ASX Code: THR 21 May 2020 Company Announcements Office ASX - PDF document

ASX Code: “THR” 21 May 2020 Company Announcements Office ASX Securities Limited, THOR MINING PLC 20, Bridge Street, Sydney, N.S.W. 2000 Registered Numbers: United Kingdom 05276 414 Australia 121 117 673 Correction Investor Presentation – OTC Markets & Murdock Capital Partners Registered Office: 58 Galway Avenue MARLESTON, SA, 5035 The directors of Thor Mining Plc (“Thor”) (AIM, ASX: THR) advise that the webinar at Australia which the Company will be presenting on Thursday 21 May 2020 at 11:00am US Eastern Ph: +61 8 7324 1935 time is hosted by OTC Markets and Murdock Capital Partners. Fx: +61 8 8351 5169 Mick Billing, Chairman and CEO will be presenting the webinar. Email: A copy of the presentation is appended, and a link to the webinar proceedings can be corporate@thormining.com accessed via: Website: https://tinyurl.com/0521VICSoMe www.thormining.com Twitter Authorised by Mick Billing, Chairman and Chief Executive officer @ThorMining For further information, please contact: Enquiries: Mick Billing Executive Chairman Thor Mining PLC THOR MINING PLC +61 8 7324 1935 Mick Billing , Executive Chairman +61 8 7324 1935 Nominated Advisor Colin Aaronson Updates on the Company's activities are regularly posted on Thor's website Grant Thornton www.thormining.com, which includes a facility to register to receive these updates by +44 (0) 20 7383 5100 email, and on the Company’s twitter page @ThorMining. AIM & ASX Listings: Shares: THR Directors: Michael Billing Richard Bradey Mark Potter Key Projects: • Tungsten Molyhil NT Pilot Mountain USA • Copper Kapunda SA Moonta SA Page | 1

ASX Code: “THR” 21 May 2020 About Thor Mining PLC Thor Mining PLC (AIM, ASX: THR) 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 August 2018¹ suggested attractive returns. Adjacent Molyhil, at Bonya, Thor holds a 40% interest in deposits of tungsten, copper, and vanadium, including an Inferred resource for the Bonya copper deposit ² . Thor also holds 100% of the Pilot Mountain tungsten project in Nevada USA which has a JORC 2012 Indicated and Inferred Resources Estimate ³ on 2 of the 4 known deposits. The US Department of the Interior has confirmed that tungsten, the primary resource mineral at Pilot Mountain, has been included in the final list of Critical Minerals ⁶2018. Thor is also acquiring up to a 30% interest Australian copper development company EnviroCopper Limited, which in turn holds rights to earn up to a 75% interest in the mineral rights and claims over the resource on the portion of the historic Kapunda copper mine in South Australia recoverable by way of in situ recovery⁴, and also holds rights to earn a 75% interest in portion of the Moonta Copper project also in South Australia, and is considered amenable to recovery by way of in situ recovery⁵. Finally, Thor also holds a production royalty entitlement from the Spring Hill Gold project⁶ of: • A$5.70 per ounce of gold produced from the Spring Hill tenements, sold for up to A$1,500 per ounce; and • A$13.30 per ounce of gold produced from the Spring Hill tenements, sold for amounts over A$1,500 per ounce. Notes ¹ Refer ASX and AIM announcement of 23 August 2018 ² Refer ASX and AIM announcement of 26 November 2018 ³ Refer AIM announcement of 13 December 2018 and ASX announcement of 14 December 2018 ⁴ Refer AIM announcement of 10 February 2016 and ASX announcement of 12 February 2018 ⁵ Refer AIM announcement of 5 March 2019 and ASX announcement of 6 March 2019 ⁶ Refer AIM announcement of 26 February 2016 and ASX announcement of 29 February 2016. Page | 2

Thor Mining Plc AIM / ASX “THR” May 2020

Disc sclaimer & & Leg egal N Notice This document and all other information (whether in writing or otherwise) which may be made available is: 1. Supplied solely for the intended recipient and may not be copied, reproduced, further distributed to any other person or published, in whole or in part, for any purpose. 2. Provided confidentially and only to assist the recipient to make independent enquiries. The distribution or transmission of this document in certain jurisdictions may be restricted by law and therefore persons into whose possession this document comes should inform themselves about and observe any such restrictions. Any such distribution or transmission could result in a violation of the law of such jurisdictions. Neither this document nor any copy of it may be taken to be distributed or transmitted into a jurisdiction which by law restricts or prohibits the same or to any national, citizen or resident thereof or any corporation, partnership or other entity created or organised under the laws thereof. The Company has not taken any action to permit the distribution or transmission of this document in any jurisdiction. This document and all other information (whether in writing or otherwise) which may be made available or part thereof does not: 1. Contain all information that investors and their professional advisers would require to make an informed assessment of the following: a. assets and liabilities, financial position and performance, profits and losses and prospects of the Company; and b. rights and liabilities attaching to the Company's securities. 2. Constitute, or form part of, any offer to sell or issue, or any solicitation of an offer to purchase or subscribe for any securities nor shall this document, or any part of it, or the fact of its distribution or transmission, form the basis of, or be relied on, in connection with any contract. 3. Constitute a promise or representation as to the future. Recipients must make their own investigations and inquiries regarding all assumptions, risks, uncertainties and contingencies which may affect the future operations of the Company or the Company's securities. No representation or warranty, express or implied, is made or given by or on behalf of the Company, its directors and officers or any other person as to the accuracy, completeness or fairness of the information or opinions contained in this document and all other information (whether in writing or otherwise) which may be made available or part thereof or any further information supplied by or on behalf of the Company or in connection with the Company and no responsibility or liability is accepted for any such information or opinions. All statements in this document (other than statements of historical fact) are forward looking statements that involve risks and uncertainties. The Company can give no assurance that statements will prove accurate and results and future events could differ materially. The Company, its directors and officers or any other person: 1. Do not accept liability for any loss or damage suffered or incurred by any investor or any other person however caused (including negligence) relating in any way to this document, including (without limitation) the information contained in it, any errors or omissions however caused, or the investor or any other person placing any reliance on this document, its accuracy, completeness, currency or reliability. 2. Do not accept any responsibility to inform the recipient or any other person of any matter arising or coming to its notice which may affect any matter referred to in this document. 3. To the maximum extent permitted by law, expressly disclaimed and excluded any liability of the Company, its directors and officers or any other person to the recipient or to any other person arising out of this document. The information in this report that relates to exploration results and exploration targets is based on information compiled by Richard Bradey, who holds a BSc in applied geology and an MSc in natural resource management and who is a Member of The Australasian Institute of Mining and Metallurgy. Mr Bradey is an employee of Thor Mining PLC. He has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Richard Bradey consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. AIM | 2 ASX : THR