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AIM Announcement

25 January 2018

TERTIARY MINERALS PLC ("Tertiary" or "the Company")

Holding(s) in Company

Tertiary Minerals plc (the "Company"), the AIM traded company building a strategic position in the fluorspar sector has today been made aware that Dr Y Alshammari is now beneficially interested in 10,871,450 ordinary shares of the Company, representing 3.03 per cent. of the Company's issued share capital.

Further information:

ENQUIRIES

Tertiary Minerals plc

Richard Clemmey, Managing Director Patrick Cheetham, Executive Chairman

Tel: +44 (0)1625 838 679

S P Angel Corporate Finance LLP Nominated Adviser & Joint Broker Ewan Leggat/Lindsay Mair

Tel: +44 (0)203 470 0470

Beaufort Securities Limited Joint Broker

Elliot Hance

Tel: +44 (0)207 382 8300

Market Abuse Regulation (MAR) Disclosure

Market Abuse Regulation (MAR) Disclosure Certain information contained in this announcement would have been deemed inside information for the purposes of Article 7 of Regulation (EU) No 596/2014 until the release of this announcement.

Notes to Editors

Tertiary Minerals plc (ticker symbol 'TYM') is an AIM-traded 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).

AIM: TYM | Find out more atwww.tertiaryminerals.com

Tertiary Minerals plc published this content on 25 January 2018 and is solely responsible for the information contained herein.
Distributed by Public, unedited and unaltered, on 25 January 2018 15:59:03 UTC.

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