U.S.A. 06784 Toronto, Ontario
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CONNECTICUT OFFICE: TORONTO OFFICE:
PO Box 577 Bay Adelaide Centre,
East Tower
Sherman, CT 22 Adelaide Street West,
Suite 3400
U.S.A. 06784 Toronto, Ontario
Phone: 1.844.364.1830 Canada M5H 4E3
Fax : 1.860.799.0350 Toll Free:
1.844.364.1830
www.tanzanianroyalty.com
Pathway Towards Commercial Gold Production
Tanzanian Royalty’s recently re leased Mine Feasibility Study
(MFS) defines 1.064 million ounc es of open pit minable gold,
and initiates discussion on development of the underground
Mine potential.
FOR IMMEDIATE RELEASE TORONTO, ONTARIO – July 13, 2017
Tanzanian Royalty Exploration (“TRX” or the “Company”) (NYSE: TRX) (TSX: TNX)
is providing an update to its shareholders , discussing the findings of its recently
completed Mining Feasibility Study ("MFS" or the "Study") on its JV-owned Buckreef
Gold Mine Project (the "Pro ject"). The Study was led by an external consultant team
from MaSS Resources Ltd. of Tanzania, with technical support prov ided by an internal
team and combined previous published Pr eliminary Economic Assessment study results
by Venymn of South Africa, as well as other historical feas ibility studies conducted over
the years on this historic deposit. The Buckreef project is in the Geita District in Lake
Victoria Greenstone Belt in central Tanzania, East Africa. The full study can be found on
the home page of the Company’s website: www.tanzanianroyalty.com
“We want to take this opportunity to inform our loyal investors of not only the next steps
towards mining production but also direct their attention to th e discussion of the
underground potential of Buckreef.," stated Jeffrey Duval, Acting Chief Executive
Officer of TRX. We have included a sma ll portion of the underground discussion in this
release and are excited with the potential that our last the deep drilling program
uncovered. The results mirrored favorably with the historical records from the old
Buckreef underground workings
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“As you can see in the slide above, the underground mineralisation extends several
hundred meters below the bottom of the open p it mine and the drill hole is open in all
directions. It is this feature that has us most excited for the future.”
“We are also pleased to have achieved third-party validation of the tremendous economic
potential for the open pit portion of the Buckreef Project.
“The Company maintains a 55% economic interest in the Buckreef project, which infers a
55% interest in the 1.064 million ounces of gold reserves at Buckreef, which has been
validated by independent consultants. When one compares our current stock price levels
to the Company’s economic interests at Buck reef, measured at gold prices levels
throughout the last several years, our stock pr ice is trading at significantly discounted
levels.
"The Study results reflect the continued refinement of pit optimized mining reserves,
mine production schedule, process plant ore feed schedule and financial projections &
analysis based on comprehensive cost estimations for process plant (design, fabrication,
construction and operation) and mining (equipment purchase and mine production) on the
Buckreef Project.
The Company has begun active negotiations to complete financing on a straight loan
basis. This will ensure that we have the n ecessary capital to complete the reconditioning
and construction of new modules for our modern Gravity/CIL plant. We have brought in a
team of experts with decades of experience in building and maintaining these types of
plants. We have the utmost confidence in their ability to complete the project under
budget and ahead of schedule. Importantly, th is Gravity/CIL plant will allow us to run
pay dirt at an efficiency rate of 90% or hi gher in the recovery of gold. We anticipate the
plant being built in approximately 8 months.
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The Company has successfully operated in Tanzania since 1992. The significant
experience of our technical team, as well as th e consultants in Tanzania contributes to the
integrity of the results. The soon-to-commence grade control drilling will be essential to
further refine the mineable reserves during the pre-stripping deve lopment plan, and in
advance of our process plant construction,” concluded Mr. Duval.
Highlights
Conventional open pit mining methods selected in pit designs.
Over LoM, a total of 17.49Mt of ore with a strip ratio of 8.1:1 will be mined.
Pre-existing stockpile (R OMPAD) ore totaling 119,726t grading 1.89g/t to be
used for process plant commissioning.
1.064Moz of gold to be mined over the life of the project.
Recoveries of 89% for primary ore and 93%for saprolite ore, utilizing a simple
EDS comminution, flotation and leaching pr ocess with gravity recovery circuit
for free Au component collection.
0.91Moz of gold will be produced over the life of the project.
Initial capital cost outlay estimated at US $32.5 Million with a Life of mine cost
over the three phases of US $59.6 milli on and sustaining capital, excluding
closure costs.
Cash operating costs of US $696/oz pr oduced equivalent US $35.95 per tonne
milled.
Generation of a positive NPV of US $243 m illion at a 5% discount rate and an
IRR of 53.7%
Major Assumptions
Gold price of US $1250/oz
Effective Tax Rate of 15.25%
Royalty Rate of 4.3%
Transport refining cost of $15.00/oz Au
Discount rate of 5%
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Mineral Resources and Reserves
The mineral resources and reserves of the Bu ckreef deposits were classified using logic
consistent with the CIM definitions referred to in National Instrument 43-101.
The mineral resource block model, which serv es as the basis of the Mineral Resources
and Mineral Reserves in the Study, were developed utilizing 3D lithology models. Table
1 summarizes the Mineral Resources for th e Buckreef project as of February 14,
2014. The mineral resource is reported at a 0.5 g/t Au cut-off grade.
Table 1 – Buckreef Mineral Resources
The pit optimization was produced using NP V Scheduler software which utilizes the
industry standard Lerchs Grossman algorithm for analysis. Updated cost and recovery
inputs in conjunction with new geotechnical parameters and ramp design from the
preliminary economic assessment study were incorporated in the final pit design process.
