Holding(s) in Company

Elementis plc ("the Company")

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:

Elementis plc

2. Reason for the notification

An acquisition or disposal of voting rights

3. Full name of person(s) subject to the notification obligation:

AXA S.A. and its group of companies

4. Full name of shareholder(s) (if different from 3):

N/A

5. Date of the transaction (and date on which the threshold is
crossed or reached if different):

13 December 2009

6. Date on which issuer
notified:

14 December 2009

7. Threshold(s) that is/are crossed or
reached:

Decrease in total holdings from 5.22% to 4.998%

8. Notified details:


A: Voting rights attached to shares

Class/type of shares                        241854

Situation previous to the Resulting situation after the triggering
transaction

Number of shares                          23,394,304

Number of Voting Rights              23,394,304

Resulting situation after the triggering transaction

Number of shares Direct                    223,240

Number of voting rights   Direct        223,240

Number of voting rights   Indirect   22,173,559

% of voting rights          Direct                      0.05

% of voting rights          Indirect                    4.95


B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/ Conversion Period/ Date

Number of voting rights that may be acquired if the instrument is
exercised/ converted

% of voting rights


C: Financial Instruments with similar economic effect to Qualifying
Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date

Exercise/ Conversion Period

Number of voting rights instrument refers to

% of voting rights

Nominal

Delta


Total (A+B+C)

Number of voting rights           22,396,799

% of voting rights                               5.00%

9. Chain of controlled undertakings through which the voting rights
and/or the financial instruments are effectively held, if applicable:

Name of Company/Fund   Number of Shares      % of issued share
capital


AXA IM UK                          223,240                  0.04982
Direct

AXA IM UK                          22,129,559               4.93828
Indirect

AXA Rosenberg                         44,000                0.00982
Indirect

Total Direct                                      223,240   0.04982

Total Indirect                                 22,173,559   4.94810

Total                                          23,396,799   4.99791



Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

14. Contact name:                               Kyere Tabiri

15. Contact telephone number:           020 7003 1510

This notification is made in accordance with Rule 5.8.12 R(1) of the
Disclosure and Transparency Rules sourcebook.

Wai Wong
Company Secretary
020 7408 9303

15 December 2009

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