Exercise of Options - Issue of Equity & TVR

Tertiary Minerals plc

("Tertiary" or "the Company")

EXERCISE OF OPTIONS - ISSUE OF EQUITY

& TOTAL VOTING RIGHTS

Tertiary Minerals plc, the AIM traded company building a strategic position in the fluorspar sector, announces that it has received notice of exercise of Warrants from Mr Donald McAlister, non-executive director, to subscribe for 300,000 new ordinary shares of 1 pence each ("New Ordinary Shares") in the Company at a price of 2.375p New Ordinary Shares (the "Warrant Exercise").

Following the Warrant Exercise Mr McAlister will hold 757,821 New Ordinary Shares, being 0.56% of the enlarged issued capital of the Company.

Following the Warrant Exercise, the Company's issued ordinary share capital will be 135,766,214 ordinary shares of 1 pence each. Application has been made to the London Stock Exchange for the New Ordinary Shares, which rank pari passu with the Company's existing issued ordinary shares, to be admitted to trading on AIM. Dealings are expected to commence on 21 March 2013.

The above figure of 135,766,214 may be used by shareholders 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 FSA's Disclosure and Transparency Rules.

ENQUIRIES

Tertiary Minerals plc Tel: +44 (0)845 868 4580

Patrick Cheetham, Executive Chairman www.tertiaryminerals.com

Cantor Fitzgerald Europe Tel: +44 (0)20 7107 8000

Stewart Dickson/Julian Erleigh (Corporate Finance)

Jeremy Stephenson/Jacqui Briscoe (Corporate Broking)

VSA Capital Limited Tel: +44 (0)20 3005 5000

James Pinner (Corporate Finance)

Andrew Monk (Corporate Broking)

Yellow Jersey PR Limited Tel: +44 (0)20 3664 4087

Dominic Barretto/Anna Legge