Publication of Circular

THIS ANNOUNCEMENT (AND THE INFORMATION CONTAINED HEREIN) IS NOT FOR RELEASE, PUBLICATION, DISTRIBUTION OR FORWARDING, DIRECTLY OR INDIRECTLY, IN WHOLE OR IN PART, IN, INTO OR FROM AUSTRALIA, CANADA, JAPAN, THE UNITED STATES OF AMERICA OR ANY OTHER JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OF SUCH JURISDICTION. PLEASE SEE THE IMPORTANT NOTICES AT THE END OF THIS ANNOUNCEMENT.

2 November 2015

For immediate release

Publication of Circular

A circular (the "Circular") in connection with Lonmin Plc's ("Lonmin" or the "Company") proposed rights issue (the "Proposed Rights Issue") is being posted today to the Company's shareholders.

The Circular contains a notice convening a general meeting of the Company's shareholders (the "General Meeting"). The General Meeting will be held at 9:30 a.m. on 19 November 2015 at the Lincoln Centre, 18 Lincoln's Inn Fields, London WC2A 3ED, United Kingdom.

The procedures and timings for shareholders to vote on the resolutions proposed at the General Meeting are set out in the notes to the notice of the General Meeting in the Circular. The Circular will shortly be available for viewing, subject to regulatory restrictions, on the Lonmin website at www.lonmin.com. A copy of the Circular will also be submitted to the National Storage Mechanism and will shortly be available for inspection at: www.morningstar.co.uk/uk/nsm.

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IMPORTANT NOTICES

This announcement has been issued by, and is the sole responsibility of, Lonmin.

This announcement is not an offer to sell or a solicitation of any offer to buy the securities of Lonmin in Australia, Canada, Japan, the United States of America or in any other jurisdiction where such offer or sale would be unlawful or to any person to whom it would be unlawful to make such offer or solicitation.

Greenhill & Co. International LLP ("Greenhill"), which is authorised and regulated in the United Kingdom by the Financial Conduct Authority, is acting as financial adviser and sole sponsor for Lonmin and no one else in connection with the Proposed Rights Issue and the Resolutions and will not regard any other person (whether or not a recipient of this announcement) as a client in relation to either the Proposed Rights Issue or the Resolutions and will not be responsible to anyone other than Lonmin for providing the protections afforded to its clients nor for giving advice in connection with either the Proposed Rights Issue, the Resolutions or any other transaction, arrangement or matter referred to in this announcement.

Apart from the responsibilities and liabilities, if any, which may be imposed on Greenhill by the Financial Services and Markets Act 2000 (as amended) or by the regulatory regime established under it, neither Greenhill nor any of its affiliates accepts any responsibility whatsoever for the contents of the information contained in this announcement or for any other statement made or purported to be made by or on behalf of Greenhill or any of its affiliates in connection with the Company, the Proposed Rights Issue or the Resolutions. To the fullest extent permitted by law, Greenhill and its affiliates accordingly disclaim all and any liability, whether arising in tort, contract or otherwise (save as referred to above) in respect of any statements or other information contained in this announcement and no representation or warranty, express or implied, is made by Greenhill or any of its affiliates as to the accuracy, completeness or sufficiency of the information contained in this announcement.

The securities of Lonmin have not been and will not be registered under the US Securities Act of 1933 (the "US Securities Act"), or with any securities regulatory authority of any State or other jurisdiction of the United States, and may not be offered, sold, resold, pledged, taken up, exercised, renounced, or otherwise delivered, distributed or transferred, directly or indirectly, into or within the United States except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the US Securities Act and in compliance with any applicable securities laws of any State or other jurisdiction of the United States. No public offering of securities of Lonmin is being made in the United States.

Neither the content of the Company's website nor any website accessible by hyperlinks on the Company's website is incorporated in, or forms part of, this announcement.