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Highlights
The Råna project has proven potential for discovery of massive sulphide Ni-Cu-Co mineralisation and is underexplored using modern deposit models and exploration methods.
Excellent access to local infrastructure, located 37 kilometres by main road from the ice-free, deep-water
Port of Narvik in Nordland County,Norway .The project includes the past producing, underground
Bruvann Mine within a contiguous exploration licence holding of 25 square kilometres.
The Bruvann deposit included a small but high-grade (approximately 1 to 5% Ni) massive sulphide core, indicating that the intrusion generated high tenor nickel sulphide mineralisation.
Past production demonstrates the viability of operating in the region and the mine area remains designated for raw material extraction in the municipality land use zoning plan.
Kingsrose has identified three priority prospects with a focus on exploration for high-grade nickel-copper-cobalt sulphide mineralisation:
Largely undrilled massive sulphide mineralisation outcrops at surface over a 1.6 kilometre zone at the Rånbogen prospect with historical rock chip samples up to 2.3% Ni and 3.2% Cu
Historical (2006) drilling at the southeastern part of Rånbogen returned a best intercept of 17.5 metres @ 0.53% Ni, 0.12% Cu, 0.05 % Co from 101 metres (SH004), including 2.5 metres @ 1.13% Ni, 0.24% Cu, 0.10 % Co and remains open.
The Bruvann Mine is open immediately along strike from mine workings and is adjacent to a 1km long, undrilled conductive body which may represent massive sulphide mineralisation. Offset stylesof copper-rich mineralisation south of the mine are inferred from historical drill data in hole P-11-97 and have never been followed up:15.1 metres at 1.89% Cu from 148.6 metres, including 8.7 metres @ 2.35% Cu from 155.0 metres.
The prospective basal ultramafic part of the intrusion strikes over 8 kilometres and dips to the southeast within the licence holding. This has never been systematically explored.
The Transaction Implementation Agreement allows for Kingsrose to earn up to 75% over 8 years, through staged expenditure up to a total of
A$15m .
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Figure 1: Location of the Rana project and proximity to local infrastructure
“We are very excited by this development and the significance it has for validating the strategic interest we hold in the Råna project. This agreement provides an opportunity to significantly grow our shareholder’s value through the sole funded and rapid advancement of the Råna project by our new partner Kingsrose Mining. Additionally, we benefit from being aligned with aformidable team that combines Råna’s exploration and development expertise along with extensive jurisdictional knowledge, proven mining experience and success in transacting. We look forward to working with the Kingsrose team in setting a new standard in ‘green exploration and development’ with this partnership.”
“Råna is a very exciting nickel-copper-cobalt sulphide exploration project which complements Kingsrose’s growing critical metals portfolio in the Nordics. Syn-orogenic mafic-ultramafic intrusions analogous to Råna host some of the highest-grade deposits globally, such as Nova-Bollinger and Kabanga. Mineralisation at the Bruvann deposit provides proof of concept that the system is fertile and capable of producing high tenor magmatic nickel sulphide.
Exploration outside of the mine site is very immature, in that modern models of magmatic sulphide deposit formation and exploration techniques have not been applied. Kingsrose sees excellent potential for the discovery of additional high-grade massive sulphide bodies through exploration of the whole intrusive system, with a particular focus on basal and ‘offset’ styles of mineralisation which are common in these settings but have not been explored for historically. We have a focussed exploration program planned to rapidly advance our understanding of the geology and generate targets for drilling later in 2023.
This transaction is testament to our M&A strategy in a market where high-quality nickel sulphide projects are difficult to come by. Nickel is essential in the electrification required to achieve a low carbon future and
Key Terms of Transaction Implementation Agreement
The Transaction Implementation Agreement provides for the establishment of a new Norwegian joint venture company (“JV Company”) and for Kingsrose to offset expenditure on the Project as consideration for shares in the
Completion | Milestone | Consideration |
First (For 10% of shares in | The incorporation of the
SRH and GEMC transfer each of the Exploration Licences to the (First Milestone). | 10,000 |
Second (For 51% of shares in | Kingsrose (or arelated body corporate) (Manager), incurring expenditure of at least
(Second Milestone). | 94,617 10,513 1,000,000 KRM Shares will be issued and allotted to SRH. |
Third (For 65% of shares in | Expenditure by the Manager of at least an additional | 103,391 3,500,000 KRM Shares will be issued and allotted to SRH. |
Fourth (For 75% of shares in | Expenditure by the Manager of at least an additional $8 million within 3 years following Third Completion (Fourth Milestone) | 10,000 A cash payment of |
Completion of the transaction will occur in four stages, with each completion and payment and/or issuance of consideration subject to satisfaction of certain milestones on the terms set out in the Schedule to this announcement.
