Annual Information Update

Elementis plc - Annual Information Update In accordance with Prospectus Rule 5.2.1, Elementis plc (the "Company") sets out below a summary of the information which has been published or made available to the public during the period from 1 April 2009 to 31 March 2010. This information is provided as required under the above rule and for no other purpose. The information contained below or referred to may be out of date. 1. Regulatory announcements made via a Regulatory Information Service, which can also be viewed from the Company's website at: www.elementis.com/investors, are as follows: Date Announcement heading 31/03/2010 Elementis PLC - Annual Information Update 31/03/2010 Elementis PLC Total voting rights < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=342070522822243&ir_client_id=1325> 30/03/2010 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=342070522813323&ir_client_id=1325> 18/03/2010 Elementis PLC - Annual Financial Report 2009 and Notice of Meeting 2010 26/02/2010 Elementis PLC Total voting rights < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=342070522822243&ir_client_id=1325> 23/02/2010 Elementis PLC - Preliminary Results < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=342066227880490&ir_client_id=1325> 11/02/2010 Elementis PLC Block listing Interim Review < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=342070522813347&ir_client_id=1325> 11/02/2010 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=342070522813323&ir_client_id=1325> 29/01/2010 Elementis PLC Total voting rights < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=342070522806649&ir_client_id=1325> 21/01/2010 Elementis PLC - Price Monitoring Extension < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=330469816164785&ir_client_id=1325> 31/12/2009 Elementis PLC - Total Voting Rights < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=323125422077689&ir_client_id=1325> 21/12/2009 Elementis PLC - Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=315695128661997&ir_client_id=1325> 15/12/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=315699423611677&ir_client_id=1325> 03/12/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=294402828287308&ir_client_id=1325> 30/11/2009 Elementis PLC Total voting rights < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=294402828284301&ir_client_id=1325> 11/11/2009 Elementis PLC Elementis plc - EU communication on heat stabilisers investigation < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=294402828273517&ir_client_id=1325> 05/11/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=267937239817945&ir_client_id=1325> 30/10/2009 Elementis PLC Total voting rights < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=267937239814541&ir_client_id=1325> 30/10/2009 Elementis PLC Interim Management Statement < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=267937239814172&ir_client_id=1325> 29/10/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=267937239813987&ir_client_id=1325> 29/10/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=267937239813473&ir_client_id=1325> 23/10/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=267937239810462&ir_client_id=1325> 15/10/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=267937239805457&ir_client_id=1325> 09/10/2009 Elementis PLC - Schroders TR1 < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=268830593017176&ir_client_id=1325> 07/10/2009 Elementis PLC - Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=268830593011863&ir_client_id=1325> 30/09/2009 Elementis PLC Total voting rights < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=267937239795970&ir_client_id=1325> 10/09/2009 Elementis PLC Director/PDMR Shareholding < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=251496104987694&ir_client_id=1325> 28/08/2009 Elementis PLC Director/PDMR Shareholding < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=234492329462691&ir_client_id=1325> 28/08/2009 Elementis PLC Total voting rights < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=234492329462519&ir_client_id=1325> 19/08/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=208666691118119&ir_client_id=1325> 13/08/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=208666691115761&ir_client_id=1325> 05/08/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=208666691112709&ir_client_id=1325> 05/08/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=208666691112701&ir_client_id=1325> 03/08/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=208666691111604&ir_client_id=1325> 03/08/2009 Elementis PLC Block listing Interim Review < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=208666691111431&ir_client_id=1325> 03/08/2009 Elementis PLC - Interim Results 2009 < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=208621593964947&ir_client_id=1325> 31/07/2009 Elementis PLC Total voting rights < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=208666691110975&ir_client_id=1325> 30/06/2009 Elementis PLC Total voting rights < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=181524645282627&ir_client_id=1325> 26/06/2009 Elementis PLC Elementis plc - pre-close trading statement < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=175082194340390&ir_client_id=1325> 16/06/2009 Elementis PLC Holding(s) in Company < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=170733539950935&ir_client_id=1325> 29/05/2009 Elementis PLC Total voting rights < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=155464931214409&ir_client_id=1325> 30/04/2009 Elementis PLC Director/PDMR Shareholding < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=138832670360403&ir_client_id=1325> 30/04/2009 Elementis PLC Total voting rights < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=138832670360258&ir_client_id=1325> 29/04/2009 Elementis PLC Elementis Chromium - Outcome of Strategic review < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=138832670359597&ir_client_id=1325> 20/04/2009 Elementis PLC Annual Financial Report < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=131619272787278&ir_client_id=1325> 16/04/2009 Elementis PLC Elementis plc ("the Company") - Results of 2009 AGM < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=131619272786161&ir_client_id=1325> 16/04/2009 Elementis PLC AGM / Interim Management Statement < http://miranda.hemscott.com/servlet/HsPublic?context=ir.access&ir_ option=RNS_NEWS&item=131619272785950&ir_client_id=1325> 2. Documents filed at Companies House (copies of which are also obtainable from Companies House - for further information visitwww.companieshouse.gov.uk < http://www.companieshouse.gov.uk/>): Date   Type of document   Document description 17/03/2010   SH01   Statement of capital 17/03/2010   CH01   Director's change of particulars 17/03/2010   CH01   Director's change of particulars 17/03/2010   CH01   Director's change of particulars 16/03/2010   CH01   Director's change of particulars 16/03/2010   CH01   Director's change of particulars 16/03/2010   CH01   Director's change of particulars 16/03/2010   CH01   Director's change of particulars 16/03/2010   CH01   Director's change of particulars 16/03/2010   CH03   Secretary's change of particulars 10/03/2010   SH01   Statement of capital 14/01/2010   AR01   Annual return 02/11/2009   SH01   Statement of capital 02/11/2009   SH01   Statement of capital 23/10/2009   SH01   Statement of capital 25/09/2009   88(2)   Return of allotment 25/09/2009   88(2)   Return of allotment 27/08/2009   88(2)   Return of allotment 24/06/2009   88(2)   Return of allotment 24/06/2009   88(2)   Return of allotment 27/04/2009   MEM/ARTS   Memorandum and Articles of Association 27/04/2009   RES01   Special resolutions 24/04/2009   ARA   Annual report and accounts 2008 3. Documents published or sent to shareholders or filed with the UK Listing Authority document viewing facility: Date   Document description 19 March 2010   Annual report and accounts for the year ended 31 December 2009, Chairman's letter, Notice of 2010 AGM with explanatory notes and proxy form. 22 May 2009   Flyer to all shareholders warning them to be on their guard against unsolicited calls or correspondence concerning investment matters implying a connection with the Company. Copies of all of the above documents may be obtainable from the Company Secretary at the Company's registered office at 10 Albemarle Street, London W1S 4HH. Wai Wong Company Secretary 020 7408 9303 [HUG#1398966]

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Elementis (ELM)
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