Sirius Minerals Plc
("Sirius" or the "Company")

Macquarie Appointed Nomad and Joint Broker

The Directors of Sirius Minerals Plc (AIM: SXX, OTCQX: SRUXY), the globally diversified potash development group, are pleased to announce that the Company has appointed Macquarie Capital (Europe) Limited ("Macquarie") to act as its Nominated Adviser and joint broker with immediate effect.

Chris Fraser, Managing Director and CEO of Sirius, said:

"We are delighted to appoint Macquarie as our Nomad and Joint Broker. They are one of the world's leading global resources banks with strong research and distribution capabilities in the mining and agricultural sectors. The combination of Liberum and Macquarie as Joint Brokers give the company access to market leading expertise to advance Sirius towards our goal of becoming a leading producer in the global potash industry."

Liberum note today: 26p target price
Sirius Minerals aims to become a global force in the potash industry through the development of its flagship York Potash project in North Yorkshire, England. 97km of historical drill data indicates 3.3-6.0bn tonnes of high grade polyhalite (19-24% K2SO4), while ongoing drilling is set to deliver a JORC resource in Q112.
The completion of a Scoping Study (expected end of 2011) will mark a key step in confirming early indications of asset potential to support a large scale (3Mtpa), low cost, premium priced potash operation. At the helm is a world class big financing management team headed by CEO Chris Fraser (former Head of Metals and Mining, Citigroup Australia) and Chairman Chris Catlow (Former CFO of Fortescue Metals Group
We see material upside to our base case EV valuation of $390m (0.26/shr, +109 premium to current price) as management begin to wake a sleeping potash giant.

RNS Number : 2407Q

Sirius Minerals Plc

17 October 2011

For immediate release: 0700hrs, 17 October 2011

Sirius Minerals Plc

("Sirius" or the "Company")

Expansion of Management Team

The Directors of Sirius Minerals Plc (AIM: SXX, OTCQX: SRUXY), the globally diversified potash development group, are pleased to announce the appointment of Mr Graham Clarke to the position of Operations Director.

Graham Clarke is the current Managing Director of Cleveland Potash Limited, which operates the Boulby Mine in North Yorkshire, the UK's only potash mine. He has spent his entire 26 year career at Boulby. During this time he has served in many roles and has been Managing Director since 2004. This has given him unique insights into all aspects of operating a large-scale potash production facility. In particular, Graham has been instrumental in the commissioning of the Boulby Mine's polyhalite extraction project. Boulby is the only operational polyhalite mine in the world today.

Graham will be one of the key leadership team delivering the York Potash Project. He will also have broader involvement in the development and execution of the Company's global development strategies. He will formally join Sirius in early April 2012 once his notice period with Cleveland Potash has expired.

Chris Fraser, Managing Director and CEO of Sirius, said:

"I am absolutely delighted to announce Graham's appointment to the Company. There is no person better qualified to help us continue the rapid progress of the York Potash Project and to fulfil our goal of becoming one of the world's leading potash producers. Not only is he the only person to successfully commission and oversee a new polyhalite mine, but he lives and breathes for the local area and its wellbeing."

Graham Clarke commented:

"I have been very impressed with the strategy and approach of Sirius and in particular the sense of urgency and innovation ingrained in the Company's culture. The York Potash Project is a fantastic project and the opportunity to join Sirius and help deliver its large-scale production strategy is an opportunity I could not turn down.

"I understand not only the challenges involved but also the huge benefits the York Potash Project can bring to the area and the UK. The operational experience I have of mine development, the local environment and health and safety issues will enable me to help accelerate the York Potash Project towards production.

"I leave Boulby after many happy years and with great gratitude to all the hard working members of staff. There is a strong management team in place to step into my shoes and I look forward to the possibility of working together in the future on key areas of potential cooperation."

Preliminary Coring Results.