GEMC shall be free carried to completion of the Second Milestone, thereafter GEMC shall be required to contribute pro-rata (10%) to expenditure on the Project in accordance with a work program and budget to be determined by Kingsrose as Manager of the Project. In the event GEMC elects not to contribute its funding share, Kingsrose has the first right to provide such funding and acquire additional shares in
The Project is subject to three net smelter royalty deeds of one percent payable by
Exploration Potential and Work Program
Initial field observations by Kingsrose indicate that Råna is a mafic-ultramafic chonolith comprising multiple complex magmatic phases, with internal characteristics that are consistent with a conduit-style of emplacement. The basal ultramafic intrusive units occur mostly at the northwestern part of the intrusion which is controlled by SRH, and is the most prospective horizon for high tenor, massive sulphide nickel mineralisation.
Kingsrose interprets the mineralised intrusions at Bruvann and Rånbogen to be chonoliths forming part of a larger, multi-phase intrusive complex. Chonoliths are pipe like intrusions which may have short lateral but long down dip continuity.
Massive sulphide mineralisation typically occurs at the base of a chonolith and in the immediate footwall as ‘offset’ bodies of massive sulphide mineralisation. Exploration for these styles of mineralisation has not been systematically undertaken historically at Råna and these may be blind at surface, compromising detection by traditional methods.
Historical work focused predominantly on near mine exploration of outcropping mineralisation at Bruvann with limited to no applicationof modern exploration models for chonolith hosted magmatic sulphide deposits.
Deep penetrating AMT geophysical surveys are planned to explore for conductive bodies from surface to more than 600 metres deep, which may host massive sulphide mineralisation.
Airborne magnetic geophysical surveys will be used to model intrusion morphology.
Detailed mapping, core logging and XRF measurements for lithogeochemical characterisation will be used to generate a three dimensional geological model and identify prospective intrusive units.
Drilling is expected to commence later in the Norwegian summer.
Massive sulphide outcrops with high nickel tenors at Bruvann and Rånbogen demonstrate fertility and, with 8 kilometres of largely untested strike along the northern intrusion margin, Kingsrose considers that there is scope for a significant scale discovery.
Overview of the Project
Location and Tenure
The Råna project is located Nordland County,
The Project comprises four contiguous exploration licences totalling 25 square kilometres, owned 90% by
History
Exploration has been carried out sporadically at the Råna intrusion since at least 1880 when sulphides were discovered in the south at Eiterdalen. Exploration by Stavanger Staal and the NGU in the 1970s and 1980s focused on Bruvann, including 33,769.7 metres of drilling and various ground based geophysical surveys which defined the Bruvann deposit. A private company, Nikkel og Olivin and Outokumpu conducted underground mining at Bruvann from 1989 until 2002, initially through a small open pit and later underground mining. Production is reported to have totalled 8.5 million tonnes at 0.5% Ni, 0.1% Cu and 0.03% Co from approximately 25 kilometres of undergroundworkings, with life of mine recoveries reported as 74% Ni, 85% Cu and 62% Co.
Geology and Mineralisation
The Råna mafic-ultramafic layered intrusion outcrops over an area of 9 by 11 kilometres and comprises basal ultramafic peridotite and pyroxenite sills with upper, more mafic and voluminous gabbro norite and quartz norite, dated at 436.7 Ma and emplaced into Cambrian gneisses and argillaceous metasedimentary rocks with localised graphitic horizons.
Mineralisation typically occurs in the basal ultramafic units which host the highest tenor nickel sulphides and outcrop mainly in the northwest part of the intrusion. Sulphide mineralisation is also observed in the upper gabbronorites albeit of lower nickel tenor. Magmatic sulphide is observed at several prospects along the northern margin of the intrusion controlled by SRH, including the
Bruvann Deposit
Known mineralisation at Bruvann is largely mined out however historical drill core is available for inspection and provides an important source of information for understanding the controls on mineralisation. Historical drill data indicates that the mineralisation remains open along strike to the west and east, and that a low grade disseminated halo exists adjacent to the mine workings.
Mineralisation occurs from surface and has been drilled to at least 500 metres below surface in the west, where the intrusion and mineralisation is overlain by gneiss. The Bruvann deposit comprised a 10-45 metres thick, peridotite hosted, southwest dipping zone of disseminated sulphide which occurs over a strike of 1,000 metres, overlying a cylindrical, higher grade semi-massive to massive sulphide zone at the contact between peridotite and gneiss. Thisbasal sulphide-rich zone typically exceeded 1% Ni and contained up to 5.87% Ni, with thickness ranging from 2-25 metres, strike of over 500 metres and is inferred to remain open along strike to the east and west. Sulphides comprise pentlandite, sometimes occurring as coarse grains and loops in massive zones, together with pyrrhotite and chalcopyrite.
Offset styes of sulphide mineralisation within the host gneiss are inferred from historical drill data, including an unmined copper rich historical drill intercept immediately south of the mine which remains open, in hole P-11-97:
1.4 metres at 4.3% Cu from 94.4 metres and
15.1 metres at 1.89% Cu from 148.6 metres, including 8.7metres @ 2.35% Cu from 155.0 metres.
