Thor Energy Regulatory News (THR)

15 December 2017

THOR MINING PLC

BOARD CHANGES

The Board of Thor Mining Plc ("Thor" or the "Company") (AIM, ASX: THR), are pleased to advise of changes to the board of directors of the Company.

Thor Mining has made considerable progress of late, with significant project advancement and a shift to focusing on the commercialisation of our key interests, alongside assessing high impact additional opportunities. The Board has thus decided to appoint a further mining industry professional to the Board to assist project development and commercialisation activities.

The role to be filled is expected to be an additional Executive Director and the candidate is currently undergoing standard due diligence expected of all AIM company proposed directors. A further update will be provided when due diligence is completed.

Further, in recognition of progress achieved, including the Company's more robust financial position, and to allow him to focus on his other increasingly time consuming business interests, Gervaise Heddle has stepped down as Non-Executive Director of the Company, with effect from 14 December 2017.

Mick Billing, Executive Chairman, commented:

"The Company had identified a requirement for a full time mining executive at board level to help drive the strategy of commercialisation of our key advanced assets and as it assesses new opportunities, including the potential for lithium and conglomerate hosted gold in the Pilbara Region of Western Australia."

"I would like to thank outgoing director Gervaise Heddle, who has resigned due to demands associated with executive responsibilities elsewhere. He has been a source of sound commercial advice during his tenure. We wish Gervaise well and are grateful for his service."

"Thor is actively finalising various project specific work activities and we anticipate further updates will be provided to the market in this regard in the near term."

Enquiries:

Updates on the Company's activities are regularly posted on Thor's website www.thormining.com, which includes a facility to register to receive these updates by email, and on the Company's twitter page @ThorMining.

The information contained within this announcement is deemed to constitute inside information as stipulated under the Market Abuse Regulations (EU) No. 596/2014. Upon the publication of this announcement, this inside information is now considered to be in the public domain.

About Thor Mining PLC

Thor Mining PLC is a resources company quoted on the AIM Market of the London Stock Exchange and on ASX in Australia.

Thor holds 100% of the advanced Molyhil tungsten project in the Northern Territory of Australia, for which an updated feasibility study in 2015¹ suggested attractive returns. Thor also holds 100% of the Pilot Mountain tungsten project in Nevada USA which has a JORC 2012 Indicated Resources Estimate² on 1 of the 4 known deposits.

Thor is also acquiring up to a 60% interest Australian copper development company Environmental Copper Recovery SA Pty Ltd, which in turn holds rights to earn up to a 75% interest in the mineral rights and claims over the portion of the historic Kapunda copper mine in South Australia recoverable by way of in situ recovery.

Thor also holds a production royalty entitlement from the Spring Hill Gold project³ of:

· A$6 per ounce of gold produced from the Spring Hill tenements where the gold produced is sold for up to A$1,500 per ounce; and

· A$14 per ounce of gold⁴ produced from the Spring Hill tenements where the gold produced is sold for amounts over A$1,500 per ounce.

Notes

· ¹ Refer ASX and AIM announcement of 12 January 2015

· ² Refer AIM announcement of 22 May 2017 and ASX announcement of 23 May 2017

· ³ Refer AIM announcement of 26 February 2016 and ASX announcement of 29 February 2016

· ⁴ At the date of this announcement gold is trading at approximately A$1,650/oz