Regulatory release: Further Operational Update 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 16 May 2013 FURTHER OPERATIONAL UPDATE Further to the announcement made on 14th May 2013, Lonmin Plc (the "Company") welcomes an overnight return to work by employees engaged in an unprotected strike action which began on Tuesday morning. Initial estimates are that 82% of workers reported for the night shift yesterday and more than 90% for the morning shift today. The situation on the ground remains delicate, however, and discussions on workers' demands continue with unions and other stakeholders. The Company will update the market as soon as it has further clarity. – ENDS – 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 Anthony Cardew/James Clark +44 20 7930 0777 /Alexandra Stoneham Sue Vey +27 72 644 9777 Brunswick - Johannesburg Itumeleng Mahabane/Cecilia de Almeida +27 11 502 7400 / +27 83 325 9169 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 Sponsor: J.P. Morgan Equities South Africa (Pty) Ltd Date: 16/05/2013 01:48:00 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.