FY13 Remuneration Report

21 May 2013

FY13 Remuneration Report

The Directors of Sirius Minerals Plc (AIM: SXX, OTCQX: SRUXY) ("Sirius" or the "Company") today announce the award of 3,792,143 unvested ordinary shares of 0.25p each (Ordinary Shares) under the Company's Long Term Incentive Plan ("LTIP") and the award of 2,397,022 ordinary shares under the Short Term Incentive Plan ("STIP"), for Executive Directors and employees of the Company for the year ended 31 March 2013. Awards were recommended by the remuneration committee, under the structure and guidance of the Company's board approved Remuneration Policy dated 27 November 2012.

Further Disclosure with regard to Executive Directors

As part of the above awards, the following amounts were awarded and/or issued to Executive Directors, following approval from the board:

857,143 Shares have been awarded to Chris Fraser, Chief Executive Officer and Managing Director, under the Company's LTIP. These are unvested and will vest one third each on 1 April 2014, 2015 and 2016.

666,667 Shares have been awarded to Jason Murray, Chief Financial Officer and Finance Director, under the Company's STIP. These will be issued to Mr Murray, along with 1,500,000 Shares which were awarded on appointment in May 2012, that have now vested. 666,667 Shares have also been awarded to Jason Murray as part of the Company's LTIP. These are unvested and will vest one third each on 1 April 2014, 2015 and 2016.

The Directors of the Company have been notified today by Jason Murray as trustee for the Golden Pond superannuation fund ("the fund"), that the fund has purchased 2,166,667 Shares and Mr Murray has sold 2,166,667 Shares at a price of 23.0p. Mr Murray remains the beneficiary of the shares.

Following the above, Mr Fraser's beneficial holding of 114,500,750 Shares is unchanged, representing 8.50% of the Company and Mr Murray has a beneficial interest in 2,166,667 Shares, representing 0.16% of the Company.

An application has been made for 3,897,022 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 today at 8 a.m. This issuance fully satisfies the STIP awards made this year, the remainder being the historic award in relation to Mr Murray, which has now vested.

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 1,347,480,332. 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 Service 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 recognised potash deposits. Today it holds properties in the United Kingdom (North Yorkshire), the United States (North Dakota), and Australia (Queensland). 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.