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Togo Manganese Exploration Update

16 Oct 2014 07:00

RNS Number : 4393U
Ferrex PLC
16 October 2014
 

Please click on the following link to view the press release with pictures and maps.

http://www.rns-pdf.londonstockexchange.com/rns/4393U_-2014-10-15.pdf

Ferrex plc / Index: AIM / Epic: FRX / Sector: Mining

16 October 2014

Ferrex plc ('Ferrex' or 'the Company')

Nayega Manganese Togo Project Exploration Update

 

Ferrex plc, the AIM quoted manganese and iron-ore development company focused in Africa, announces a positive exploration update from pit sampling aimed at increasing the current combined Measured and Indicated mineral resource of 11.0Mt @13.1% Mn at the 92,390Ha Nayega Manganese Project ('Nayega' or 'the Project') located in northern Togo held through Societe Generale de Mines.

 

The Company recently announced proposals for a two-phase development programme at Nayega where an initial low-cost 250,000 tonnes per annum open-pit mine producing a 38% marketable manganese product, which the Company has already demonstrated as having strong economics, followed by a second phase smelting facility to produce a valuable 74% High Carbon Ferromanganese alloy in the medium term.

 

Overview

· Positive exploration results from pit sampling (49 pits for 171.5m) at two priority targets in the vicinity of Nayega - T48 and T27; best intercepts include: (see figure 2)

· Target T48, located 1km northwest of the Nayega deposit

o 2.8m @ 23.1% Mn from surface

o 1.9m @ 23.0% Mn from surface

o 1.15m @ 19.4% Mn from surface

· Target T27, located 7km east-northeast of the Nayega deposit

o 1.4m @ 13% Mn from surface

o 1.15m @ 11.8% Mn from surface

o 2.23m @ 11.7% Mn from surface

· Additional pitting aimed at defining new JORC Code compliant resources for the two target areas will commence later this month

· T48 exploration target of 100-200Kt @ 15-20% Mn - has the potential to provide initial, easily-accessible high grade manganese ore to feed the 250,000 tpa production development

· T27 exploration target of +1Mt @ 8-12% Mn - has the potential to provide additional feed to extend the life of the operation

· Reconnaissance work is ongoing to ascertain the wider value potential of Nayega deposit

 

Ferrex Managing Director Mr. Dave Reeves said, "These latest exploration results have confirmed a number of exciting targets which have the potential to add substantial value by increasing the current JORC Code compliant resource of 11.0Mt @ 13.1% Mn. Importantly, the T48 and T27 targets are located within easy trucking distance of the planned plant at Nayega and have the potential to provide additional high-grade feedstock for both the proposed low-capex open-pit 250,000 tonnes per annum manganese mine and subsequently the proposed ferromanganese smelting operation. Over the coming months we plan to conduct additional mapping, sampling and pitting to advance these two target areas. With the Definitive Feasibility Study nearing completion for the Phase 1 open-pit operation and the Environmental Permit on track to be granted in Q4 2014 we look forward to reporting on these milestones in due course.

 

"In addition, with the imminent granting of the Nayega Mining Licence and the current reduction in iron ore prices, the Company has decided to primarily focus on its manganese assets and developing it towards production in the near term whilst continuing to advance its iron ore assets in South Africa and Gabon using in house skills to keep expenditure to a minimum. We will continue to engage with interested parties in terms of strategic alliances for our iron projects; however will only enter into such agreements if it is in the best interest of our shareholders, as we believe our projects are not only viable at this price level, they are even more attractive in the current iron market due to their very low capex requirements."

 

Regional target identification and pitting - Nayega

 

Initial evaluation of Ferrex's 92,930 Ha licence area surrounding the Nayega deposit was based on interpretation of Landsat imagery by remote sensing specialist Geoimage, with the aim of identifying areas having similar spectral patterns to the deposit. Targets were defined by selecting the strongest anomalies (size and intensity) on the vector map supplied by Geoimage, then comparing the anomalies with the appearance of known manganese mineralisation on the true colour Landsat image. A total of 47 targets were identified and assigned a priority rating based on appearance and likely source.

 

All 47 targets were evaluated in the field, with two targets (School and T27) selected for follow-up test pitting because of the presence of eluvial manganese mineralisation. Both of these targets are located within 10km of the Nayega deposit.

 

A total of 23 pits totalling 107m were dug across the two targets areas. As at the Nayega deposit, continuous vertical channel samples 10cm wide by 10cm deep were collected at 50cm intervals (maximum) from the top to the bottom of each pit; 258 primary samples were collected from the pits. A total of 373 samples, of which more than 30% were QA/QC samples as part of a rigorous regime to ensure veracity of the results, were transported to Lome for initial preparation at the DGMG laboratory before being shipped to Intertek in Ghana for further processing and analysis. The pit locations are shown in Figure 1.

 

 

 

Figure 1: Nayega high resolution satellite image, deposit and test pit locations.

Assay results have been received for all of the samples, with significant manganese intercepts returned in 9 of 13 pits dug in the T27 area. The best intercepts include: 1.4m @ 13% Mn, 1.15m @ 11.8% Mn and 2.16m @ 10.8% Mn, with Mn values ranging up to 15.2% over half a metre. Intercepts are listed in Table 1. Note that none of the School target pits returned significant intercepts.

