Thor Mining PLC

10 October 2022 – Drilling Commences at Kelly’s Prospect, Ragged Range WA

Thor announces the commencement of a drilling program at the Company’s 100% owned Kelly’s Prospect within the Ragged Range Project, located in Eastern Pilbara, Western Australia.

Project highlights:

– 2,000m reverse circulation (“RC”) drilling program has commenced at the Kelly’s Prospect, Ragged Range

– Drilling is designed to follow up on rock chip samples returning up to 15.5 g/t Au and 535g/t Ag, and a historic drill intercept of 1.5m @ 22.97g/t Au (DDHK2 drilled in 19691).

– Drilling is targeting the sheared contact of the Euro Basalt and Boobina Porphyry that forms a silicified ridge, extending over 1 km.

– The drilling program also includes 1-3 drillholes beneath high-grade copper workings – Kelly’s (produced 609t of cupreous ore with a grade of 19% Cu, mined 1955-1970).

26 September 2022 – US Uranium and Vanadium Drilling Commences at Wedding Bell Project

Thor announces that drilling has commenced at the Company’s 100%-owned Wedding Bell and Radium Mountain Projects, located in the historic uranium-vanadium mining district within the Uravan Mineral Belt, southwest Colorado, USA.

– Maiden 2000m drilling program has commenced at the priority Rim Rock, Groundhog and Section 23 prospects within the Wedding Bell and Radium Mountain Projects.

– Drilling will target the prospective ‘Salt Wash’ horizon of sandstone-hosted uranium and vanadium mineralisation at shallow depths (~ 80m) for total drilling up to 2000m.

– Drilling at Rim Rock and Groundhog Prospects is designed to test extensions to high-grade uranium and vanadium mineralisation sampled within and around historic workings of up to 1.25% Uranium (U3O8) and 3.47% Vanadium (V2O5).

– A fenceline of drillholes at Section 23 Prospect will be the first holes drilled into this highly prospective area.

– The Wedding Bell and Radium Mountain Prospects are easy to access and close to excellent infrastructure.

20 September – Off-hole Electromagnetic Conductor identified beneath Nickel Gossan, Ragged Range Project, WA

Thor announces that anomalous nickel assays results from RC drilling have been returned and that an off-hole conductive anomaly has been identified from a subsequent down-hole electromagnetic geophysics survey at the Krona Prospect, within the Company’s 100% owned Ragged Range Project, located in the Eastern Pilbara, Western Australia.

– The shallow conductor, identified from the recent high-powered Fixed Loop Electromagnetics (FLEM) ground geophysics survey beneath the nickel gossan at the Krona Prospect, was drill tested with one RC drill hole

– The drill hole intersected the edge of the modelled FLEM conductor.

– A down-hole electromagnetic (DHEM) geophysics survey was completed and revealed an off-hole conductor consistent with sulphides and warrants drill testing to validate.

– The nickel gossan is located at the basal contact of the Dalton Suite ultramafic unit (altered Archean Komatiite) in the classic location for nickel-copper sulphide

mineralisation.

9 August 2022 – OZ Minerals Funding Kapunda Copper ISR Project, South Australia

Thor announces OZ Minerals Limited (ASX:OZL) (“OZL”) funding for technical investigations into In-Situ Recovery (“ISR”) technology at the EnviroCopper Ltd (“ECL”), Kapunda copper-gold ISR Project, in South Australia. Thor owns 30% equity in ECL.

– OZL has committed AUD$2.5 million over 18 months to support ISR research at the Kapunda project.

– Funding is non – dilutive to Thor’s 30% interest in ECL.

– OZL funding will continue studies into the potential economic extraction of copper resources via ISR.

– Collaboration between ECL and OZL will commence this quarter.