Notification of major interest in shares Lonmin Plc (Incorporated in England and Wales) (Registered in the Republic of South Africa under registration number 1969/000015/10) JSE code: LON Issuer Code: LOLMI & ISIN: GB0031192486 ("Lonmin") 25 August 2015 TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi 1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are Lonmin plc attached: ii 2 Reason for the notification (please tick the appropriate box or boxes): An acquisition or disposal of voting rights An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments An event changing the breakdown of voting rights Other (please specify): 3. Full name of person(s) subject to the The Capital Group Companies, Inc. notification obligation: iii 4. Full name of shareholder(s) See Schedule A (if different from 3.):iv 5. Date of the transaction and date on which the threshold is crossed or 21 August 2015 reached: v 6. Date on which issuer notified: 24 August 2015 7. Threshold(s) that is/are crossed or Above 8% reached: vi, vii 8. Notified details: A: Voting rights attached to shares viii, ix Class/type of Situation previous Resulting situation after the triggering transaction shares to the triggering transaction x if possible using Number Number Number Number of voting % of voting rights the ISIN CODE of of of shares rights Shares Voting xi xii Direct Direct Indirect Direct Indirect Rights Ordinary (GB0031192486) 45,158,428 45,158,428 47,103,171 8.0654 B: Qualifying Financial Instruments Resulting situation after the triggering transaction Type of financial Expiration Exercise/ Number of voting % of voting xiii xiv instrument date Conversion Period rights that may be rights acquired if the instrument is exercised/ converted. n/a C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi Resulting situation after the triggering transaction xix, Type of financial Exercise Expiration Exercise/ Number of voting rights % of voting rights xvii xx instrument price date Conversion instrument refers to xviii period Nominal Delta n/a Total (A+B+C) Number of voting rights Percentage of voting rights 47,103,171 8.0654% 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: xxi See Schedule A Proxy Voting: 10. Name of the proxy holder: 11. Number of voting rights proxy holder will cease to hold: 12. Date on which proxy holder will cease to hold voting rights: 13. Additional information: 14. Contact name: John Morrison, Lonmin Plc 15. Contact telephone number: +44 20 7201 6044 Sponsor: J.P. Morgan Equities South Africa (Pty) Ltd Schedule A As of 21 August 2015 Lonmin plc No of shares Percent of outstanding The Capital Group Companies, Inc. (“CG”) holdings 47,103,171 8.065% Holdings by CG Management Companies and Funds: • Capital Guardian Trust Company 18,485,278 3.165% • Capital International Limited 201,000 0.034% • Capital International SÁrl 13,142,007 2.250% • Capital International, Inc 15,274,886 2.615% Date: 25/08/2015 02:30:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE'). The JSE does not, whether expressly, tacitly or implicitly, represent, warrant or in any way guarantee the truth, accuracy or completeness of the information published on SENS. The JSE, their officers, employees and agents accept no liability for (or in respect of) any direct, indirect, incidental or consequential loss or damage of any kind or nature, howsoever arising, from the use of SENS or the use of, or reliance on, information disseminated through SENS.