Registered Owner
Ameriprise Financial Inc A/c 4,195,771
William & Glyns (Isle of Man) Nominees Ltd A/c301780 38,143
William & Glyns (Isle of Man) Nominees Ltd A/c301778 9,786
William & Glyns (Isle of Man) Nominees Ltd A/c301781 9,252
Littledown Nominees Ltd A/c 03449 284,814
Littledown Nominees Ltd A/c 02891 10,039,793
The Bank Of New York (Nominees)Limited A/c 960028 231,287
The Bank Of New York (Nominees)Limited A/c 960053 72,626
The Bank Of New York (Nominees)Limited A/c 960253 420,734
Littledown Nominees Ltd A/c 07198 535,985
Littledown Nominees Ltd A/c 27642 195,828
Littledown Nominees Ltd A/c 10478 13,783
Littledown Nominees Ltd A/c 35822 10,427
Littledown Nominees Ltd A/c 11121 7,375
Littledown Nominees Ltd A/c 10479 33,000
Chetwynd Nominees Ltd IPB A/c TBC 35,601
State Street Bank & Trust, Boston A/c GPE1 129,305
The Bank Of New York (Nominees) Limited A/c 454362 189,494
The Bank Of New York (Nominees) Limited A/c 960039 950
The Bank Of New York (Nominees) Limited A/c 960011 18,519
The Bank Of New York (Nominees) Limited A/c 961111 4,959
Littledown Nominees Ltd A/c 07205 472,720
Littledown Nominees Ltd A/c 21688 215,567
American Express A/c XTHRF31 2,115
Littledown Nominees Ltd A/c 07207 1,351,147
BNY (OSC) Nominees Ltd A/c 219709 255,589
Littledown Nominees Ltd A/c 07196 34,585
Littledown Nominees Ltd A/c 07199 38,907
Roy Nominees A/c 104450 68,896
Mellon Nominees (UK) Ltd A/c AVOF003002 825,878
BNY (OSC) Nominees Ltd A/c 277650 281,209
Mellon Nominees (UK) Ltd A/c WWSF0004002 194,420
Chase Nominees Ltd A/c 42048 14,410
KDTC KAS Depositary Trust Company A/c 22.36.31.213. 127,148
Bank of Ireland Nominees A/c 4270483 237,325
Bank of Ireland Nominees A/c 4239914 153,369
Dexia Bil Sub A/c American Express A/c PTG 4268 55,945
Littledown Nominees Ltd A/c 18667 69,932
Littledown Nominees Ltd A/c 10469 231,424
Littledown Nominees Ltd A/c 18668 73,623
Littledown Nominees Ltd A/c 10496 524,960
Littledown Nominees Ltd A/c 10492 422,135
Littledown Nominees Ltd A/c 10491 2,115,620
Littledown Nominees Ltd A/c 10488 4,627,320
Littledown Nominees Ltd A/c 10495 577,258
Littledown Nominees Ltd A/c 10489 458,674
Threadneedle Specialist Funds ICVC A/c 34204 458,511
Littledown Nominees Ltd A/c 41408 7,627
Chase Nominees Ltd A/c 41407 46,202
Littledown Nominees Ltd A/c 30337 21,185
Littledown Nominees Ltd A/c 02642 847,204
BNY (OSC) Nominees Ltd A/c 219064 106,209
14. Contact name:
Company Secretary, Threadneedle group
15. Contact telephone number:
0207 464 5000
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorised.
HANSON PLC
By: /s/ Graham Dransfield
Date: May 21, 2007