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Sovereign Gold Company Limited (SOC)
is a publicly listed company on the Australian Securities Exchange (ASX).


General Overview

About Sovereign Gold Company

SOCSovereign Gold Company Limited (Sovereign Gold) (ASX:SOC) is an Australian-based specialist gold exploration company. Sovereign Gold has a portfolio of quality tenements located in Eastern Australia where there is known potential for the occurrence of Intrusion-Related Gold Systems (IRGS). Sovereign Gold has a highly prospective tenement package covering the Rocky River-Uralla Goldfield, 21km southwest of Armidale, NSW, Australia. In addition, through its 72.11% interest in unlisted Gossan Hill Gold, Sovereign also has a significant exposure to the recent world-class Mt Adrah Hobbs IRGS discovery south-east of Wagga Wagga, NSW.

Key Highlights
  • JORC Resource Estimate of 770,000 oz of gold (440,000 oz Indicated; 330,000 oz Inferred), within a total Mineral Resource estimate of 20.5 Mt at 1.1 g/t gold, at various cut-off grades
  • Rapid resource upgrade at Hobbs Pipe 1 at a cost of ~$1/oz
  • Potential for multiple gold pipe targets at Hobbs, located on Gilmore and associated Sutures with proven history of world class mines owned by major gold producers including:
    • Newcrest's Cadia-Ridgeway (60Moz gold equiv.)
    • Rio Tinto's [China Molybdenum] Northparkes (8Moz gold equiv.)
    • Barrick's Lake Cowal (2.8Moz gold equiv.)
  • Scale of Hobbs Gold-only pipe discovery unprecedented in Australia
  • Potential multi-million ounce bulk underground mining proposition with low-operating cost
  • Confirmed discovery of large IRGS system at Rocky River-Uralla Goldfield
  • $11 million work program underway at Rocky River-Uralla Goldfield, fully funded by investment from Chinese SOE JV partner Jiangsu Geological & Engineering Co. Ltd (SUGEC)
  • Controlling interest in Precious Metal Resources Limited (ASX: PMR)
  • Positive landowner relationships
  • Excellent logistics and infrastructure for gold mine development
  • Experienced Board and management team with proven track record


Project Overview

SOCThe primary exploration objective of Sovereign is to initiate, investigate, review and secure tenements with the potential to host large and economic IRGS gold and gold-copper systems. This prospect origination is then advanced to the prospect stage and canvassed to potential joint venture partners to provide additional funding for further exploration and potential economic development.

The main areas which have been targeted by Sovereign, where the potential geological ingredients exist for large IRGS systems, are the Rocky River-Uralla Goldfield region, the Adelong Goldfields / Mt Adrah on the Gilmore Suture in northeastern and southeastern New South Wales, respectively.

Mt Adrah Hobbs Deposit

The recent acquisition of Gossan Hill Gold and the subsequent deep drill testing of the Mt Adrah Hobbs prospect has led to a world-class discovery. The drill results and data to date provide strong indications that a large IRGS system(s) exists in the area.

Rocky River-Uralla Goldfield

Available production records indicate that the Rocky River-Uralla Goldfield yielded 5,193 kg (approximately 167,000 ounces) of gold mostly from Tertiary deep leads during the period 1858-1967. There are also many historic hard rock gold workings, but preliminary modern exploration only commenced recently and no drill testing has been undertaken to date. The 2003 Geophysical Survey, QN114 conducted by the GSNSW, showed that the hard rock gold workings are derived from magmatic fluids and could therefore represent a much larger mineralising system, raising the possibility that undiscovered lodes should be present.

Shallow workings and alluvial gold mining has also been a feature of the Adelong Goldfield since it was discovered in the late 1800's. Gold systems had been recognised in the area previously but until the advancement of the IRGS geological model was confirmed in 1999 no modern deep testing of these features was undertaken.

