Approvals update

18 February 2015

Sirius Minerals Plc

Approvals update

The Directors of Sirius Minerals Plc (AIM: SXX, OTCQX: SRUXY) ("Sirius" or the "Company") provide an update on the approvals process for the York Potash Project.

Further to previous announcements, the Supplementary Environmental Information ("SEI") for its mine, mineral transport system and materials handling facilities applications was submitted to the relevant local authorities yesterday. The documentation will be available on both the local authority and the Company websites in the coming days.

The Company is not expecting to have to provide any further substantive information to the authorities and looks forward to the determination of the applications in the near future. No confirmed dates have been provided yet by either authority, but the market will be updated when these are known.

For further information, please contact:

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.