Director Dealing, Issue of Equity and TVR

Tertiary Minerals plc

www.tertiaryminerals.com

("Tertiary" or "the Company")

27 August 2015

Director Dealing, Issue of Equity and Total Voting Rights

Tertiary Minerals plc, the AIM traded company building a strategic position in the fluorspar sector announces that pursuant to terms agreed on 30 April 2014 and further to the RNS dated 20 August 2014, the non-executive directors of the Company will be receiving a portion of their annual fees in Tertiary Minerals' ordinary shares of 1 penny each ("Ordinary Shares"), on a six monthly ongoing basis, calculated with reference to the closing mid-market price the trading day prior to the issue of the Ordinary Shares.

On 27 August 2015, the Company resolved to issue a total of 35,897 Ordinary Shares to David Whitehead, a non-executive director, for the period 1 January to 5 April 2015. The Ordinary Shares were issued at a price of 3.0 pence per share, being the closing mid-market price on 26 August 2015.

The following table shows the number of Ordinary Shares in which David Whitehead has an interest following the issue of the Ordinary Shares:

* Mr David Whitehead is interested in 414,900 ordinary shares held through Glebekinvara (a company in which David Whitehead and his wife, Ann Whitehead, are both directors and are both 50% beneficial shareholders) in the name of Davycrest Nominees Limited.

Application has been made to the London Stock Exchange for 35,897 Ordinary Shares to be admitted to trading on AIM ("Admission"), and it is expected that Admission will occur on or around 3 September 2015.

Total Voting Rights

In accordance with Financial Conduct Authority's Disclosure and Transparency Rules ("DTR"), following the issue and Admission, the total issued share capital of the Company with voting rights will be 187,859,217 ordinary shares.

The above figure of 187,859,217 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 in their interest in, the share capital of the Company under the DTR.

Notes to Editors

Tertiary Minerals plc (ticker symbol 'TYM') is an AIM-quoted mineral exploration and development company building a significant strategic position in the fluorspar sector. Fluorspar is an essential raw material in the chemical, steel and aluminium industries. Tertiary controls two significant Scandinavian projects (Storuman in Sweden and Lassedalen in Norway) and a large deposit of strategic significance in Nevada USA (MB Project).