Rocky River-Uralla Goldfields

SOCThe Sovereign / SUGEC JV Project Tenements are centred on the town of Uralla, and are located 21 kilometres southwest of Armidale in the New England district of New South Wales. The area is extremely well supported by existing infrastructure, road, rail, power and engineering.

Key Highlights
  • Confirmed discovery of a large IRGS
  • A$11 million work program underway at Rocky River Uralla Goldfield, fully funded by investment from Chinese SOE JV partner Jiangsu Geological & Engineering Co Ltd (SUGEC)
  • Striking similarities to the giant Donlin Creek IRGS gold deposit (@ 2.7g/t in 323Mt) in Alaska
  • Collaboration between Senior Geoscientists from the NSW Geological Survey and Sovereign Gold to potentially invigorate gold exploration in the New England Fold Belt and lead to world class discoveries
  • Superb infrastructure logistics for operating environment: close to major sealed roads, rail, airport, labour source, University, water, power, engineering, foundries and other key services
  • Positive landowner relationships throughout Uralla-Armidale-Guyra districts.
  • Open access to predominately grazing country for fine wool and cattle.
  • High environmental standards using low impact equipment coupled with continuous rehabilitation exploration methods.
Rocky River-Uralla Goldfield – Historic Gold Mine

The Rocky River – Uralla Goldfield was discovered in 1852 and has a recorded production of 167,000 oz gold (noting the actual figures could be twice the recorded amount). There is potential that several tonnes of gold remains in the current alluvial system. IRGS deposits have liberated up to 15 tonnes of gold to river deposits. This IRGS has striking similarities to the giant Donlin Creek IRGS deposit, with gold in dykes like Martins Shaft, of the Yukon-Alaska running Tintina Gold Province.

Sovereign Gold has determined that many of the historic gold mines are closely associated with minor intrusions and felsic dykes. This association indicates an IRGS may be present. The recognition of an IRGS, is important because it means there is potential for the gold deposits to be much larger than that indicated by exposure of mineralisation in old workings.

Historically, most of the gold from the Rocky River-Uralla Goldfield was produced from Tertiary deep leads. In earlier times, however, not a lot of work was done to find the source of the gold. Gold that was won from hard rock mines was assumed to represent a series of small isolated Orogenic Gold Deposits, rather than an inter-related system. Today it is recognized that the Rocky River-Uralla Gold Field has the hallmarks of what is now known as an IRGS.

Comparison of the Rocky River IRGS Model with General plan model

Many of the mines plot on or are near a major magnetic linear feature that coincides with the Old Bonanza Dyke. This feature is continuous over several kilometres and strikes northeast. Other mines plot on a slightly different northerly trend that intersects the northeast trending magnetic feature. The magnetic features are suggestive of strong structural controls that are of particular interest wherever they intersect.

Goldsworth Mine

This mine was partially developed on two levels, Level 1 at 56m and Level 2 at 89m depth. The orebody is a 1.3m to 1.9m wide quartz-sulphide vein and with alteration zones into the adjacent granite. Grades are variable but ore crushing records indicate grades up to 1oz/t.

The Goldsworth Mine area, mineralised lode constructed with yellow triangular wire frames, with solid shading -gold mineralisation potential present over several kilometres of strike and at depth.


Mount Adrah Gold Limited

SOCMount Adrah Gold Limited (“Mount Adrah") is an unlisted exploration company with numerous gold prospects in New South Wales.

Previous exploration indicated the potential for a significant gold resource presence at the Mount Adrah properties and in particular, the recently discovered Hobbs Intrusion-Related gold system (IRGS) deposit which should enable Sovereign Gold to rapidly deliver resource growth and leverage off its experience exploring for IRGS in New South Wales.

