Triton Minerals may in the near future be one of the
hottest graphite investments in Africa. Full-scale construction at its 100%
owned, Mozambique-based Ancuabe graphite project is scheduled to start in April
2020. This will unlock a large flake, high purity deposit that will benefit
from the imminent shortfall in Chinese production of expandable graphite
material, MD Peter Canterbury tells Laura Cornish.
“Shandong is historically the only large-flake
graphite producer in China and is expected to see significant drops in graphite
production as their assets age and mines are closed due to environmental
impacts which the government are looking to reduce,” Canterbury explains.
As such, Triton Minerals has already secured off-take
agreements for 52% of its production with companies in the Chinese Province.
Ancuabe will at full capacity produce 60 000 tpa of
graphite material, which may seem small but is in fact on the larger size of
graphite production Canterbury confirms. At this rate, the mine will operate
for 28 years although the MD notes there is a substantial 49 Mt resource which
once converted could either ramp up the facility’s operating rate or
drastically increase the project’s lifespan. The deposits (there are two that
will be mined for now) have a 6.6% total contained graphite (TCG) content –
which although not the highest is still significant, especially when taking the
unchallenging mineralogy and geological setting into account.
“Importantly, we have determined a four-year payback
on the project and a 37% IRR,” Canterbury highlights. With the project fully
permitted and the necessary investment in place, Triton Minerals is set to move
into full-scale construction on the project in April 2020 (onsite early works
had previously commenced). “We have planned for a 15-month construction period
which will take us to July 2021 to produce our first graphite.” Diversified
Chinese state-owned enterprise MCC International is the appointed EPC
contractor, and will be supported by an owner’s team from South Africa-based
Lycopodium ADP. MCC International is based in Beijing with business units
spanning natural resources, manufacturing, equipment fabrication and real
estate. In 2015, the company merged into China Minmetals to become China’s largest
mining company. The group has a number of complementary proficiencies including
engineering and civil construction. In addition, MCC has strong relationships
with major Chinese banks and has introduced Triton Minerals to potential
financiers, one of whom has provided a loan facility which will fund up to 85%
of the EPC contract at competitive concessional rates. Through the EPC tender
process, Triton Minerals was able to flag potential pre-production capex
savings of 10 to 15% on the US$99.4 million DFS estimate to around $85 million.
Returning to the project itself, Canterbury explains
that Ancuabe will comprise two pits – the T16 deposit and then later on the T12
deposit – situated just 3 km apart. “With our graphite situated no deeper than
130 m, the deposits will be open cut, drill and blast operations. The material
will be transported to a ROM pad which will be followed by three crushing
stages after which it will be moved into a temporary holding bin, ready for
processing.” A 1 Mtpa mill will start the process after which flotation and up
to four stages of cleaning (vertical attrition, separation of large flakes)
will take place. Waste thickening will follow after a filtration circuit. The
filtered material will be kiln dried and then bagged into three or four
different size fractions in 1 m³ bags which will be transported from site to
the port to be containerised and shipped.

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