LONMIN PLC - Update on Arbitration Process

Update on Arbitration Process

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")


REGULATORY RELEASE

Update on Arbitration Process


Lonmin Plc (“the Company”) agreed this morning (Wednesday 26 June 2013) to postpone scheduled
arbitration with the Association of Mineworkers and Construction Union (AMCU) over the ongoing
union recognition dispute at AMCU’s request.

The Company agreed to an AMCU request to delay the talks in order to allow the process of
engagement, led by The Deputy President of The Republic of South Africa (which involves business,
government and labour), to take its course. Lonmin welcomes and supports this initiative.

At this morning’s meeting, the presiding Commissioner joined the National Union of Mineworkers,
United Association of South Africa and Solidarity as interested parties to the arbitration proceedings,
which will re-commence on 29 July 2013, again under the auspices of The Commission for
Conciliation, Mediation and Arbitration (CCMA).

Lonmin remains fully committed to concluding a new union recognition agreement with AMCU as
the majority union. The Company is striving to reach an agreement which is in the best interests of
all of its employees and has made reasonable offers in discussions with AMCU in an attempt to
achieve this. Lonmin believes that an agreement can be reached through continued negotiations.

Full details on Lonmin’s labour relations position are available on a fact sheet on the Company’s
website. Lonmin will update the market again when appropriate.


26 June 2013

ENQUIRIES

Investors / Analysts:
Lonmin
Tanya Chikanza (Head of Investor Relations)         +27 11 218 8358 /
                                                    +44 20 7201 6007
Ruli Diseko (Investor Relations Manager)            +27 11 218 8300


Media:
Cardew Group
James Clark                                         +44 20 7930 0777
Sue Vey                                             +27 72 644 9777
Brunswick - Johannesburg
Itumeleng Mahabane / Tim Schultz                   +27 11 502 7400 /
                                                   +27 82 309 2496

Sponsor:
J.P. Morgan Equities South Africa (Pty) Ltd

Notes to editors

Lonmin, which is listed on both the London Stock Exchange and the Johannesburg Stock Exchange, is
one of the world's largest primary producers of PGMs. These metals are essential for many industrial
applications, especially catalytic converters for internal combustion engine emissions, as well as
their widespread use in jewellery.

Lonmin's operations are situated in the Bushveld Complex in South Africa, where nearly 80% of
known global PGM resources are found.

The Company creates value for shareholders through mining, refining and marketing PGMs and has a
vertically integrated operational structure - from mine to market. Lonmin's mining operations
extract ore from which the Process Division produces refined PGMs for delivery to customers.
Underpinning the operations is the Shared Services function which provides high quality levels of
support and infrastructure across the operations.

For further information please visit our website: http://www.lonmin.com

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