Regulus Resources: Spin-Out of New Company, Aldebaran Resources, with an Option to Acquire a Majority Interest in the Altar Copper-Gold Project

  • Regulus shareholders to receive one post-consolidated share of Aldebaran Resources for every three Regulus shares held.
  • Aldebaran has secured a financing commitment for US$30 million at a price of US$0.96 (approximately CDN$1.28) per post consolidated Aldebaran share.
  • Aldebaran’s primary focus will be on the Altar copper-gold project (San Juan province), where it has entered into an option agreement to acquire up to an 80% working interest from Sibanye-Stillwater through a combination of cash payments, share issuances and project expenditures.
  • Altar contains 2,057 million tonnes of measured and indicated resources at 0.3% copper and 0.1 g/t gold (14.5 billion pounds of copper and 5.2 million ounces of gold) and 557 million tonnes of inferred resources at 0.3% copper and 0.1 g/t gold (3.4 billion pounds of copper and 1.1 million ounces of gold). Aldebaran has engaged Independent Mining Consultants, Inc. of Tucson, Arizona, to prepare a current NI 43-101 resource estimate for Altar, which is expected to be completed in August, 2018.
  • Aldebaran believes that the resources at Altar are open to expansion, and there is significant potential for discovery of higher grade and more gold rich zones within the porphyry copper-gold system.
  • Aldebaran will also acquire the Rio Grande copper-gold project and other earlier-stage Argentine assets from Regulus, including the drill ready Aguas Calientes gold-silver project.


Regulus Resources Inc. announced that it has entered into an arrangement agreement to spin out its Argentine assets, including the Rio Grande and Aguas Calientes projects, into a newly formed company, Aldebaran Resources Inc. Under the terms of the Arrangement Agreement, Aldebaran will enter into a joint venture and option agreement with Stillwater Canada LLC, an indirect subsidiary of Sibanye Gold Limited, to acquire up to an 80% interest in Peregrine Metals Ltd.

John Black, CEO and a Director of Regulus, stated: “The Altar Project already has a very large copper-gold resource and we see the potential to materially enhance the value of the project through further discovery and delineation of higher-grade zones. The agreement with Sibanye-Stillwater is designed to provide immediate benefits to shareholders of both companies as well as exposure to significant future upside potential from an attractive portfolio of exploration projects.”

Neal Froneman, CEO of Sibanye-Stillwater stated: “We believe Aldebaran possesses the vision, skills and experience to unlock the considerable upside potential of the Altar Project, in which we will continue to hold a meaningful interest. Consistent with our vision, we believe this partnership with Aldebaran will deliver value for all stakeholders, as the Altar Project is progressed up the value curve”.


Transaction Summary

Aldebaran will enter into the JV Agreement, entitling it to earn up to 80% of the Altar Project. The consideration to acquire the Altar Project comprises:

  • The commitment of Aldebaran to carry the next US$30 million of expenditures on Altar over five years (inclusive of 2018 drilling that was conducted between February and May of this year) to earn 60% in the Altar Project.
  • An option granted to Aldebaran to earn an additional 20% in the Altar Project by spending an additional US$25 million over a three year period following the initial earn-in.

Transaction is expected to occur in the third quarter of 2018.


Aldebaran Projects

The Altar Cu-Au (Copper-Gold) Porphyry Project is located in San Juan Province, approximately 10 km from the Chile-Argentina border and approximately 180 km west of the city of San Juan (See figure 1). The operating Pelambres copper mine of Antofagasta Minerals is located approximately 25 km to the south (in Chile) and other nearby large porphyry copper projects include El Pachon (Glencore) and Los Azules (McEwen Mining) in Argentina. Altar hosts a large porphyry copper-gold system with mineralization currently defined in three distinct zones – Altar East, Altar Central and the recently discovered QDM-Radio Porphyry zone, about 3 km to the west of Altar Central. Mineralization at all of these porphyry deposits is associated with Miocene intrusive centers emplaced into Miocene volcanic rocks and is dominantly copper or copper-molybdenum. Altar is noteworthy for having relatively higher gold grades associated with the copper mineralization compared to the aforementioned nearby porphyry systems.



The Altar Project was first explored and drilled by CRA/Rio Tinto (7 holes – 2,841 m) in 1995-2004. Peregrine, a Canadian exploration company, subsequently optioned the property from Rio Tinto in 2005. Peregrine expanded the property and completed 56,761 m of drilling in 146 drill holes from 2005-2011 to define an initial mineral resource estimate at Altar Central and Altar East.

