Sirius Minerals : Issue of shares pursuant to convertible bonds

16 June 2017

Sirius Minerals Plc

Issue of shares pursuant to convertible bonds

Sirius Minerals Plc ('Sirius' or the 'Company') announces that it has received conversion notices in respect of 5 convertible bonds issued by Sirius Minerals Finance Limited during the Company's stage 1 financing. The convertible bonds, due 2023, which were issued at US$200,000 each and raised US$400 million, were announced on 3 November 2016 (RNS number 2246O). As a result of these conversions the Company will allot and issue 3,250,975 new ordinary shares of £0.0025 each (the 'Relevant Shares').

An application has been made for the Relevant Shares to be admitted to the premium listing segment of the Official List of the Financial Conduct Authority (the 'FCA') and to trading on the London Stock Exchange plc's main market for listed securities, and dealings are expected to commence at 8.00am on 19 June 2017. The Relevant Shares will rank pari passu in all respects with all existing ordinary shares in the Company.

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 will be 4,382,329,735Ordinary 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.

Notes on conversion

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About Sirius Minerals Plc

Sirius Minerals Plc is the fertilizer development company focused on the construction and development of its North Yorkshire polyhalite project in the 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 Main Market. Further information on the Company can be found at: www.siriusminerals.com.