The base case US $1,100 gold shell was selected for the ultimate pit design. The final pit
contains approximately 17.5Mt of ore (sap rolite and primary), with 142Mt of waste
resulting in an overall strip ratio of 8:1.
Table 2 summarizes the Project Mineral Reserves effective as of April 27,
2017. Reserves were calculated using a US $1,100 per oz gold price and the
corresponding cut-off grade of 0.59 g/t for all ore categories.
Table 2 – Buckreef Mineral Reserves
Mining
The deposit is projected to be mined util izing owner-operated c onventional open pit
mining methods. Mining will be completed usi ng 5 meter benches in the saprolite zone
and 10 meter benches in the primary sulphide zone. Updated pit wall angle designs and
Tanzanian mining regulations were incorporated into the mine plan.
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The mine is estimated to produce sufficient or e to maintain an initial process plant feed
scheduled at 60tph (Yr1-Yr4) with upgrad es to 120tph (Yr5-Yr9) and 180tph (Yr10
onwards). Targeted ore production during commercial production is 1,500,000 tonnes per
year LOM. Stockpiling of ore over LOM will resu lt in surplus ore to be processed up to
Year 17.
Mineral Processing
The process design for the Buckreef Project is based on extensive metallurgical test-
work. Results from the work have established that high gold recoveri es can be achieved
with a conventional process of comminution (using the latest EDS system as a
replacement for the conventional ball & roller mill circuit), gravity concentrate, flotation
and flotation concentrate leaching circuit.
Buckreef project ores are projected to be treated at a rate of 1.5Mt per annum with
process plant capacity upgrades in Yr-5 and Yr-10. Overall recoveries from the flotation
and cyanide leach circuits are expected to be 89% and 93% for primary ore and saprolite
ore, respectively. Over the life of the mine an average of 53,534 oz Au per annum will be
produced as doré.
Project Economics
Cost estimates were developed to a feasib ility level of accuracy . Budget quotations for
mobile and plant equipment were obtained fr om international suppl iers. Unit rates for
material commodities (earthworks, concrete, and steel) in Tanzania were verified from
contractor and supplier quotations and based on current practice in Tanzania.
Construction and labor costs a pplicable for the region were bu ilt up from first principles
for salaries, burdens and overhead. Continge ncy was applied to each item based on the
source and accuracy of the estimate data, resu lting in an overall in itial contingency of
10%. The Project Capital Cost Summary is included in Table 3.
Table 3 – Project Capital Cost Summary
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Operating costs were also developed from first principles, inclusive of labor,
consumables, fleet maintenance and repair, and general and administration costs, and data
from current operations in Tanzania. The estimated Operating Cost is summarized in
Table 4.
Table 4 – Operating Cost Summary
The Project economic analysis has been carried out for a range of gold prices with $1,250
per ounce selected as the base case. The an alysis demonstrates that the Project is
expected to generate a positive NPV at a 5% discount rate of US $243 million and a
positive IRR of 53.7%. Sensitivity of the Project NPV and IRR to changing metallurgical
recovery or operating costs to fluctuations in gold price are illustrated in Figure 1 below.
Figure 1: Sensitivity Analysis
Gold price is very sensitive to project NPV . An increase in gold prices by 20% will result
in double the project NPV . Though a decrease in gold price has a negative impact on
project NPV , the project remains viable with a 30% decrease in Gold price
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Metallurgical recovery follows the same tre nd as gold price variations. A decrease in
recovery results into low project NPV . This is an important parameter to be monitored as
slight negative change in recovery has big impact on project profitability
The project is sensitive to OPEX. A decreas e in operating cost result into cash-flow
saving and hence increase in project NPV . While the base case demonstrates a positive
return at the Feasibility cap ital and operating costs, the chart demonstrates further
opportunities for improving the economics of the Project by investigating Capital and
Operating cost savings. TRX is confiden t that the capital and operating costs can be
further optimized, improving the value of the project.
Permitting
The SML renewal permitting process for the Buckreef Project continues to advance with
positive support of the local communities and government authorities of Geita
Municipality and Republic of Tanzania. Th e preparation of documents for the renewed
10-year permit was completed in October 201 6 and the offer letter confirming approval
and granting renewal of the SML was received in February 2017. The Environmental
Management Plan (EMP) was approved in October 2016. The original Environmental
Impact Assessment (EIA) cer tification was granted in October 2014, and encompassed
the mining, ore processing and support infrastructure.
Underground Mining Potential
Mining of the Buckreef open pit will commen ce in year 0 (pre-stripping). Production
from the underground can commence towards the end of current LOM of the open pit via
development of an access decline/ramp without leaving a crown pillar below the pit floor.
An accurate cutover point between open pit and underground can be calculated by
comparing the cost to mine one tonne of mineralized material considering waste
movement and development costs by both methods.
Underground Mineralization
The main Buckreef prospects are near surface deposits that are amenable to be mined by
open pit methods which in this project ar e assumed to extend to a depth of 150-200
meters below surface. This is an arbitrary cuto ff point and it is most likely that further
optimization of the mineralization through grad e control drilling woul d result in either
deeper or wider pits given the grades and vein thickness (Figure 13.15). The two vein
systems being considered are assumed to be robust in terms of con tinuity and thickness.
The extents of the zone are 300m long and 15m wide at depths below 150m. The dip is
assumed to be sub-vertical to vertical.
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Figure 0.1a Schematic Section of Mineralisation at Buckreef
One of the veins has already been mined in the past and openings extend down to 150m
from surface. Considerable caution would need to be exercised if mining near the old
workings as voids may not have been su rveyed correctly and ground conditions around
old workings are often unstable.
Figure 13.15b: Section view - West East Buckreef Main Pit
Ore body
Section: West -East