Director/PDMR Shareholding

Tertiary Minerals plc

("Tertiary" or "the Company")

DIRECTOR'S DEALINGS

Tertiary Minerals plc, the AIM traded Company building a strategic position in the fluorspar sector, announces that on 21 March 2013, following the recently announced exercise of warrants, Mr Donald McAlister, non-executive director, has sold 300,000 shares in the Company .

Following this sale Mr McAlister now holds 457,821 New Ordinary Shares, being 0.34% of the issued share capital of the Company.

ENQUIRIES

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

Patrick Cheetham, Executive Chairman www.tertiaryminerals.com

Cantor Fitzgerald Europe Tel: +44 (0)20 7894 7000

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