Director Share Issue

30 May 2014

Sirius Minerals Plc

Director Share Issue

The Directors of Sirius Minerals Plc (AIM: SXX, OTCQX: SRUXY) ("Sirius" or the "Company") today announce the issue of 900,000 ordinary shares of 0.25p each to Jason Murray, Chief Financial Officer and Finance Director, which were awarded on his appointment in May 2012 and that have now vested.

The Directors of the Company have also been notified by Jason Murray, as trustee for the Golden Pond superannuation fund ("the fund"), that the fund has purchased 1,117,381 ordinary shares and Mr Murray has sold 1,117,381 ordinary shares at 11.62p each. Mr Murray remains the beneficiary of the shares.

Following the above, Mr Murray has a beneficial interest in 3,825,714 ordinary shares, representing 0.20% of the Company's issued share capital. Mr Murray also has a beneficial interest in 270,833 warrants issued by the Company on 14 March 2014.

An application has been made for 900,000 new ordinary shares, which will rank pari passu with the Company's existing ordinary shares, to be admitted to trading on AIM and trading in such shares is expected to commence at 8am on 2 June 2014.

Following the issue of the ordinary shares, the total number of shares in issue and the total number of ordinary shares in the Company with voting rights will be 1,874,150,098. This figure may be used by shareholders in the Company as the denominator for the calculation by which they will determine if they are required to notify their interest in, or a change of interest in, the share capital of the Company under the Financial Conduct Authority's Disclosure and Transparency Rules.

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About Sirius Minerals Plc

Sirius Minerals is a globally diversified potash development company. Its primary focus is to bring on stream major potash mining facilities through the acquisition and development of projects overlying recognized potash deposits. Today it holds properties in the United Kingdom (North Yorkshire) and the United States (North Dakota). Incorporated in 2003, Sirius Minerals' shares are traded on the London Stock Exchange's AIM market. Its shares are also traded in the United States on the OTCQX through a sponsored ADR facility. Further information on the Company can be found at www.siriusminerals.com.