Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Kazakhmys PLC

2. Reason for the notification (Yes/No)

An acquisition or disposal of voting rights: (No)

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached: (No)

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments: (No)

An event changing the breakdown of voting rights: (No)

Other (please specify): Disclosure following a change in total voting rights as a result of the Share Repurchase by Kazakhmys PLC in connection with the ENRC Takeover Offer

3. Full name of person(s) subject to the notification obligation:

Oleg Novachuk

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

Vidacos Nominees Limited A/C BJB, Lynchwood Nominees Limited

A/C 2006420 and Euroclear Nominees Limited A/C EOC01

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

8 November 2013

6. Date on which issuer notified:

11 November 2013

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

7%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares (if possible using the ISIN CODE):

GB00B0HZPV38

Situation previous to the triggering transaction

Number of shares: 34,923,423

Number of voting rights: 34,923,423

Resulting situation after the triggering transaction

Number of shares (direct): 34,923,423

Number of voting rights (direct): Nil

Number of voting rights (indirect): 34,923,423

% of voting rights (direct): Nil

% of voting rights (indirect): 7.82%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument: N/A

Expiration date: N/A

Exercise/conversion period: N/A

Number of voting rights that may be acquired if the instrument is

exercised/converted: N/A

% of voting rights: N/A

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument: N/A

Exercise price: N/A

Expiration date: N/A

Exercise/conversion period: N/A

Number of voting rights instrument refers to: N/A

% of voting rights (nominal): N/A

% of voting rights (delta): N/A

Total (A+B+C)

Number of voting rights: 34,923,423

Percentage of voting rights: 7.82%

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

Vidacos Nominees Limited A/C BJB, Lynchwood Nominees Limited

A/C 2006420 and Euroclear Nominees Limited A/C EOC01 hold shares in the capacity as nominees on behalf of Harper Finance Limited and Kinton Trade Limited

Oleg Novachuk holds a 100% interest in both Harper Finance Limited and Kinton Trade Limited

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:

Disclosure following a change in total voting rights as a result of the Share Repurchase by Kazakhmys PLC in connection with the ENRC Takeover Offer

14. Contact name:

Robert Welch, Company Secretary

15. Contact telephone number:

020 7901 7831