Sirius Minerals Regulatory News (SXX)

For immediate release: 31 January 2011

SIRIUS MINERALS Plc

Total Voting Rights

For the purposes of the Disclosure and Transparency Rules of the Financial Services Authority, the Board of Sirius Minerals Plc (the "Company") is required to notify the market of the following:

As at the date of this announcement, the Company's issued share capital consists of 878,106,602 ordinary shares with a nominal value of 0.25 p each, with voting rights ("Ordinary Shares"). The Company does not hold any Ordinary Shares in Treasury.

Therefore the total number of Ordinary Shares in the Company with voting rights is 878,106,602.

The above figure of 878,106,602 Ordinary Shares 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 to their interest in, the share capital of the Company under the Financial Service Authority's Disclosure and Transparency Rules.

- ENDS -

For further information, please contact:

Website: www.siriusminerals.com