 

Table 1: T27 pit locations and intercepts

 

Pit ID

North

East

Depth (m)

Intercept

OGPT001

1190922

226638

3.3

0.6m @ 7.6% Mn from surface

OGPT002

1190850

226690

8.3

2.3m @ 9% Mn from 1.7m

OGPT003

1190960

226860

4.3

1.4m @ 13% Mn from surface

OGPT004

1190960

227030

5.07

2.3m @ 9% Mn from 0.6m

OGPT005

1191560

226480

8

no significant intercept

OGPT006

1191560

226380

6.75

no significant intercept

OGPT007

1190736

226473

4.5

1.5m @ 7.2% Mn from surface

OGPT008

1190825

226332

2.3

no significant intercept

OGPT009

1190970

227240

5

1.15m @ 11.8% Mn from surface

OGPT010

1190748

227308

11

1m @ 8.3% Mn from 4.2m

2m @ 9.3% Mn from 6m

OGPT011

1191220

225380

4.2

no significant intercept

OGPT012

1189770

225940

6.3

no significant intercept

OGPT013

1190858

227253

5

2.16m @ 10.8% Mn from surface

OGPT014

1190870

227145

6.7

1.6m @ 8.6% Mn from 1.1m

NOGP02

1191171

227231

6.5

0.5m @ 6.2% Mn from 0.82m

NOGP03

1190970

227430

4.35

0.48m @ 8.2% Mn from 0.27m

NOGP04

 

1190751

227409

5.88

2.23m @ 11.7% Mn from surface

0.28m @ 16.8% Mn from 5.6m

NOGP05

1190600

227310

9

3.1m @ 10.4% Mn from 3.5m

NOGP06

226829

226829

3.65

0.5m @ 5.4% Mn from 0.9m

 

Analytical samples comprised vertical channel samples up to 0.5m long. Crushing of the samples was undertaken at the DGMG laboratory in Togo, the remainder of sample preparation was undertaken by Intertek (Tarkwa) with analysis by Intertek (Perth) using lithium borate fusion with an XRF finish.

 

Intercepts were calculated on intervals >5% Mn with no included internal waste.

 

Mineralisation is up to 2m thick, comprising manganiferous cobbles hosted in transported laterite grading 7-13% Mn over sampled intervals. Pits have intersected this material over an area in excess of 800m east-west by 200m north-south, with mineralisation closed off to the west. Mineralisation is open to the east and south, possibly concealed beneath barren laterite. Planned pitting will test for extensions to identified mineralisation and target an additional resource in excess of 1 million tonnes @ 8-12% Mn.

 

Targets identified northwest of the Nayega deposit (T48)

 

Outcrops of manganese mineralisation were identified by Ferrex in the T48 area northwest of the Nayega deposit in 2012. Selective samples collected from some of the outcrops returned Mn values ranging up to 42.3%.

 

High resolution satellite imagery was captured over Nayega, the T27 and T48 areas in early 2013 to better define the Nayega deposit boundary and to highlight targets in the vicinity. Remote sensing specialists Geoimage processed the images and created a detailed digital terrain model ('DTM') over the area. Geoimage's products were used to outline potential targets northwest of the deposit.

 

More detailed field evaluation of these targets and follow up test pitting was completed in late 2013. A total of 18 pits totalling 28.54m were dug. Continuous vertical channel samples 10cm wide by 10cm deep were collected at 50cm intervals (maximum) from the top to the bottom of each pit; 73 primary samples were collected from the pits. A total of 100 samples, which included 27 QA/QC samples, were transported to Lome for initial preparation at the DGMG laboratory before being shipped to Intertek in Ghana for further processing and analysis.

 

Assay results have been received, with significant manganese intercepts returned in 4 of 18 pits dug in the T48 area. Mineralisation comprises moderate to high grade detrital and lateritic material. Intercepts are listed in Table 2.

 

Additional pits are planned to define compliant resources in the vicinity of pits NWTP02, 03, 04, and 06. Based on work completed at T48 to date, a target for the area is 100-200Kt @ 15-20% Mn in two or three distinct deposits.

 

Table 2: T48 target pit locations and intercepts

 

Pit ID

North

East

Depth (m)

