Barramine Manganese Project

Overview

Barramine Manganese

  • Historically, over $7.2M spent on exploration
  • Initial metallurgical tests show a 20% head-feed produces a 43% Mn, 10% Fe product
  • Located in world-class Pilbara manganese province 255km ESE of Port Hedland
  • Identical geological setting to the nearby Woodie Woodie Manganese Operations - 80km south. Shows significant potential for bulk mining operations
  • Historical expenditure of over $7.2M on drilling and exploration with >27,000m of drilling, geophysics (incl. magnetics, EM and IP) and sampling
  • Main target zone length ~2,500m with a total of 33 mineralized holes grading better than 5m at 10% Mn
  • Initial JORC resources achievable in Areas 3 and 4 with targeted in-fill drilling
  • Staged earn-in to an advanced manganese project in a world-class manganese province
  • Strong demand and new end uses in solar, EV’s and batteries

Significant Intersections

  • Best drill hole assays 36-46% Mn
  • Average intersection of 10m at 16% Mn from a total of 46 intersections in 39 mineralized holes
  • Thresholds; >10% Mn and >5m intersection
  • 27m @ 20.3% Mn from 37m (BRC 290) including 10m @ 31% Mn from 37m and 6m @ 28.8% Mn from 67m
  • 18m @ 21.4% Mn from 73m (BRC 241) including 3m @ 36.1% from 86m
  • 8m @ 22.4% Mn from 34m (BRC 169) including 2m @ 36.2% from 36m
  • 7m @ 22.3% Mn from 37m (BRC 332) including 1m @ 29.3% Mn from 40m
  • 10m @ 19.3% Mn from 91m (BRC 266) including 2m @ 35.3% from 93m
  • 10m @ 19.4% Mn from 10m (BRC 318) including 6m @ 23.6% from 12m

Barramine is the closest manganese opportunity to major port infrastructure at Port Hedland.

Project location: Pilbara, Western Australia

project location Barramine

Project Geology

  • 14km of prospective ground
  • Priority 2.5km long mineralised zone (Area 3 & 4) identified
  • Strong soil anomalies correlate with major structures

Regional Overview

Eastern Pilbara Manganese Field
World-class manganese province

Barramine regional overview

Note: series of similarly orientated faults north of the SW Fault - extending from Woodie Woodie to Barramine and the increase fault intensity between Braeside and Barramine

Drill Hole Distribution

  • Mn >10%
  • Thickness >5m

Dril Hole

Barramine successful drilling, solid geology and manganese signature

Geological setting of Barramine is identical to world-class Woodie Woodie Manganese Mine 70km to the south.

Barramine Manganese Mineralisation Model

Barramine Manganese Mineralisation Model

Metallurgical Test Work

Beneficiation testing indicates recovery of manganese similar to Woodie Woodie product.

  • DMS test work indicates 20% Mn head-feed can produce 43% Mn, 10% Fe product
  • Metallurgical test work was completed on 11 composite samples during 2010 by NAGROM Laboratories. The aim of the test work was to determine the potential for upgrading the material from Barramine
  • The beneficiation test work was conducted on composite RC drill samples from seven drillholes spread over five prospects, these being representative of the current mineralisation identified so far at Barramine
  • Based on the preliminary test work done, the following observations have been made (Vincent Algar, 2011):
    “DMS and gravity separation tests show manganese can be upgraded from approximately 20% feed to 43% product, pointing to a highly saleable product. 76% of the manganese metal was recovered from 35% of the mass in the DMS, pointing to extremely favourable mining and processing economics” (SRR ASX Release, January 2011)

Resource Potential over 2.5km strike length

Mineralised zone (Areas 3 and 4) identified; further drilling between these zones and along strike a priority.

  • Visible manganese alteration and argillic dissolution over target strike length ~2,500m
  • Partly drilled ~ 600m (Area 3 and 4 south), only 24% strike tested to date
  • Scattered outcrop of high grade cryptomelane/nsutite cap over 400m
  • Targeting the remaining 1,900m with a conceptualized mineralised zone 50m wide, from 30-100m depths over possibly 50% of the area.
  • Area 5 is also recommended for further investigation – BRC250 intersected 15m @ 20% Mn (composite)