Endeavour Mining Investor Presentation Deck
★
AREA
Geo-
metallurgical
Processing
Tailings
SABODALA-MASSAWA EXPANSION
Scope changes in DFS compared to PFS
Infrastructure
Construction
management
DESCRIPTION OF CHANGE
Additional geometallurgical work has reclassified
fresh and transitional ore from the Massawa
Central Zone and Massawa North Zone as more
amenable to processing through the refractory
plant adding an additional 3.8Mt at 2.02g/t gold
for 248koz into the refractory ore reserves
Addition of a standalone ROM pad and crusher
Addition of a surge bin
MINING
Improves mining efficiency due to lower need for selective
mining.
Improves overall recoveries and provides supplemental ore
feed into the BIOX® plant.
Reduces the risk of cross-contamination and improves
blending optionality
Improves capacity when processing softer ore and provides a
supplemental feed to cover crusher outages
Addition of a gravity circuit within the milling Improves recoveries from the high-grade ores containing free-
circuit
milling gold
Addition of a flotation cleaner circuit
Controls the sulphur and carbonate grades in the concentrate
and manages acid consumption in the BIOX® circuit
Reduced BIOX® reactors and reduced associated blower air
and cooling requirements reduced the upfront cost of the
BIOX® circuit component
Reduced the number of BIOX® reactors from nine
to seven following further metallurgical tests
which showed lower sulphur content for the
Massawa Central Zone and North Zone deposits
Addition of a separate high-density polyethylene
("HDPE") fully lined tailings storage facility ("TSF
1B") into the initial scope which will host the
neutralised product and the BIOX® CIL tailings
while the existing tailings storage facility ("TSF 1")
will host the flotation tailings
18MW expansion of the existing HFO power
plant, adding three 6MW HFO generators and two
back up diesel generators, with the option to add-
in solar to the infrastructure in the future
Additional infrastructure including roads, water
and administrative buildings
Endeavour managed EPCM compared
contracted 3rd-party
ENDEAVOUR
EXPECTED RESULT
Removes risk associated with blending transitional and fresh
ore with oxide ore into the CIL circuit.
to
Allows the clean supernatant water from TSF 1 to be
recirculated into either processing plant without treatment
De-risks power supply by increasing the capacity of the
existing power plant by 50% to ensure sufficient power supply
and back-up supply to maintain stable conditions for the
BIOX® reactors
Improves access and infrastructure at the Massawa Central
Zone and Massawa North Zone pits
Allows for flexibility in defining scope, contractor selection and
procurement ensuring that the projects' team leverages off
the existing operation
Capital cost estimates
Treatment Plant
Reagents and Services
Infrastructure
Construction Distributables
SUBTOTAL
Management Costs
Owners Project Costs
TOTAL
CAPITAL
COSTS, $M
106
35
55
27
223
33
34
290
Capital cost bridge (PFS vs DFS)
PFS CAPEX (as published by Teranga)
Scope changes and other
Inflationary impact of steel and concrete
Savings
Import and other taxes (excluded from PFS)
Foreign exchange change
DFS CAPEX
CAPITAL
COSTS, $M
219
+37
+33
(7)
+5
+3
290
52View entire presentation