Introduction
Tanzania is an economically sound country with a rich history of mining, and has recently been named one of the top destinations for mining investments.
GAM is currently engaged in the exploration of its first deposit located in Tanzania, a substantial graphite reserve within a secure and stable jurisdiction. The capital raised will be directed towards activities such as sampling, mapping, drilling, and test work to further assess the potential of this deposit.
Quick facts
- Prospecting licenses acquired: 4 totaling 140Km2
- Graphite potential: approximately 100Mt
- Current work within 2 of the 4 prospecting licenses
- Previous work done results indicate average total graphite carbon (TGC) ~12.5%
- Proximity to excellent infrastructure: road, railway and hydro-electric power all within 35km of project
- Replicate samples taken for metallurgical test work in Germany and South Africa (results indicate TGC% ranging from 10% to highs of 19%)
- Flake size distribution ~ 50% coarse vs 50% fine flakes
About the Morogoro Graphite Project
The Morogoro Graphite project is located approximately 25kms away from the Morogoro town, Tanzania, and is connected to the capital Dar es Salaam by a 240km sealed highway. This project consists of 4 graphite prospecting licenses measuring a total of 142 graphite rich square kilometres, of which Green Africa Minerals is a 100% owner. The graphite potential of the project is approximately 100Mt, and there is currently work being conducted on 2 of the 4 prospecting licenses
Geology & exploration
The foundation of our Morogoro Graphite mines lies in the profound understanding of geological formations. Our geologists have meticulously analysed the geological characteristics of the four Morogoro sites to identify potential graphite-rich deposits.
The tenements constitute integral components of graphite units spanning several kilometers, as mapped out by the Geological Survey of Tanzania. In a previous phase, the area measuring over 1km by 400m was thoroughly mapped and sampled by the previous owners. A total of 18 grab samples were extracted and sent to laboratories for comprehensive test work analysis. The outcomes of this testing revealed notably high grades, with an average total graphite carbon (TGC) content of 12.14% and peak values reaching 19.6% TGC.
It’s worth noting that the sampling activities were conducted over a relatively small portion of the two prospecting licenses (2PLs), leaving substantial areas within these licenses unexplored. This underscores the potential for further exploration and discovery within the uncharted territories of the prospecting licenses.
As of late, we have been examining a further 30 grab samples extracted from various locations sampled by previous owners. These grab samples have been sent to laboratories in Tanzania, South Africa and Germany for further analysis. The results we received from all three laboratories confirm the average grades received by the previous owners. Further to this, the South African laboratory has carried out substantial flake distribution work and analysis on the various samples for future deliberation.
Current exploration entails mapping and grab sampling so graphite zones can be mapped and structural information can be collected to guide drilling. To date,three major lithological units have been mapped: Graphite Schist (which hosts the graphite mineralization), Gneiss and Graphitic Gneiss. Outcrops generally have a NW strike and dip steeply to the NE.
Three broad graphite zones mapped on PL12473/2023 where replicate sampling was carried out and outcrops with visual graphite flake sizes of >1mm and high TGC% were sampled.
Drilling program
A drilling program comprising 35 holes (totaling 5,000m) will be phased over three cycles.
These cycles are made up of:
- Phase 1: 1,000m (10 holes)
- Phase 2: 2,000m (15 holes)
- Phase 3: 2,000m (15 holes)
Drilling will be along three fences initially on a 200m x 200m grid and infilled at 100m x 100m. The drilling contract has been adjudicated and awarded to local contractor who is awaiting mobilization.
A Light Detection and Ranging (LIDAR) geophysics survey is being considered to speed up on target identification. LIDAR is a remote sensing method applied in structural geology. It enables monitoring and characterisation of rock bodies. This method’s typical use is to acquire high resolution structural and deformational data for identifying geological hazards risk, such as assessing rockfall risks or studying pre-earthquake deformation signs.
Interpretation, resource estimation, modelling and reporting are planned to be completed by end of Q2 2024.
Metallurgical testwork results
Approximately 1kg sample sent to Mintek (SA) for determination of graphite content and flake distribution analysis.
Project timeline
| Milestone | Completion Target | Comments |
| Inferred Resource | H1 2024 | JORC Classification: Inferred and Potential Resource |
| PEA/Pre-feasibilty Study | H1 2025 | Indicated and Inferred Resource (Mineral Inventory) |
| Feasibility Study | H1 2026 | Inferred and Indicated Resources/Proven and Probable Reserves |
| Mining License Application | H2 2026 | |
| Project Financing | H1 2027 | |
| Project Construction | H2 2027 | |
| First Production | H2 2028 |
ESG in action
Green Africa Minerals has an integrated focus on the management of ESG with all our exploration activities adhering to strict environmental standards, minimizing ecological impact and preserving the delicate balance of the ecosystems in which we operate.
We plan to maintain a minimal footprint and minimize our carbon footprint during the exploration phase and a baseline assessment is planned to further understand the characteristics of the project area.
An ESG Coordinator has been appointed ahead of the drilling phase of the Morogoro project to focus on broad based community and stakeholder engagements.
