Holding(s) in Company

Elementis PLC 24 April 2008 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: Prudential plc group of companies 4. Full name of shareholder(s) (if different from 3): See attached schedule below 5. Date of the transaction (and date on which the threshold is crossed or reached if different): 22 April 2008 6. Date on which issuer notified: 24 April 2008 7. Threshold(s) that is/are crossed or reached: See item 13 8. Notified details: A: Voting rights attached to shares Class/type of shares if possible using the ISIN CODE GB0002418548 Situation previous to the Resulting situation after the triggering transaction Number of shares 24,086,326 Number of Voting Rights 24,086,326 Resulting situation after the triggering transaction Number of shares 25,886,326 Number of voting rights Direct 25,886,326 Number of voting rights Indirect % of voting rights Direct 5.79% % of voting rights Indirect B: Financial Instruments Resulting situation after the triggering transaction Type of financial instrument - N/A Expiration date - N/A Exercise/ Conversion Period/ Date - N/A Number of voting rights that may be acquired if the instrument is exercised/ converted. N/A % of voting rights - N/A Total (A+B) Number of voting rights 25,886,326 % of voting rights 5.79% 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: Prudential plc (parent Company) M&G Group Limited (wholly owned subsidiary of Prudential plc) M&G Limited (wholly owned subsidiary of M&G Group Limited) M&G Investment Management Limited (wholly owned subsidiary of M&G Limited) M&G Securities Limited (wholly owned subsidiary of M&G Limited) The Prudential Assurance Company Limited (wholly owned subsidiary of Prudential plc) 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: M&G Group Limited (wholly owned subsidiary of Prudential plc), M&G Limited (wholly owned subsidiary of M&G Group Limited) and M&G Investment Management Limited (wholly owned subsidiary of M&G Limited) have moved to a 5% notifiable interest triggering this notification. 14. Contact name: Dipesh Varsani M&G Investment Management Limited 15. Contact telephone number: 020 7548 3261 Schedule: Notifiable position for Elementis plc as at 22 April 2008. Percentage holdings are calculated using an issued share capital of 446,546,769 ORD GBP0.05 shares Prudential plc 25,886,326 5.79% total notifiable interest Registered Holder JP MORGAN NOMINEES 2,830,205 NORTRUST NOMINEE LTD A/C MHA01 1,500,000 NORTRUST NOMINEE LTD A/C MHF01 102,217 NORTRUST NOMINEE LTD A/C MKD01 5,000,000 NORTRUST NOMINEE LTD A/C MKM01 2,000,000 NORTRUST NOMS LTD 80,000 NORTRUST NOMS LTD A/C CRI01 3,000,000 NORTRUST NOMS LTD A/C PUQ01 2,200,000 PRUCLT HSBC GIS NOM(UK) PAC AC 7,870,000 PRUCLT HSBC GIS NOM(UK) PPL AC 1,303,904 M&G Group Limited 23,056,121 5.16% Registered Holder NORTRUST NOMINEE LTD A/C MHA01 1,500,000 NORTRUST NOMINEE LTD A/C MHF01 102,217 NORTRUST NOMINEE LTD A/C MKD01 5,000,000 NORTRUST NOMINEE LTD A/C MKM01 2,000,000 NORTRUST NOMS LTD 80,000 NORTRUST NOMS LTD A/C CRI01 3,000,000 NORTRUST NOMS LTD A/C PUQ01 2,200,000 PRUCLT HSBC GIS NOM(UK) PAC AC 7,870,000 PRUCLT HSBC GIS NOM(UK) PPL AC 1,303,904 M&G Investment Management Limited 22,953,904 5.14% Registered Holder NORTRUST NOMINEE LTD A/C MHA01 1,500,000 NORTRUST NOMINEE LTD A/C MKD01 5,000,000 NORTRUST NOMINEE LTD A/C MKM01 2,000,000 NORTRUST NOMS LTD 80,000 NORTRUST NOMS LTD A/C CRI01 3,000,000 NORTRUST NOMS LTD A/C PUQ01 2,200,000 PRUCLT HSBC GIS NOM(UK) PAC AC 7,870,000 PRUCLT HSBC GIS NOM(UK) PPL AC 1,303,904 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 This information is provided by RNS The company news service from the London Stock Exchange

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Elementis (ELM)
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