A 900 metre long, east-west conductor is observed at the southern edge of the Bruvann mine and a second, 1.1 kilometre long north-south oriented conductor is observed to the north of the mine. Both conductors are proximal to the mapped contact between the intrusion and gneiss and were historically interpreted as being related to graphitic units in the wall rock. The east-west conductor is immediately adjacent to the mined massive sulphide at Bruvann, and the north-south oriented conductor has never been followed up. Kingsrose considers that the north-south conductor warrants further exploration to test whether massive sulphides are present.
Rånbogen Prospect
Rånbogen is located 4.5 kilometres northeast of the
Historical rock chip sampling from this zone includes 30 samples exceeding 1% Ni, with a maximum of 2.3% Ni, coincident with shallow conductors identified by the 2006 SkyTEM survey. In 2006, the southeastern part of the Rånbogen prospect was drilled by SRH with 10 holes totalling 2431.4 metres to a maximum depth of 371.2 metres downhole. There are also two historical holes at the northern part of Rånbogen totalling 664 metres located 200 metres northeast of the mineralised outcrops. Seven holes intercepted disseminated sulphide mineralisation with narrow zones of massive sulphide which remain open (Table 1). However, the orientation of mineralised zones was not well constrained, no follow up drilling has been conducted and the potential extensions to depth have not been adequately explored with appropriategeophysical methods such as AMT (Audio Magnetotelluric) or EM (electromagnetic) surveys.
Table 1: Significant historical drill intercepts from the Rånbogen prospect
Hole ID | From (m) | To (m) | Interval (m) | Ni (%) | Cu (%) | Co (%) |
SH-004 | 101.0 | 118.5 | 17.5 | 0.53 | 0.12 | 0.05 |
incl | 102.5 | 105.0 | 2.5 | 1.13 | 0.24 | 0.10 |
SH-006 | No significant intercept | |||||
SH-007 | 86.0 | 95.0 | 9.0 | 0.25 | 0.06 | 0.03 |
SH-008 | 121.0 | 130.0 | 9.0 | 0.27 | 0.07 | 0.02 |
162.0 | 168.5 | 6.5 | 0.44 | 0.10 | 0.04 | |
incl | 166.9 | 168.0 | 1.1 | 1.76 | 0.31 | 0.17 |
SH-010 | 140.0 | 150.0 | 10.0 | 0.25 | 0.06 | 0.02 |
155.5 | 156.9 | 1.4 | 1.53 | 0.29 | 0.14 | |
SH-012 | 124.9 | 125.5 | 0.6 | 1.15 | 0.38 | 0.15 |
SH-014 | No significant intercept | |||||
SH-015 | 29.0 | 36.0 | 7.0 | 0.26 | 0.09 | 0.02 |
incl | 31.7 | 32.2 | 0.5 | 1.17 | 0.60 | 0.11 |
153.0 | 191.0 | 38.0 | 0.25 | 0.07 | 0.02 | |
SH-016 | 165.0 | 176.0 | 11.0 | 0.23 | 0.06 | 0.02 |
SH-017 | No significant intercept | |||||
Notes:
|
Arnes Prospect
Table 2: Significant historical drill intercepts from the
ID | From (m) | To (m) | Interval (m) | Ni (%) | Cu (%) | Co (%) |
SH-001 | No significant intercept | |||||
SH-002 | ||||||
SH-003 | ||||||
SH-005 | ||||||
SH-009 | 34.0 | 82.0 | 48.0 | 0.25 | 0.04 | 0.01 |
159.0 | 189.0 | 30.0 | 0.24 | 0.03 | 0.01 | |
270.0 | 312.0 | 42.0 | 0.24 | 0.04 | 0.01 | |
SH-011 | 56.0 | 100.0 | 44.0 | 0.23 | 0.04 | 0.01 |
187.0 | 209.0 | 22.0 | 0.22 | 0.03 | 0.01 | |
Notes: |
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Figure 2: Rana exploration project
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Figure 3: Long section at Rånbogen through A-A’ (Figure 2), viewed east.
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Figure 4: Long section at
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Figure 5: Cross section at
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Figure 6: Massive sulphide in outcrop at Rånbogen where historical rock chip samples up to 2.34% Ni are reported
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Figure 7: Historic drill core photos. Top left – massive pyrrhotite-pentlandite with pentlandite occurring as coarse loops (Bruvann BH-265-125, 1m @ 3.08% Ni); Top right – massive pyrrhotite-pentlandite (Rånbogen SH-004, 0.35m @ 2.52% NiS); Bottom left – net-textured sulphides in poikilitic harzburgite cross-cut by soft-walled sulphide vein (Bruvann, DH1061-01, 2m @ 0.7% Ni); Bottom right – massive sulphide vein breccia cutting olivine pyroxenite (Bruvann, BH-265-125, 1.25m @ 1.6% Ni)
About Kingsrose Mining Limited
Kingsrose Mining Limitedis a leading ESG-conscious and technically proficient mineral exploration company listed on the ASX. In 2021 the Company commenced a discovery-focused strategy, targeting the acquisition and exploration of Tier-1 critical mineral deposits, that resulted in the acquisition of the Penikat and Porsanger PGE-Nickel-Copper projects in
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As demonstrated with the Company’s current copper, nickel and cobalt projects in
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