81.8 metres (true thickness) of total potash mineralisation across all three seams with the hole being terminated while still in polyhalite mineralisation;

All three potash seams successfully cored;

65 metres of polyhalite (potassium sulphate) mineralisation within the Fordon evaporites including two zones containing a total of a 19 metres (true thickness) of massive higher grade polyhalite;

7.8 metres of the Boulby potassium chloride seam;

9 metres of the Sneaton potassium chloride seam; and

~100% core recovery.


The Directors of Sirius Minerals Plc (AIM: SXX, OTCQX: SRUXY), the globally diversified potash development group, are pleased to announce the completion of coring at its first borehole at the York Potash Project.

Chris Fraser, Managing Director and CEO of Sirius Minerals, said:

"Although preliminary, these are fantastic results for Sirius. The confirmation of all three seams in exceptional thicknesses is a validation of the world-class status of the project. We are all looking forward to the completion of the chemical assays to confirm the grade of these potash zones. Of particular excitement is the 19 metre thickness of massive polyhalite. This compares very favourably to the 5 metre thickness assumption used in the previously announced Exploration Target.

"The first hole we have drilled in the York Potash Project has delivered one of the world's single thickest potash intersections ever reported."

The market certainly likes the news, up 2 points with 35 million shares traded

Yes and excellent volume.

sp Looking good...now 160% up ...will keep holding..alot more to come.. (imho)

checked in half mine may this morn bank rest later today if rise continues - next results 3/4 weeks which should be v good - back in again b4 then if i sell all today

well done to all

yeeeeeeeeeeeeeeeehaaaaaaaaaaaaaaaaaaaaaa

Certainly on a tear this morning!

what a great monday - massive volumes - yeeeeeeeeeeeeeeeehaaaaaaaaaaaaaaaaaaaaaaaaa

wow volumes increasing!!! good day ahead not even 9am yet!! gla

heading for 20p + easily

ah profit taking (gl) has delayed the 20p - but volumes still nice and high!!

.

nice 1 hc

Wireline Logging Update

Wireline logging of SM1 successfully completed
Natural Gamma Ray Spectrometry confirms high polyhalite content in the two key massive polyhalite beds

The Directors of Sirius Minerals Plc (AIM: SXX, OTCQX: SRUXY), the globally diversified potash development group, are pleased to announce the completion of the wireline logging of its first borehole ("SM1") at the York Potash Project.

Following the completion of coring of SM1, announced on 27 October 2011, Schlumberger conducted a series of geophysical wireline logging tests on the hole. These tests included natural gamma ray spectrometry, density, neutron and sonic logging to assist in mineral identification. Spectral gamma ray tools resolve the natural gamma ray spectrum into its different components, including potassium; and so can be used to estimate approximate potassium contents in the borehole.

The Upper and Lower beds of massive polyhalite identified in the 27 October 2011 announcement, representing a combined 19 metres (true thickness) of massive polyhalite, gave average gamma readings across the whole of these intersections attributable to potassium that equates to polyhalite grades in excess of 80%. Within these thick mineralised zones there were certain zones of significantly higher than average grades apparent. These estimations of polyhalite grade align with the field assessment of the massive zones as having low levels of visibly identifiable halite and anhydrite inclusions.

It is very important to note however that full chemical and mineralogical analysis is required to confirm the grades and continuity of the potash mineralisation in the recovered core. These are expected in approximately four weeks, as advised in the announcement on 27 October 2011.

another rns with more fantastic news - yeeeeeeeeeeeeehaaaaaaaaaaaaaaaa

extract / this is very valuable info:

31 October 2011



Sirius Minerals Plc



("Sirius" or the "Company")

Wireline Logging Update


Wireline logging of SM1 successfully completed

Natural Gamma Ray Spectrometry confirms high polyhalite content in the two key massive polyhalite beds

up again i note - volumes flying - and not surprised!!!! and its not in some war torn country in the middle of no where - yeeeeeeeeeeeeeeeeeehaaaaaaaaaaaaaaaaaaaa

volumes very high 4.5m + last 45 mins - best of the day and latest recent rns releases - kerrrrrrrrrchinnnnnnnnnnnnnnggggggggggggggggggggggggggggggggggg

and lunch time rush due shortly