Sirius Minerals Regulatory News (SXX)

THIS ANNOUNCEMENT AND THE INFORMATION CONTAINED HEREIN IS RESTRICTED AND NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN OR INTO THE UNITED STATES, ANY EXCLUDED TERRITORY OR ANY OTHER JURISDICTION IN WHICH THE RELEASE, PUBLICATION OR DISTRIBUTION WOULD BE UNLAWFUL.

This announcement is for information purposes only and is not a prospectus and not an offer of securities for sale in any jurisdiction, including in the United States, Australia, Canada, Japan and South Africa.

This announcement should be read in its entirety. In particular, you should read and understand the information provided in the "Important Notice" section.

28 November 2016

Sirius Minerals Plc

Admission of New Ordinary Shares

Sirius Minerals Plc (the "Company") previously announced on 2 November 2016 the details of a proposed Firm Placing and Placing and Open Offer to raise gross proceeds of £370 million (approximately £352 million, net of expenses), in connection with its Stage 1 financing requirements to begin the construction of its North Yorkshire polyhalite project. On 3 November 2016, it announced the results of the Firm Placing and the Placing, and on 24 November 2016, it announced the results of the Open Offer.

Capitalised terms not otherwise defined in the text of this announcement have the meanings given in the Company's announcement of 2 November 2016.

Further to the announcements previously made by the Company in connection with the Firm Placing and Placing and Open Offer, the Company confirms that 1,850,895,290 New Ordinary Shares were admitted to trading on AIM at 8.00 am today.

In accordance with the requirements of the FCA's Disclosure Guidance and Transparency Rules 5.6.1AR and 5.6.2G, the Company confirms that the Enlarged Share Capital of the Company following Admission is 4,164,514,405 Ordinary Shares in aggregate, each with equal voting rights. No shares are held in treasury. The above figure may be used by shareholders (and others with notification obligations) as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, Sirius Minerals Plc under the FCA's Disclosure Guidance and Transparency Rules.

This announcement is released by Sirius Minerals Plc and contains inside information for the purposes of Article 7 of the Market Abuse Regulation (EU) 596/2014 (MAR), encompassing information relating to the Firm Placing and Placing and Open Offer and the Stage 1 Financing described above, and is disclosed in accordance with the Company's obligations under Article 17 of MAR.

For the purposes of MAR and Article 2 of Commission Implementing Regulation (EU) 2016/1055, this announcement is being made on behalf of the Company by Tristan Pottas, Investor Relations Manager.

For further information, please contact:

About Sirius Minerals Plc

Sirius Minerals Plc is a fertilizer development company focused on the development of its North Yorkshire polyhalite project, located in North Yorkshire, United Kingdom. It believes the Project represents the world's largest high-grade known deposit of polyhalite, a multi-nutrient form of potash containing potassium, sulphur, magnesium and calcium. Incorporated in 2003, Sirius Minerals Plc's shares are traded on the London Stock Exchange's AIM market. Further information on the Company can be found at: www.siriusminerals.com.

Important notice

Forward-looking statements

This announcement contains forward-looking statements. None of the Company, the Directors, the Joint Bookrunners or the Co-Lead Managers undertake any obligation nor do they intend to revise or update any document unless required to do so by applicable law, the Prospectus Rules, the Disclosure Requirements or the Transparency Rules.

This announcement and the information contained in it is restricted and is not for release, publication or distribution, directly or indirectly, in whole or in part, in, into or from the United States (including its territories and possessions, any state of the United States and the District of Columbia, collectively the "United States") or any Excluded Territory or any other jurisdiction where to do so might constitute a violation of local securities laws or regulations. The information in this announcement may not be forwarded or distributed to any other person and may not be reproduced in any manner whatsoever. Any forwarding, distribution, reproduction, or disclosure of this information in whole or in part is unauthorised. Failure to comply with this directive may result in a violation of the Securities Act or the applicable laws of other jurisdictions.

This announcement is for information purposes only and does not constitute an offer or invitation to sell or issue or the solicitation of an offer to buy, acquire or subscribe for New Ordinary Shares to or by anyone in any Excluded Territory or to any person to whom it is unlawful to make such offer or invitation or undertake such solicitation. Any failure to comply with these restrictions may constitute a violation of the securities laws of such jurisdictions. Subject to certain exceptions, the securities referred to herein may not be offered or sold in any Excluded Territory or to, or for the account or benefit of any national resident or citizen of any Excluded Territory. This announcement does not constitute an extension into the United States of the offer mentioned in this announcement, nor does it constitute nor form part of an offer to sell securities or the solicitation of an offer to buy securities in the United States. The New Ordinary Shares have not been and will not be registered under the Securities Act or under any securities laws or with any securities regulatory authority of any state or other jurisdiction of the United States. The New Ordinary Shares may not be offered, sold, resold, taken up, transferred, delivered or distributed, directly or indirectly, into or within the United States absent registration under the Securities Act or an available exemption from, or in a transaction not subject to, the registration requirements of the Securities Act and in compliance with any applicable securities laws of any state or other jurisdiction of the United States. There will be no public offer of the New Ordinary Shares in the United States. The New Ordinary Shares may not be offered or sold to, or for the account or benefit of, any ADR Holder. Subject to certain exceptions, no action has been taken by the Company or by the Joint Bookrunners that would permit an offer of the New Ordinary Shares or possession or distribution of this announcement in the Excluded Territories or any other jurisdiction where action for that purpose is required, other than the United Kingdom. No public offering of the shares referred to in this announcement is being made in any Excluded Territory or elsewhere.

This announcement has been issued by, and is the sole responsibility of, the Company. No representation or warranty, express or implied, is or will be made as to, or in relation to, and no responsibility or liability is or will be accepted by the Joint Bookrunners or the Co-Lead Managers or by any of their respective affiliates or agents as to or in relation to, the accuracy or completeness of this announcement or any other written or oral information made available to or publicly available to any interested party or its advisers, and any liability therefore is expressly disclaimed.

J.P. Morgan Cazenove, which is authorised by the Prudential Regulation Authority (the "PRA") and regulated in the United Kingdom by the FCA, and the PRA, and Liberum, Shore Capital and W.H. Ireland, each of which is authorised and regulated in the United Kingdom by the FCA, are each acting exclusively for the Company and no one else in connection with the proposed Firm Placing and Placing and Open Offer and Admission, and will not regard any other person (whether or not a recipient of this document) as a client in relation to the proposed Firm Placing and Placing and Open Offer or Admission, and will not be responsible to anyone other than the Company for providing the protections afforded to their respective clients, nor for providing advice, in relation to the proposed Firm Placing and Placing and Open Offer or Admission or any other matter referred to in this announcement.

The New Ordinary Shares to be issued pursuant to the Firm Placing and Placing and Open Offer will not be admitted to trading on any stock exchange other than on AIM, a market operated by the London Stock Exchange.

Neither the content of the Company's website nor any website accessible by hyperlinks on the Company's website is incorporated in, or forms part of, this announcement.