ASA Copper

Copper licences are divided into two entities that cover about 4,721 km² of world-class copper mineralisation zones in the Katanga Province of DRC. SEMHKAT is a wholly owned stake in five copper licences with a JORC compliant resource of 210,058 tonnes of contained copper (grade 0.8%). Separately we hold a 38% non-dilutable stake in 27 licences in a joint venture with Zhejiang Hailiang, the largest tube copper manufacturer in the world.

OVERVIEW

A joint venture with Hailiang was signed in February 2013 covering 27 licence areas where Hailiang committed $25m in exchange for a 62% stake in the JV entity (MUYA SARL). Hailiang has met the terms of Phase 1 of this agreement and the 27 licences were transferred to a development company in 2016. Asa Resource holds a 38% non-dilutable stake.

Zhejiang Hailiang Company Limited is listed on the Shanghai stock exchange and is the world’s largest copper tube manufacturer. With such a strong partner, our objective is to unlock the value of our exploration concessions.

Asa Resource retains a 100% interest in five other very promising concessions of Kibolwe, Lutobwe, Lombe, Kapande and Mifumbi, where drilling was completed in November 2014.

Asa Resource retains a 100% interest in five other very promising concessions of Kibolwe, Lutobwe, Lombe, Kapande and Mifumbi, where drilling was completed in November 2014.

 

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Kibolwe is the most advanced of the SEMHKAT concessions and is located approximately 150 kilometres northwest of Lubumbashi and 86 kilometres southwest of the town of Likasi. Kibolwe is a near surface, secondary-enriched, sediment-hosted stratiform copper deposit. The dominant oxide mineral is malachite with minor amounts of cuprite and tenorite, occurring within weathered argillaceous limestones. The drilling programmes have outlined near-surface, flat-lying mineralised units up to 40m thick, extending over a strike of 1,500m.

 

Resource  Grade (%/t) Tonnes (t)
Kibowle — Inferred 0.08% 210,058

  

Exploration is focusing on sediment-hosted stratiform copper-cobalt, iron-oxide-copper-gold (IOCG) occurrences as well as on showings of lead and zinc. The exploration programme to date includes:

  • a high-resolution aeromagnetic and radiometric survey flown over the bulk of the area (54,000 line km)
  • 12,000m of drilling at the advanced Kibolwe surface deposit
  • 5,700m drilling on extensions of Kibolwe
  • 7,000m drilling at satellite targets within 10km of Kibolwe
  • soil geochemical sampling of an area of approximately 1,500km2
  • geophysical and geological mapping surveys

 

Completion of the Phase 1 programme resulted in the statutory shedding of 50% of ground holdings. Phase 2 work programme commenced in July 2013 by Hailiang’s sub-contractors (Huakuan, Inner Mongolian and SinoMine) and the SEMHKAT technical team. A target generation exercise was conducted and defined high-priority targets for follow-up exploration. Eight targets were delineated at Lunsano and reverse circulation drilling was completed. Other important targets were delineated at Kitemena East, Kawesitu North, Lutobwe, Kifita and Lukosombi. Our joint venture partner has been continuing with their exploration programme including geochemistry and geophysics and drilling.

 

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Since Zhejiang Hailiang now controls 62% of the JV company (Muya Resource SARL), the Group is reliant on them to provide resource and exploration updates — we retain a non-dilutable 38% shareholding in the JV.

Phase 1 exploration programme was completed in 2013, which resulted in the statutory shedding of 50% of ground holdings. Phase 2 work commenced in 2014 by Hailiang sub-contractors’ (Huakuan, Inner Mongolian and SinoMine) and the SEMHKAT technical team. Target areas were delineated at Lunsano, Kitemena East, Kawesitu North, Lutobwe, Kifita and Lukosombi and an exploration programme including geochemistry and geophysics, followed by drilling at Lutobwe, Lombe, Kapande and Mifumbi.

 

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LUNSANO

The Lunsano area (Fig 4) forms part of the Kitemena-Kitungulu-Kamungoti (‘KKK’) zones and lies on the far east of the KKK zones. The Lunsano area overlies both the Roan groups and lower Kundelungu rocks, and hosts a Cu-Pb-Zn anomaly. The copper data forms a coherent anomaly whereas Pb and Zn are more diffuse. The 2000 by 2000m copper anomaly has Cu values generally in the 80-150ppm range, and is underlain by the Roan group. A peak soil copper value of 1.38% was checked on ground and found to be located in-situ on laminated dolomitic shale. Detailed geological mapping and both regional and infill soil geochemical surveys are in progress. A 6000m RC drilling program has been planned.