Key Highlights
  • Mt Adrah Hobbs Pipe 1 Gold Deposit: Measured, Indicated & Inferred JORC Resource: 770,000 oz of gold (440,000 oz Indicated; 330,000 oz Inferred), within a total Mineral Resource estimate of 20.5 Mt at 1.1 g/t gold, at various cut-off grades
  • Rapid resource upgrade at Hobbs Pipe 1 at a cost of ~$1/oz
  • Scale of Hobbs gold-only pipe discovery unprecedented in Australia
  • Potential for multiple gold pipe targets at Hobbs: Hobbs Pipe 1 is only a small part of a giant gold system that is over 10km long
  • Mt Adrah is on the Gilmore Suture: Proven history of world class mines owned by major gold producers
  • Low cost striping ratios for early cash flow from open-cut due to gold mineralisation exposed at surface
  • Potential multi-million ounce bulk underground mining proposition with low-operating cost
  • Tests underway to confirm historical metallurgical trials that indicate >90% gold recovery
  • Excellent logistics and infrastructure for gold mine development
  • Gossan's expert team has identified and secured further prime areas for potential similar scale gold discoveries

Mount Adrah Mt Adrah project holds quality tenements around areas of known historic gold occurrences.

Precious Metal Resources Ltd

SOCSovereign holds 80% of Precious Metal Resources Ltd (ASX:PMR) an ASX listed exploration company, with a World Class deposit potential in base and precious metals – copper, lead, zinc, silver and gold.

PMR is a junior exploration company focusing on projects in regional NSW, Australia. PMR holds ELs and ELAs over prospective base and precious metals, many in close proximity to Sovereign Gold, targeting a range of mineralisation styles including:

  • Halls Peak: Large scale sedimentary exhalative (SEDEX) polymetallic targets
  • Peel Fault JV: gold exploration
  • New England: Broken Hill style polymetallic targets, VMS and porphyry targets

Additionally, PMR has signed a JV with SUGEC who are spending $10m on exploration to acquire a 30% interest in 3 Licences. PMR and Sovereign Gold have significant cost synergies and PMR provides Sovereign with increased scale, resources and exploration opportunities.

Key Highlights

  • Potential World Class high grade resource
  • A$10 million work program underway at Halls Peak, fully funded by investment from Chinese SOE JV partner Jiangsu Geological & Engineering Co Ltd (SUGEC)
  • Heliborne VTEM survey identified large conductors that may be potential large SEDEX deposits
  • Close to port – only 4 hours drive to Newcastle port
  • Several geochemical and geophysical anomalies are present that should identify further high grade, near-surface sulphides
  • Indications for the presence of orogenic gold from breccia floaters and small pods of Au–rich quartz on the tenements carrying 1 to 10 g/t Au
  • Simple, continuous, flat lying characteristics also analogous to Citronen Greenland zinc Deposit and Atlantis II Red Sea Base Metal deposit
  • Substantial body of exploration data to support exploration program objectives already extensively reviewed
  • VTEM suitable for PMR's Broken Hill tenements - potential to quickly identify mineralisation
  • Good infrastructure in local district at Halls Peak and Broken Hill
  • Conceptual room and pillar mining potential for Halls Peak
  • Previous drilling data indicates known high grade mineralisation
Halls Peak Project

The Halls Peak project is located 80km south-east of the regional NSW town of Armidale and consists of three granted tenements (EL7679, 5339 & 4474). It is a 4 hour drive to the port of Newcastle NSW.

The Company believes that Halls Peak is highly prospective for high grade copper, lead, zinc and silver massive sulphide deposits. PMR is exploring for such deposits with a heliborne VTEM survey identifying large conductors that may be potential large SEDEX deposits. In addition, PMR is investigating orogenic gold deposits.

History of Halls Peak Mine

Halls Peak has historically been subject to historic small scale mining with a number of operations by prospectors at various periods between 1916 and the late 1970s. Typically, these mines targeted copper, silver, lead and zinc from both gossans and massive sulphides.

