Elementis plc - Holding(s) in Company

Elementis PLC

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:

Schroders plc

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

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

11.9.08

6. Date on which issuer
notified:

12.9.08

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

10%-9%

8. Notified details:

A: Voting rights attached to shares Class/type of shares if possible
using the ISIN CODE

ORDINARY GB0002418548

Situation previous to the triggering transaction

Number of shares   44,271,027

Number of Voting Rights 44,271,027

Resulting situation after the triggering transaction

Number of shares                    49,171,057

Number of voting rights   Direct N/A

Number of voting rights   Indirect 44,498,934

% of voting rights     Direct       N/A

% of voting rights     Indirect     9.93%

B: 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

Total (A+B)

Number of voting rights           44,498,934

% of voting rights                     9.93%

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

Schroder Investment Management Limited 43,741,549               9.76%

Schroder Investment Management North America Limited
757,385            0.17%

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:          The shares referred to in
section 9 are held in portfolios
Managed by those firms on a discretionary basis for clients under
investment management agreements.

14. Contact name:                                      Andrea Rowe

15. Contact telephone number:                   020 7658 2521

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

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