 

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KITEMENA-KITUNGULU-KAMUNGOTI

The permit overlies Lower Kundelungu tillites, argillites and shales. Soil geochemical surveys conducted in 1998 and 2001 have outlined copper anomalies in the KKK area. The area has potential for Cu-Pb-Zn deposits as evidenced by the Cu-Pb-Zn anomalies picked up in the Kitungulu and Lunsano areas. Detailed geological mapping and regional soil surveys are under way. In addition to extension of regional geochemical surveys, infill geochemical surveys have also been planned as a follow-up to anomalies picked by regional soil surveys especially in Kitemena. A 2000m RC drilling campaign has been planned to investigate the Cu-Pb-Zn anomaly at Kitungulu.

 

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The +100ppm Cu Kamungoti Copper anomaly is 8000 by 500m in areal extent (Fig 5). The copper mineralization, where exposed in artisanal pits, is hosted within a shear zone at the contact of dolomitic shale and massive dolomite. The shear zone hosts malachite mineralization associated with quartz veining and abundant iron and manganese oxides. Detailed mapping, regional soil geochemical surveys as well as a 2000m RC drilling program were carried out in 2012/13.

 


MWOMBE

The Mwombe area lies 13km to the east of Kibolwe Main and overlies units of mineralised Roan, Mines subgroup (Fig 6). The units form a series of anticlinal and synclinal folds verging towards the South. On a local scale breccias zones have been identified which are related to the regional Shinkolobwe SW trending thrust and fault structures that extend into the concession. The area is underlain by Grand Conglomerat, argillaceous shales and brecciated formations that comprise clasts of the Roan formations.

 

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Exploration on the Mwombe North prospect has identified mineralised Mines sub-group strata outcropping over a 600-metre strike length. Assay results from trench and pit sampling programmes have yielded elevated nickel and cobalt values (up to 2% Ni and 0.38% Co over 1 metre) as well as gold, platinum and palladium (up to 1.1g/t Au, 0.1g/t Pt and 0.1g/t Pd). A 1,898m core drilling and 256m RC drilling program completed in 2008 intersected several encouraging mineralized units.

Mwombe South hosts a +150ppm copper anomaly which follows the trend of the cut-off between the Roan and the lower Kundelungu (Fig 6). Detailed mapping, pitting and trenching and RC drilling have been planned to investigate the Mwombe South anomaly.

 


KAWESITU NORTH

Kawesitu North is situated 10km NNE of Kibolwe Main, and is underlain by formations related to the Roan Group and Lower Kundelungu.. According to Gecamines mapping the Kawesitu hosts five blocks (‘ecaile’) of Roan stratigraphy with Mines subgroup rocks (CMN, SD, RSF and D Strat). Gecamines mapped 10.2km strike length of Roan stratigraphy in and around the northern portion of the Kawesitu license area, of 5.5km prospective stratigraphy extends into the Kawesitu license. The blocks range from 0.5-1.2km in strike length. Numerous EW trending faults which may relate to mineralization events occur within the area. A geochemical sampling campaign was undertaken in 2007 on Kawesitu (N&S) on a 500X200m grid. This exercise yielded a 3000 by 500m anomaly of +200pppm Cu on Kawesitu North (Fig 6). The Swampo deposit is on the same structural trend. RC drilling has been proposed.

 


MUKEMA

The early-stage Mukema prospect has breccia-hosted copper-silver mineralisation developed within Kundelungu sediments. The breccia contains malachite, chalcopyrite and chalcocite along a 700-metre strike length. In places the mineralised breccia is 40 metres wide and coincides with a 4-kilometre long thrust fault zone highlighted from the aeromagnetic and radiometric data. Pit sampling of the breccia has yielded copper and silver peak values of up to 32.2% copper, 60g/t gold and 439 g/t silver.

 

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MANIAMUNA CONCESSIONS (KASAI)

Regional geochemical soil sampling programmes have been designed to follow up observed anomalies at Kafakumba, a sediment hosted copper target, and Lulua, a magmatic nickel copper-sulphide target in the south of the Maniamuna concession area. 

 

Download Hailiang’s 2016 Press Release