In October 2011, Stillwater Mining Company acquired Peregrine for approximately US$490 million and in the subsequent period of 2012-2013 completed an additional 38,380 m of drilling in 80 holes to further define estimated mineral resources at Altar Central and Altar East. The estimated mineral resource for the Altar Project, based on drilling through 2013, consists of 2,057 million tonnes of measured and indicated resources at 0.3% copper and 0.1 g/t gold (14.5 billion pounds of copper and 5.2 million ounces of gold) and 557 million tonnes of inferred resources at 0.3% copper and 0.1 g/t gold (3.4 billion pounds of copper and 1.1 million ounces of gold). As stated above, Aldebaran expects to file an updated NI 43-101 report in connection with the filing of the information circular in respect of the Transaction by August, 2018.

In 2014, Stillwater refocused on platinum group metals production and Altar was determined to be a noncore asset. Exploration at Altar has been fairly limited since that time with principal activities in 2014 and 2015 limited to surface mapping and the collection of baseline environmental data. A smaller drill campaign in 2016 (4,931 m in 8 holes) resulted in the discovery of the upper QDM zone, which is dominantly a gold stockwork zone with minor copper values. Additional limited drilling in 2017 (5,630 m in 7 holes) further defined the QDM zone and discovered higher grade copper-gold mineralization at depth.

Mineralization at Altar remains open in several directions laterally and to depth with multiple holes terminating in higher grade copper-gold mineralization (See figures 2 and 3). Aldebaran believes that there is potential to expand these areas of higher grade.


Sibanye acquired Stillwater in 2017 and the Altar Project was further deemed to be non-core to Sibanye-Stillwater.

Regulus subsequently completed an extensive review of the project and entered into discussions with Sibanye-Stillwater which led to the current agreement. Sibanye-Stillwater has completed additional drilling at Altar in the period of February to May of 2018 (4,923 m of drilling in 3 new holes and one extension of an existing hole).


The Rio Grande Cu-Au-Ag-Mo Porphyry Project is 100% owned by Regulus and is located in Salta Province in NW Argentina. It is favourably located along the prominent NW-trending Archibarca Lineament which also controls the location of the world-class Escondida porphyry Cu deposit (BHP-Billiton), 150 km to the west-northwest in Chile. The Rio Grande deposit is located approximately 80 km due south of the large Taca Taca porphyry Cu-Mo deposit (First Quantum Minerals) and approximately 10 km west of the Lindero Au porphyry deposit (Fortuna Silver). Cu-Au-Ag mineralization at Rio Grande is hosted within a Tertiary intrusive-volcanic complex and occurs within a distinct 2-km diameter ringshaped fracture zone defined by IP chargeability, as well as Cu- and Au-soil geochemical anomalies.

Extensive exploration and drilling was completed at Rio Grande by Antares Minerals Inc. (“Antares”) in the period of 2004-2008. No significant work was completed at the Rio Grande project from 2009-mid 2011. In December 2010, Antares was sold to First Quantum Minerals for $CDN 650 million and the Rio Grande project along with $5 million in cash was spun into a new company, Regulus Resources Inc.

An initial NI 43-101 resource estimate was prepared in 2011 on the basis of 78 drill holes (33,015 m) and 11,294 m of surface trenches and includes all drilling on the project through to the end of 2008. The estimated mineral resource at Rio Grande includes 55.3 million tonnes of indicated resource at a grade of 0.36 g/t Au and 0.34% Cu (0.64 million oz. contained Au and 0.4 billion lbs. contained copper) and an inferred resource of 101.1 million tonnes at a grade of 0.31 g/t Au and 0.30% Cu (1.00 million oz. contained Au and 0.7 billion lbs. contained copper).

Regulus completed extensive additional drilling in 2011 and 2012 at Rio Grande (39,995 m in 48 drill holes) and a short drilling program was completed at the nearby Cerro Cori target in 2013-14 (1,200 m in 4 holes). Results from those drill programs have previously been released by Regulus. In 2012, Regulus merged with Pachamama Resources to acquire a 100% interest in the Rio Grande project. Activities at Rio Grande have been suspended since 2014 as Regulus has focused on the Anta Kori Cu-Au project in Peru.

Be the first to comment on "Regulus Resources: Spin-Out of New Company, Aldebaran Resources, with an Option to Acquire a Majority Interest in the Altar Copper-Gold Project"

Deje un comentario

Your email address will not be published.