Copperstone Viscaria Acquisition: Promising Swedish Copper Project

1. + VISCARIA “NEW” COPPERSTONE Aktiespararna 12 November 2018

2. Significant base metal company in the makings • Sweden – outstanding mining jurisdiction • Copperstone project area (south east Arvidsjaur) first class porphyry copper prospect; multi commodity mineralisation • Acquisition of Viscaria copper mine (west Kiruna) from Sunstone Metals Ltd (Australia) - Environmental studies and Feasibility to be conducted; current plan aims at a mine re-opening by 2021/2022 with 250 employment opportunities, unusually low pre production Cap Ex of only 1 year’s revenue 1,350,000,000 SEK; pay back expected in 2-4 yrs • Real Copper price (SEK) 20 years after 1997 mine closure: +273% • Viscaria - 50 million tonnes of 1.2 % Cu with exploration upside • New Copperstone; Mineral resources: +359% from Viscaria • Nordea Research (SEK 1.2-2.1 Copperstone stand alone) Viscaria not yet included

3. The transactionCopperstone acquires Viscaria • Viscaria acquisition – Closing conditional upon: • Approvals at general meetings in Sunstone and Copperstone on November 27 and • +80 MSEK financing secured • Deal structure: • Sunstone Metals Ltd. receives 160 million Copperstone shares and • 40 MSEK cash at closing and • Additional 46 million Copperstone shares and 20 MSEK when environmental permit received • Sunstone Metals Ltd new long term main owner 100 % lock up for 18 months. • Long term owner engagement - Current Copperstone main owner, Chairman Michael Mattsson, and Directors Ann Zetterberg & Petter Tiger all 80% lock up for 18 months.

4. ViscariaMajor Swedish Copper Producer By late 2021 or 2022? • Former Copper producing mine owned by LKAB and Outokumpu – 12.5 million tonnes of ore mined at 2.3% Cu between 1983-1997, when closed due to low copper prices: 1,600 USD/t in 1997 compared to ~6 100 USD/t today • Significant infrastructure in place – industrial area, low capex need to reopen mine; power, road, rail, electricity (low cost), airport, skilled workforce, contractors, consultants. • Targeted annual production: 2 million tonnes per year of ore processed to deliver ~24,000 tonnes of copper in concentrate over 9 years life of mine • – Please note mine calculated on a total of 18 million tonnes out of a > 50 million tonne resource • Significant exploration upside, several long intersections +2% Cu in A and D zone (never mined). • Pre production: • Capex <130 MUSD • Estimated cash cost < 4 000 USD/t

5. Market outlookSolid copper market outlook – increased demand and historically low project pipeline • Decreasing Supply: • Copper resources becoming more scarce • Copper getting more difficult and expensive to mine • Copper grades are deteriorating • Copper project pipeline at its lowest in decades • Floor near current prices as high-cost mines come under pressure in the low $6,000 range • Increasing Demand: • Copper among the three most used metals in the world • Urbanization and the rise of renewable energy and electric vehicles fuels the world’s need for copper • Chinese economy continues to grow – boosting copper demand - shift to clean energy is not just a policy goal, it is an environmental and health necessity • India's copper demand on the rise Source: Nordea Source: Vontobel Long term copperpriceforecast

6. COPPERSTONEPROJECT A WORLD CLASS BASE METAL EXPLORATION PROJECT

7. Significant Cu mineralisation in outstanding jurisdiction • Copperstone has a long history in mineral exploration and are currently actively searching for a Cu porphyry in northern Sweden at Arvidsjaur close to the Skellefte field • Active Swedish copper porphyry explorer, connecting dots from 45 km exploration drillings; 50 years exploration history at the property; Copperstone, Boliden, Lundin Mining - 273 drill holes on the property • The Copperstone property has a scope of well in excess of 60-100 million tonnes mineralisation at 0.3-0.5% Copper, also some Zinc, Gold and Silver • Significant additional blue sky within and outside the geological model • More than 10 fold increased inferred resource expected within the geological model for the project area • Three exploitation concessions, whereof Eva k no. 1 recently confirmed by the Swedish Government, several exploration permits • Strong relations with land & stake holder; strong support in Arvidsjaur kommun; please refer to the newly launched “Invest in Arvidsjaur” www.arvidsjaur.se

8. Transition of 50 years exploration history into resources • 2018 programme completed acc to schedule and budget. +7,6KM drilled and identified broad zones of Cu mineralisation • Drill hole COS 18364 returns 103m with 0.42% Copper mineralisation • Geophysics together with drill intercepts have identified a prospective zone of approximately 1.5km strike length with a vertical extent of ~500m. • Sulphide veins associated with hydrothermal alteration on the margins of a zoned complex validate the theory that Cu mineralisation has resulted from a large scale hydrothermal mineralising system with potential to host a Cu resource with substantial tonnage • Similar geophysical anomalies to the ones that have been drill tested have also now been detected in the Svartliden/Eva area. GRANLIDEN CU INTERCEPTS STYRUD ARCTIC’S ”TRACEY”

