• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Sierra Leone
Sierra Rutile Mine (Sembehun Expansion Project)

This page is not tailored to
devices with screen width under 750 px.
 Location:
1.5 km S from Moriba Town, Sierra Leone

  Regional Office:
110 Wilkinson Road
Freetown
Sierra Leone
Phone  ...  Subscription required
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Sierra Leone
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Heavy Minerals
  • Rutile
  • Ilmenite
  • Zircon
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2026
Sierra Rutile’s current mining and mineral processing operations extract and process ore from the Gangama, Taninahun, Gbeni and Lanti deposits. In future, it is intended that ore will also be mined from the Pejebu and Ndendemoia deposits. Operations include four wet concentrator plants (WCPs); a mineral separation plant (MSP) and associated infrastructure; residential camps for senior and management staff; and a dedicated port facility. These deposits and operations are collectively referred to as Area 1.

Sierra Rutile also holds one of the world’s largest and highest quality known natural rutile deposits, the Sembehun Project.

Sierra Rutile is currently undertaking a work program to convert Mineral Resources to Ore Reserves in order to extend the Area 1 life of mine plan.


Owners

Source:
CompanyInterestOwnership
Sierra Rutile Ltd. (operator) 100 % Direct
Sierra Rutile Holdings Ltd. 100 % Indirect
Sierra Rutile Holdings Limited (ASX:SRX) was demerged from Iluka Resources Limited (ASX:ILU) in July 2022.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Mineral sands
  • Sedimentary


Summary:

The Sierra Rutile Area 1 (the Gangama and Lanti Deposits and other deposits within SRL’s current operations in Sierra Rutile Area 1) consists of a series of prominent hills and slight undulations with an elevation range of 0.9 meters above sea level (masl) along the mangroves, to 322 masl with the highest point being at Gbangbama Hill. The existing dredge ponds and rutile deposits are situated around the Imperi Hills region on the western and south-western extent, with the Lanti and Gangama expansion situated within the alluvial plains and mangrove swamps to the north west. The hills in the region have relatively steep slope angles and form prominent features in the landscape. The majority of the area adjacent to the hills comprises undulating, broad expansive fluvial plains, becoming increasingly flat towards the mangrove swamp areas.

The local geology is described as Tertiary aged alluvial deposits overlying the Precambrian high-grade quartzo-feldspathic-garnet gneiss (charnockite). The SR Area 1 heavy mineral sands placer deposits are hosted in the Bullom sediments which were deposited following a Tertiary marine regression with seas levels some 100 m below current levels. Mechanical and chemical weathering liberated heavy minerals from the underlying Kasila Group which were deposited in pre-incised channels.

Estuarine and marine unconsolidated sediments are located to the west of the major watershed located within the centre of SR Area 1. In contra ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Sierra Rutile’s current mining and mineral processing operations at Area 1 include four wet concentrator plants (WCPs); a mineral separation plant (MSP) and associated infrastructure; residential camps for senior and management staff; and a dedicated port facility (collectively referred to as Area 1). Sierra Rutile also holds one of the world’s largest known natural rutile deposits, the Sembehun Project.

Mineral reserves at Area 1 is represented by Gangama, Gbeni North, Lanti and Taninahun deposits. Mineral resources for Area 1 extension are comprises Pejebu, Ndendemoia East and Ndendemoia West deposits.

GANGAMA
Mining at Gangama involves the excavation of ore using a conventional load and haul method to deliver ore from the Gangama deposits to two adjacent WCPs (known as DM2:1 and DM2:2). Ore is excavated in the pit and delivered to the Run of Mine (ROM) stockpile or direct to the feed hopper.

TANINAHUN
Taninahun deposit is located within Area 1, approximately 6km northeast from the current Gangama operation. Mining is planned to commence in the second half of 2022 with a contractor truck and excavator operation. Ore from the Taninahun deposit will be hauled to the existing Gangama
DM2:1 and DM2:2 plants. The ROM ore will undergo primary mineral processing to produce HMC as is the current process outlined above.