Intercept

Comments

NWTP01

1189480

218800

1.4

no significant intercept

barren laterite, sandstone

NWTP02

1189790

218830

2.6

1m @ 14.0% Mn from surface

detrital Mn on sandstone

NWTP02A

1189651

218801

2.34

1.15m @ 19.4% Mn from surface

detrital Mn on sandstone

NWTP03

1190030

219030

0.4

0.4m @ 6.8% Mn from surface

detrital Mn on sandstone

NWTP03A

1190024

219028

0.6

0.35m @ 6.5% Mn from surface

detrital Mn on sandstone

NWTP04

1190250

218830

2.8

1.9m @ 23.0% Mn from surface

lateritic Mn on sandstone

NWTP05

1190230

218970

0.7

no significant intercept

barren laterite, sandstone

NWTP06

1190390

218800

4

2.8m @ 23.1% Mn from surface

lateritic Mn on sandstone

NWTP07

1190740

219000

0.8

no significant intercept

barren laterite, sandstone

NWTP07A

1190747

219003

0.6

no significant intercept

barren laterite, sandstone

NWTP08

1190990

219250

0.7

no significant intercept

barren laterite, sandstone

NWTP09

1191100

219000

3.2

no significant intercept

barren laterite, sandstone

NWTP10

1191180

218430

2.8

no significant intercept

barren laterite, sandstone

NWTP11

1191180

217930

2

no significant intercept

barren laterite, sandstone

NWTP12

1191200

219360

0.2

no significant intercept

sandstone

NWTP12A

1191191

219366

0.5

no significant intercept

barren laterite, sandstone

NWTP13

1191450

219220

0.7

no significant intercept

barren laterite, sandstone

NWTP14

1190440

218440

2.2

no significant intercept

barren laterite, sandstone

 

Analytical samples comprised vertical channel samples up to 0.5m long. Crushing of the samples was undertaken at the DGMG laboratory in Togo, the remainder of sample preparation was undertaken by Intertek (Tarkwa) with analysis by Intertek (Perth) using lithium borate fusion with an XRF finish.

 

Intercepts were calculated on intervals >5% Mn with no included internal waste.

 

Competent Person Statement

 

Information in this release that relates to exploration results is based on information compiled by Ferrex Exploration Manager Mr Mark Styles. Mr Styles is a qualified geologist, a member of the Australian Institute of Geoscientists and is a Competent Person as defined in the Australasian Code for Reporting of Exploration Results. Mr Styles consents to the inclusion in the release of the matters based on his information in the form and context in which it appears.

 

The information in this report that relates to Mineral Resources has been compiled by Mr Lynn Widenbar. Mr Widenbar, who is a Member of the Australasian Institute of Mining and Metallurgy, is a full time employee of Widenbar and Associates and produced the Mineral Resource Estimate based on data and geological information supplied by Ferrex. Mr Widenbar has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity that he is undertaking to qualify as a Competent Person as defined in the 2004 edition of the Australasian Code for Reporting of Exploration Results, Minerals Resources and Ore Reserves. Mr Widenbar consents to the inclusion in this report of the matters based on his information in the form and context that the information appears.

 

Caution Regarding Forward Looking Statements: Information included in this release constitutes forward-looking statements. There can be no assurance that ongoing exploration will identify mineralisation that will prove to be economic, that anticipated metallurgical recoveries will be achieved, that future evaluation work will confirm the viability of deposits that may be identified or that required regulatory approvals will be obtained.

 

**ENDS**

 

For further information and the full Admission document visit www.ferrexplc.com or contact the following:

 

Dave Reeves

Ferrex plc

+ 61 (0) 420 372 740

finnCap

+44 (0)20 7220 0500

Elizabeth Johnson / Joanna Weaving

Broking

Matthew Robinson / Ben Thompson

Corporate Finance

Felicity Edwards/ Elisabeth Cowell

St Brides Media and Finance Ltd

+44 (0) 20 7236 1177

 

 

Notes

Ferrex plc is an AIM quoted, leading manganese and iron-ore exploration and development company in Africa. The Company is focussed on advancing low capex deposits, which benefit from proximal established infrastructure, up the development curve and into production. Ferrex has a solid portfolio of assets including three primary projects: Nayega Manganese Project in Togo ('Nayega'), Mebaga Iron Ore Project in Gabon ('Mebaga'), and Malelane Iron Ore Project in South Africa ('Malelane').

 

At Nayega, Ferrex is currently conducting a Bankable Feasibility Study and expects award of the mining permit in 2014. A Scoping Study indicates that Nayega could produce 250,000 tonnes per year of manganese concentrate at 38% with an initial capital expenditure of under $15m. A Scoping study on a ferro manganese plant in Togo has also been concluded and shows a lowest quartile operation with robust economics. The company is focussed on bringing the mine into production on grant of the mining permit whilst advancing the ferro manganese studies.

 

In parallel with this, Ferrex is focussed on proving up resources at its Mebaga concession in Gabon. A recent review has lead to the estimation of an exploration target comprising 90 to 150Mt @ 35 to 65% Fe (oxide target) and 550 to 900Mt @ 25% to 40% Fe (primary target) for Mebaga. The Oxide target will incorporate both DSO* and bBSO* material. Ferrex has recently completed an initial drill programme at Mebaga that has intersected significant widths of DSO and bBSO mineralisation.

 

The Company also holds the Malelane Iron Ore concession in eastern South Africa. A Scoping Study on Malelane has demonstrated its potential to produce 1.8Mtpa of beneficiated ore per year, with initial capital expenditure of $139m, a payback of 1.9 years, a Net Present Value of US$523m (10% discount rate) and a 16.6 year life-of-mine.

 

Ferrex has 934M shares in issue and the Ferrex's Directors have subscribed for and purchased approximately 28% of the issued share capital of the Company and are thus aligned with shareholders interests.

 

This information is provided by RNS
The company news service from the London Stock Exchange
 
END
 
 
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