9. VISCARIA

10. Viscaria Copper ProjectRight timing to be taking project towards production • High quality copper project; low CapEx, PFS stage copper development opportunity in a world class mining district • Over 600kt copper resource, exceptional exploration upside • Studies, Permitting and Development timetable aligned with analysts copper price increase expectations for beyond 2021/2022 • Global scarcity of copper projects in the current cycle PROJECT SITE KIRUNA TOWN PUBLIC ACCESS ELECTRICAL RAIL LOW COST HYDRO POWER

11. Viscaria Copper Project History • The Viscaria copper deposit, comprising A Zone and a very small portion of B Zone, was mined as an underground operation by LKAB and then by Outokumpu from 1983 to 1997 • 12.5 million tonnes of ore was mined at 2.3% Cu • Viscaria mine was closed primarily due to a weakening copper price closure due to Cu at some 1,700 USD/tonne • Viscaria D Zone deposit has never been mined

12. Viscaria Copper ProjectZones A, B and D major ore bodies drilled - significant Zone D exploration upside • Scoping-study suggests open pit (A,B) and underground (D) • Mineral Resource estimate 52Mt at 1.2% Cu • 18Mt subset of that used in 2016 Scoping Study* • Several Zone D intersections above 2% Cu Copper orebodies shown in orange Kiruna Viscaria LKAB *Refer Sunstone Annual Report released 16 August 2016.

13. MANAGEMENT & OWNERSHIP

14. New Copperstone Board + Management COPPERSTONE BOARD EXTENSIVE TECHNICAL AND FINANCIAL EXPERTISE Chris McKnight - CEO and Director - see Management Michael Mattsson - Chairman MSc from Stockholm School of Economics. Mattsson has substantial corporate finance and fund management experience from Enskilda Securities, Blackstone (New York) and Kaupthing. Other listed Board assignments include Endomines AB, Nordic Iron Ore AB and Net Trading Group AB. Shareholding: 14.375.843 Niclas Löwgren - Director MSc (Bus Management) from Stockholm University. Specialized in Finance and Business Development in both public and private companies within the financial sector and in property development. Other Board assignments include: NextCell Pharma AB. Shareholding: 2.831.157 Ann Zetterberg Littorin - Director CFO at Brighter AB, 20 years experience as controller and CFO, as well as from the financial private equity industry. Shareholding: 100,000 Petter Tiger - Director M.Sc. from Stockholm School of Economics. CEO of Lantero AB, developing organizational cultures. Previously broad experience within communications, including media relations, investor relations and public affairs. Shareholding: 2.268.404 PROPOSED NEW DIRECTOR EGM COPPERSTONE 27 NOVEMBER 2018 Malcolm Norris – CEO Sunstone. Geologist and New Business Development. Track record of discovery and growth. Previously with WMC Resources. Led team that discovered Tujuh Bukit porphyry Cu-Au in Indonesia with Intrepid Mines. Former CEO of SolGold and secured Cascabel Cu-Au project in Ecuador. MANAGEMENT: Chris McKnight (CEO, Geologist) Geologist; entrepreneur; +30 years experience in exploration and geology in infrastructure, raw materials, metals and mining. Successfully completed numerous exploration and geotechnical projects in Africa and Europe. McKnight founded Horizon Blue Resources AB in Northern Sweden in 2010 and since 2012, has worked successfully together with Copperstone and the substantial progress at the Copperstone Project and is currently the company's CEO as well as technical Chief Geologist. Maurice Zongo (Geologist) MSc - Geology. ~10 years experience in exploration and mining as well as Micromine modeling Karsten Drescher (GIS Geologist) MSc – Geology, 25 years experience in the mining industry Expert GIS applications for engineering, exploration and environmental studies

15. New Copperstone Cap Table SHAREHOLDER TABLE AFTER CLOSING* COPP B (Nasdaq, First North) Today After transactions ~248M Shares in issue; a market capitalisation of ~300 MSEK * ~408 M Shares subject to Closing of Viscaria; a New Copperstone market capitalisation of ~480 MSEK prior to financing and additional Viscaria purchase price (46 M Shares + 20 MSEK) subsequent to Environmental Permit of Viscaria. (Foundation) Stiftelsen Norrlandsfonden holds three different 7-year convertible debentures, total nominal value 5.1 MSEK

16. THANK YOU!

17. Disclaimer FORWARD LOOKING STATEMENTS: This presentation may contain forward-looking statements, which relate to future events or future performance and reflect Copperstone’s current expectations and assumptions. Such forward-looking statements reflect Copperstone’s current beliefs and are based on assumptions made by and information currently available to the Company. Investors are cautioned that these forward looking statements are neither promises nor guarantees, and are subject to risks and uncertainties that may cause future results to differ materially from those expected. These forward-looking statements are made as of the date hereof and, except as required under applicable securities legislation, the Company does not assume any obligation to update or revise them to reflect new events or circumstances. Please note drill intercepts are quoted as drilled and are not corrected for true thickness as the shape of the orebodies is not yet known.