3 April 2018

Imperial Minerals plc

(the “Company”)

Total Voting Rights

In accordance with the Financial Conduct Authority's Disclosure and Transparency Rules, the Company hereby announces that it has 31,831,250 ordinary shares of 0.1p each in issue (“Ordinary Shares”), each share carrying the right to one vote. The Company does not hold any Ordinary Shares in Treasury.

The above figure of 31,831,250 Ordinary Shares may be used by shareholders in the Company 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, the share capital of the Company under the Financial Conduct Authority's Disclosure and Transparency Rules.

The Directors of the Company accept responsibility for the content of this announcement.

For further information please contact:

Imperial Minerals plc

Russell Hardwick

Tel: +61 417 714 292

James Hamilton

Tel: +61 402 186 106

Peterhouse Corporate Finance Limited

Guy Miller and Mark Anwyl

Tel: 020 7469 0930