Blocklisting Interim Review

Elementis PLC
19 September 2006


Elementis plc
19 September 2006

                                       BLOCKLISTING SIX MONTHLY RETURN

To: FSA
Date: 19 September 2006

1. Name of company

Elementis plc

2. Name of scheme

Elementis Unapproved Executive Share Option Scheme

3. Period of return:

From 16 July 2005 To 31 August 2006

4. Balance under scheme from previous return

1,206,126 ordinary shares of 5p

5. Number of shares issued / allotted under scheme during period:

1,206,126

6. Balance under scheme not yet issued / allotted at end of period

0

7. Number and class of share(s) (amount of stock / debt securities) originally
listed and the date of admission;

1,500,000 ordinary shares of 5p listed on 24 February 1998

Please confirm total number of shares in issue at the end of the period in order
for us to update our records

440,905,632

Contact for queries

Name
Kathryn Silverwood

Address
10 Albemarle Street, London W1S 4BL

Telephone
020 7408 9300

Person making the return

Name
Jennifer Murphy

Position
Company Secretary




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