Blackham opens Matilda with focus fixed on future

THE INSIDE STORY: Blackham Resources (ASX: BLK) recently celebrated the official opening of the company’s Matilda and Wiluna gold operation, near Wiluna in Western Australia.

The celebrations recognised the achievements Blackham has accomplished in just 16 short months, leading to the pouring of the project’s first gold bar.

“The pouring of the first gold from the Matilda project was extremely satisfying from a company perspective, but it was also satisfying to be able to achieve such a major milestone with the participation of so many other groups,” Blackham Resources managing director Bryan Dixon told The Resources Roadhouse.

“It would not have happened so quickly if we hadn’t have received such loyal support from our shareholders, employees, contractors, the Wiluna Martu people, and community stakeholders”.

“The town of Wiluna has a long and significant mining history and we are proud to be leading the charge in the latest chapter of that history with the development of the Matilda and Wiluna gold project.”

With that achievement under its belt, Blackham Resources is now looking forwards and following a recent $25 million raising through a placement at $1 per share, the company has taken its cash position to $33.1 million.

Blackham will use the placement proceeds to expand the oxide and free milling resources and reserves at Matilda and to grow the project’s sulphide open pit and underground mine plan and reserves.

The funds will also enable the company to fast track a plant expansion study and sulphide circuit refurbishment.

Blackham also recently mitigated against any gold price risk by forward selling a further 34,250 ounces of gold at an average price of $1,774 per ounce taking its total gold hedge commitments to 35 per cent of forecast production over the next 18-month period.

What Blackham Resources has achieved, and is currently producing, has been well-documented during this recent phase.

Now, however, is time to focus on what the future has in store and how the company intends maintaining the momentum it has built to keep the re-commissioned facility turning over.

Resources at the Matilda and Wiluna gold operation currently stand at 48 million tonnes at 3.3 grams per tonne for 5.1 million ounces of gold.

Measured and Indicated Resources now total 22 million tonnes at 3.4g/t gold for 2.4 million ounces of gold.

The company anticipates to upgrade these soon with a re-estimate currently underway to include drilling undertaken since June 2016.

The stated objective at Matilda was to commence gold production at a rate of 100,000 ounces per annum and eventually ramp that up to around 230,000 ounces per annum.

Production commenced in October this year and is currently ramping to full commercial production, which Blackham hopes to achieve by years’ end.

An expansion study targeted this production goal within two years mainly through the treatment of the, previously maligned, Wiluna sulphides, which have current Measured, Indicated and Inferred Resources of 3.5 million ounces at 5.8g/t gold.

For Blackham, unlocking the value of these sulphides is crucial to its strategy, which involves increasing mining output and the capacity of the mill by running the sulphide circuit in conjunction with the current operating free milling circuit.

During Stage Two of the project, Blackham intends bringing additional resources into the mine plan from sources surrounding the mill, having determined potential exists to reduce operating costs should those resources justify a mill expansion.

Exploration drilling at Matilda on the M1 and M5 pits indicated potential mineralisation may be continuous between the two pits.

Infill and extensional drilling at M6 North confirmed plunging shoots along strike of the M6 pit.

The mining optimisation study confirmed favourable economics for the M6 pit to come into the mine plan.

Recent drilling undertaken to support the mill expansion study at the Wiluna mine defined mineralisation along strike and beneath existing pits, highlighting potential for cutbacks at several pits.

Drilling of the East and West Pits northern extensions delivered:

WURD0005
23m at 3.74 grams per tonne gold from 119m;

WURC0047

6m at 7.65g/t gold from 175m and 5m at 2.01g/t gold from 195m;

WURC0103
6m at 8.75g/t gold from 88m; and

WURC0083
7m at 3.17g/t gold from 38m

The East and West Lodes at Wiluna are former working mines, historically producing over 1.5 million ounces of gold – predominately from underground mining.

Mineralisation has been intersected below and along strike from the East and West pits with results to date from the East Lode indicating continuity of mineralisation between the East and North Pits.

Blackham is of the opinion the continuity of mineralisation between the historical East and North Pits increases the likelihood of the planned North and East pits merging together, which would improve mining economics from a lower stripping ratio.

The northern extensions of the East and West Lode mineralisation are likely to result in further oxide mineralisation for the Stage 1 operation as the base of oxidisation is approximately 50m deep in this area.

Drilling on the Gap Pit – between the Happy Jack and Bulletin open pits – confirmed extensions to the Bulletin deposit along Eastern Shear, including:

WURC0104
10m at 2.03g/t gold from 79m and 19m at 2.74g/t gold from 158m;

WURC0108
9m at 4.08g/t gold from 106m and 10m at 2.37g/t gold from 131m; and

WURC0106
19m at 2.66g/t gold from 6m.

A re-interpretation based on recent underground drilling at Bulletin led Blackham to consider the Bulletin Lode and the eastern Gap Lode may be the same mineralised structure.

Drilling already carried out to test the Gap lode identified extensive mineralisation in three separate lodes beneath and along strike from the Gap pit.

This drilling has also revealed how the limited depth of historical drilling has constrained the pit optimisation.

Drilling at the Golden Age North pit has indicated more high-grade free milling reef mineralisation that could be amendable to open pit mining.

Results include:

WURC0126
11m at 5.87g/t gold from 50m; and

WURC0114
7m at 4.9g/t gold from 109m.

The recent drilling at the Golden Age pit encountered mineralisation associated with quartz, which has been interpreted to represent a continuation of the Golden Age quartz vein.

The Golden Age orebody is currently being mined as an underground operation and is hosted within higher grade free milling quartz veins.

The two drillholes cited above, WURC0126 and WURC0114, intercepted the Golden Age structure 200m and 350m north of the historical Golden Age pit, leading Blackham to upgrade the mining potential in this area.

The company has completed a review of historical data, which suggests Golden Age may be wrapping into the Gap pit (Eastern Shear), in a similar fashion to what the company is encountering in the underground at 400m depths.

WURC0114 was drilled just 100m from the historical Gap pit and encouraging opinion that the Bulletin, Gap and Golden Age North pits may merge which will have a favourable effect on the mining economics in these areas.

“The latest Wiluna extensional drilling collaborated what we already considered the project to have, which is considerable potential to add significant base load open pit mining feed,” Dixon said.

“We anticipate the updated Wiluna open pit resources to complement the drilling success we achieved when we recently extended the Bulletin underground mineralisation.

“Both feed sources will be heavy contributors to the Wiluna expansion study we currently have underway.”


Blackham Resources Limited (ASX: BLK)
… The Short Story

HEAD OFFICE
Level 2, 38 Richardson St
West Perth WA 6005

Ph: +61 8 9322 6418

Email: info@blackhamresources.com.au
Web: www.blackhamresources.com.au 

DIRECTORS
Milan Jerkovic, Bryan Dixon, Alan Thom, Greg Miles, Peter Rozenauers,