Sirius Exploration PLC
LSE : SXX

September 13, 2010 07:08 ET

Carbon Capture Research Update

For immediate release: 13 September 2010
                                                         
                                              Sirius Exploration Plc
                                            ("Sirius" or the "Company")

                                          Carbon Capture Research Update
                                                         
     New study demonstrates how salt and potash mines could help to prevent CO2 from entering the atmosphere.

Key points:

* Potash and nickel processing can be enhanced to provide a long-term storage solution for CO2 emissions;
* for potash processing, the energy requirements can be met by the heat already present in the salt brine; and
* the output includes clean water that can be recycled back to the mine, improving the overall water
  consumption of the mine.

Further to the announcement of 12 November 2009, Sirius Exploration Plc (AIM: SXX, OTC: SRUXY), and the University
of  Queensland are pleased to announce the successful completion of a nine month proof-of-concept study  exploring
an innovative approach to carbon sequestration using salt solutions. This newly developed method converts salt and
CO2  into  sodium  carbonates (e.g. bi-carbonate of soda) which can be safely stored  in  empty  underground  mine
caverns preventing that CO2 from entering the atmosphere.

Sirius  and  the  University of Queensland designed this technology to work in conjunction  with  potash  solution
mining. Besides providing a long-term storage solution for CO2, an attractive feature of this new process is  that
it  finds a use for the sodium rich salt solution generated from the solution mining of potash, providing  both  a
storage solution for sodium and clean water that can be re-used back down into the cavern.

In  addition to potash brines, a variant on the process using magnesium silicate ore, common to nickel mining, was
explored and demonstrated.

Further details cannot be released at this stage pending a review by the parties of possible patent applications.

The  CO2  research activity forms an integral part of the Company's ongoing efforts to identify second  generation
commercial applications that can be deployed concurrently or after the potash mining activity has concluded on its
properties.

Chris Catlow commented:
        "We  are highly encouraged by these laboratory results and we await with interest the findings of the next
        phase of research to better understand the potential commercial viability of the process."

The  technical content of this release has been reviewed by the author of the report Dr Karen M. Steel, School  of
Chemical Engineering, The University of Queensland.

- ENDS -

For further information, please contact:
                                                                   
Sirius Exploration Plc                                             Tel: +971 504 524 994
Richard Poulden

Beaumont Cornish Limited (Nomad)                                   
Roland Cornish                                                     Tel: +44 (0) 207 628 3396
                                                                   
Daniel Stewart & Company plc (Broker)                              
Christopher Theis / Emma Earl                                      Tel: + 44 (0) 20 7776 6550
                                                                   
Gth Media Relations                                                
Toby Hall/Christian Pickel                                         Tel: + 44 (0) 20 3103 3903/3902

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