CIRCULAR AND NOTICE OF GENERAL MEETING

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, IN OR INTO ANY RESTRICTED JURISDICTIONS OR ANY OTHER JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OF SUCH JURISDICTION.

FOR IMMEDIATE RELEASE

13 December 2013

Kazakhmys PLC ("Kazakhmys" or the "Company")

SHAREHOLDER CIRCULAR AND NOTICE OF GENERAL MEETING

SUPPLEMENTARY PROSPECTUS

Further to the Company's announcement made on 9 December 2013 relating to the proposed sale of the remaining 50 per cent. of the issued share capital of Ekibastuz GRES-1 LLP and 100 per cent. of the issued share capital of Kazhydrotechenergo LLP to JSC Samruk-Energo (the "Transaction"), Kazakhmys announces that the Shareholder Circular including Notice of General Meeting regarding the Transaction is being posted to shareholders today.

The General Meeting will be held at the offices of Linklaters LLP, One Silk Street, London EC2Y 8HQ, United Kingdom at 9.00 a.m. (UK time) on 7 January 2014.

In accordance with LR 9.6.1 of the UK Listing Authority, Kazakhmys has submitted the following documents to the National Storage Mechanism which will shortly be available for inspection at www.hemscott.com/nsm.do:

- the Shareholder Circular including Notice of General Meeting; and

- Form of Proxy relating to the General Meeting.

The Shareholder Circular including the Notice of General Meeting is available at www.kazakhmys.com

In addition, following the announcement of the Transaction, Kazakhmys announces that a supplementary prospectus (the "Second Supplementary Prospectus"), which supplements the disclosure contained in the prospectus dated 7 August 2013 in connection with the ENRC Takeover Offer, as supplemented by a supplementary prospectus published on 22 August 2013 (the "Original Prospectus"), has today been approved by the FCA. 

Accordingly, the Second Supplementary Prospectus should be read in conjunction with the Original Prospectus and is available at www.kazakhmys.com

The Second Supplementary Prospectus has been submitted to the National Storage Mechanism and will shortly be available for inspection at www.hemscott.com/nsm.do. The Second Supplementary Prospectus is also available for inspection at the registered office of the Company, 6th Floor, Cardinal Place, 100 Victoria Street, London SW1E 5JL, United Kingdom.

For further information please contact:

KazakhmysJohn Smelt Corporate Communications Tel: + 44 (0)20 7901 7882Robert Welch Company Secretary Tel: + 44 (0)20 7901 7831

College HillDavid Simonson Tel: + 44 (0)20 7457 2031Anca Spiridon Tel: + 44 (0)20 7457 2842

REGISTERED OFFICE

6th Floor, Cardinal Place, 100 Victoria Street, London SW1E 5JL, United Kingdom.

This announcement is not intended to, and does not constitute, or form part of, an offer to sell, purchase or exchange or the solicitation of an offer to sell, purchase or exchange any securities or the solicitation of any vote or approval in any jurisdiction. This announcement does not constitute a prospectus or a prospectus equivalent document. Shareholders of Kazakhmys are advised to read carefully the formal documentation relating to the Transaction once it has been despatched. The proposals relating to the Transaction will be made solely through the Shareholder Circular, which will contain details of how to vote with respect to the Transaction.