Additionally, exploration and drilling work was done by big major miners, including BHP Co Ltd, Mt Isa Mines Ltd, The Zinc Corporation, Allstate Exploration N.L., Carpentaria Exploration Co. Ltd, CRA Exploration Ltd and Amoco Minerals Australia Co., which individually owned competing leases in Halls Peak in a time of low base metal prices. PMR has since consolidated 3 exploration licences ELs 4474, 5339 and 7679 (132km2), to cover all known areas of mineralization at Halls Peak.

The following mining titles have been consolidated into three exploration licences held by PMR:

  • Firefly Mine
  • Faints Mine
  • Mickey Mouse Prospect
  • Keys Prospect
  • Gibson's Open Cut Mining Area
  • Khans Creek Mine

Recent work has also identified numerous gold–rich quartz breccias values between 0.7 - 10.4g/t Gold. In addition, resampling and reassaying of c.4,000m of historic diamond drill core (from 1969 – 1974) has indicated that previous explorers did not assay some holes for silver and base metals as the mineralised rocks appeared almost identical to un-mineralised rocks.

The primary focus at Halls Peak by PMR is base metals exploration.

Peel Fault Project


  • SOC
    Underexplored Greenstone gold belt in New England province, NSW, extending > 120km
  • Excellent access to towns, infrastructure
  • Historically produced > 11 tonnes gold
  • > $9M spent on past geological, geochemical, geophysical surveys
  • Analogous to Californian Motherlode which produced 114M oz gold
  • Range of target types including Orogenic, Intrusion-Related Gold and Carlin-style mineralisation

The Peel Fault Project is located north of Tamworth in north-eastern NSW. The tenements are located along a major geological suture which PMR considers to be highly prospective for gold deposits, yet remains underexplored. PMR believes that the ground is prospective for three types of gold deposit:

  • Greenstone Belt Gold: Californian Mother Lode Au. Orogenic Liswanite (Silica-Carbonate-Au)-hosted Gold – Approximately half the World's gold has been produced from greenstone hosted deposits.
  • Intrusion-Related Gold systems (Large tonnage Au deposits). Altered gold-bearing monzonite dykes.
  • High Grade Narrow Vein Orogenic Reef/Structure.

Work Program

PMR's near term priority for Peel Fault will be on Crow King, EL 6648. The EL contains clusters of historic gold deposits over a 6.5km NW corridor. The area has been subject to 3DIP geophysical surveys which have identified a number of key gold target areas. An RC drilling program, as well as a deep diamond hole is planned to test the extent of potentially economic mineralisation, initially discovered by previous owner Icon Resources Limited (now Carbine Tungsten Limited).

Broken Hill Projects

The project contains a significant amount of historic work including a large Government database, soil geochemistry, and geophysical surveys. Given the long history of lead-zinc-silver mining at Broken Hill, previous exploration was typically focussed on lead-zinc-silver mineralisation only, with little interest in copper-gold. A similar minerals field, Mt Isa, has copper deposits closely related to the lead-zinc-silver, but which were found many years after mining started.

PMR believes that the copper is typically located in vent zones for the lead-zinc-silver mineralisation, and the company is now targeting such vent zones.

Given the historic lead-zinc exploration focus, previous exploration targeted mineralisation related to stratigraphy, with little structural analysis done. However, with PMR's focus on the vent related copper-gold mineralisation, the mains controls for this are structure, not stratigraphy.

Contact Info

Sovereign Gold Company Limited

Level 2
131 Macquarie Street
Sydney, NSW
AU Australia, 2000

Phone: +61 2 9251 7177
Fax: +61 2 9251 7500

Click here to view the interactive map
Sovereign Gold Company Limited Google Map
Sovereign Gold Company Limited Google Map

Share Registry

Computershare Investor Services Pty Limited - Click here to view share registry profile

Phone: +61 3 9415 5000
Fax: +61 3 9473 2500

452 Johnston Street
Abbotsford, VIC
AU Australia, 3067

Important Information

The General Overview, Services, Products and Projects information for this profile was last edited on 05 Jun 2015.

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