GBENI & LANTI
At Gbeni and Lanti, two separate WCPs are operated (DM1 and DM4). In both cases, ore ........


Crushing and Grinding


Processing

Source: Subscription required

Summary:

- subscription is required.


Production:

CommodityProductUnits202320222021202020192018
Rutile Mineral kt  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required122
Heavy Minerals Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Ilmenite Mineral kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zircon-Garnet Mineral in concentrate t  ......  Subscription required
Zircon Mineral kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20222021202020192018
Annual production capacity  ......  Subscription required
Ore tonnes mined  ......  Subscription required  ......  Subscription required8,928 kt8,278 kt8,227 kt
Tonnes processed  ......  Subscription required  ......  Subscription required293 kt of heavy minerals concentrate290 kt of heavy minerals concentrate242 kt of heavy minerals concentrate
Waste  ......  Subscription required  ......  Subscription required254,000 bcm
Total tonnes mined  ......  Subscription required  ......  Subscription required9,613,800 t
Subscription required - Subscription is required.

Reserves at December 31, 2022:
A calculated cut-off grade of 0.3% Rutile was applied to the new 2022 Mineral Resource estimates for Gangama, Gbeni and Lanti, while previously calculated variable grade cut-offs of between 0.25% and 0.5% Rutile have been applied to the balance of the project areas.

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 214 Mt Rutile 1.4 % 3.1 Mt
Proven & Probable 214 Mt Ilmenite 0.9 % 1.9 Mt
Proven & Probable 214 Mt Zircon 0.1 % 0.2 Mt
Measured 180.89 Mt Heavy Minerals 3.19 %
Measured 180.89 Mt Rutile 1.29 % 2.36 Mt
Measured 180.89 Mt Ilmenite 0.77 %
Measured 180.89 Mt Zircon 0.11 %
Indicated 313.83 Mt Heavy Minerals 4.1 %
Indicated 313.83 Mt Rutile 0.99 % 3.07 Mt
Indicated 313.83 Mt Ilmenite 0.63 %
Indicated 313.83 Mt Zircon 0.11 %
Inferred 284.06 Mt Heavy Minerals 2.9 %
Inferred 284.06 Mt Rutile 0.94 % 2.7 Mt
Inferred 284.06 Mt Ilmenite 0.61 %
Inferred 284.06 Mt Zircon 0.09 %
Total Resource 778.78 Mt Heavy Minerals 3.45 %
Total Resource 778.78 Mt Rutile 1.04 % 8.12 Mt
Total Resource 778.78 Mt Ilmenite 0.66 %
Total Resource 778.78 Mt Zircon 0.11 %

Commodity Production Costs:

Commodity202320222021202020192018
Cash costs Rutile  ......  Subscription required  ......  Subscription required
Cash costs Heavy Minerals  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,155 / t  AUD
Cash costs Rutile  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Financials:

Units202320222021202020192018
Capital expenditures (planned) M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required
Revenue M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 205.7  AUD
Gross profit M  ......  Subscription required
Operating Income M  ......  Subscription required
Pre-tax Income M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required -14.5  AUD
After-tax Income M  ......  Subscription required
EBIT M  ......  Subscription required  ......  Subscription required  ......  Subscription required -12.5  AUD
EBITDA M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 30.2  AUD
Operating Cash Flow M  ......  Subscription required
Subscription required - Subscription is required


Water Supply
Source: Subscription required

- subscription is required.


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 13, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 13, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 13, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 13, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 13, 2023
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2022
Subscription required 2021
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2023
Annual Report 2022
Corporate Presentation 2022
Corporate Presentation 2022
Half-year Report 2022
Other 2022
Quarterly Report 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Environmental Assessment 2018
Annual Report 2017
Press Release 2017
Subscription required - Subscription is required.

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2023 MDO Data Online Inc.