Approvals update - First decision date

15 April 2015

Sirius Minerals Plc

Approvals update - First decision date

The Directors of Sirius Minerals Plc (AIM: SXX, OTCQX: SRUXY) ("Sirius" or the "Company") announce that a committee meeting date of Thursday, 23 April 2015 has been set for the determination of its mine and mineral transport system ("MTS") planning application by Redcar and Cleveland Borough Council ("RCBC").

RCBC has today published its committee report, which includes a recommendation for approval by the planning officers. The final decision by RCBC will be made by the members of the RCBC Regulatory Committee at its meeting on Thursday, 23 April 2015. The Regulatory Committee report has been published on the RCBC website (https://www.redcar-cleveland.gov.uk/cabpap14-15.nsf/allbykey/C6071FDEA84D968380257E2800468357?opendocument).

This application is a 'straddling application' that was submitted for the mine and MTS. The other straddling application for the mine and MTS is to be determined by the North York Moors National Park Authority.

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About Sirius Minerals Plc

Sirius Minerals is a potash development company with properties in the United Kingdom (North Yorkshire) and the United States (North Dakota). Its primary focus is the development of the York Potash Project which has the world's largest and highest grade deposit of polyhalite, a multi-nutrient form of potash containing potassium, sulphur, magnesium and calcium. 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.