South Star Mining Provides Update on its Advanced Testing
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NEWS RELEASE
South Star Mining Provides Update on its Advanced Testing
Program with Urbix Resources
September 23, 2019 – Vancouver, B.C. - South Star Mining Corp. (“South Star” o r t h e
“Company”) (TSXV: STS) (OTCQB: STSBF) is pleased to provide an update for the advanced
testing program on concentrates from its Santa Cruz Graphite Project located in the state of Bahia,
Brazil. The test work is being carried out by Urbix Resources, LLC (“Urbix”) at its cutting-edge
R&D facility in Mesa, Arizona and incorporates Urbix’s advanced purification and exfoliation
technologies.
Last year, the Company submitted four different flake-size conc entrates, previously produced
during the Company’s pilot plant program, to Urbix for advanced testing. Phase 1 wa s a detailed
characterization of each sample, including QEMSCAN, XRay Diffra ction, Raman Spectroscopy
and SEM among others. The result s indicated a very high-qualit y graphite with minimum
impurities and excellent suitability for further purification a nd value-added processing. The
Second Phase has been focused on determining the ideal parameters for utilizing Urbix’s low-cost
and environmentally friendly purification methodologies to achi e v e b e s t r e s u l t s . A D e s i g n o f
Experiment (“DoE”) protocol with four key variables (time, temperature, chemical and reagent
ratio) was developed based on a Six Sigma approach.
A total of 17 individual purification runs were conducted with results quantified by both % Loss
on Ignition Carbon and Change in Burn Rate (dM%/dT) measurement s. With the DoE results
now in hand, the best combination of variables has been determined and samples from each of the
four concentrates (+50#, +80#, +140# and -140#) will be tested utilizing the optimum purification
procedure. Dr. Palash Gangopadhyay, CTO of Urbix, stated “We are thrilled to have completed a
key step in the purification process optimization with South St ar flakes and are happy to report
that with an optimized batch time of only 20 minutes, it is possible to produce up to 16,000 metric
tonnes a year of 99.9%+ pure +50 mesh flake in URBIXs commercia l production-sized reactor
currently in construction. This is extremely encouraging for the massively growing expanded and
expandable graphite market. Once purified, crytallinity and fl ake morphology of the Santa Cruz
graphite make them ideal candidates for lithium ion battery app lications.” Final results from the
four runs, along with the expandability characterization of one of the purified samples, will be
available in the coming weeks. In addition, one of the Santa Cruz samples has also qualified under
part of a US Department of Energy sponsored initiative at Urbix and these results continue to
confirm its potential use for nuclear grade graphite.
Company CEO Richard Pearce stated “The results from this independent testing with Urbix
supports our conviction that graphite potentially produced from Santa Cruz will be conducive for
use in many new and exciting high-tech growth areas including l ithium ion batteries. It also
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX
Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
confirms that our production will be very similar to the high-q uality flake graphite that has been
continuously produced from this region in Brazil for over 70 years.”
ABOUT SOUTH STAR MINING CORP.
South Star Mining Corp. is focused on the selective acquisition and development of near-term
mine production projects in Brazil to maximize shareholder value. STS has an experienced
executive team with a strong history of discovering, developing, building and operating
profitable mines in Brazil.
The Santa Cruz Graphite Project is located in Southern Bahia in the third largest graphite
producing region in the world with over 70 years of continuous mining. The Project has at
surface mineralization in friable materials, and successful large-scale pilot plant testing (>30t)
has been completed. The results of the testing show approximately 65% of Cg concentrate is
+80 mesh with good recoveries and 95-99% Cg.
To learn more, please visit the Company website at www.southstarmining.ca.
ABOUT URBIX RESOURCES, LLC
Urbix Resources, LLC is an advanced natural graphite processor with expertise ranging across
low-cost environmentally friendly graphite purification, nuclea r graphite, graphene, and other
advanced carbon derivatives. Urbix is also an expert in li-ion battery cell design and boasts next
generation high voltage electrolyte and fast charging electrode nanoarchitecture.
On behalf of the Board,
Mr. Richard Pearce
Chief Executive Officer
Ph: +1 (314)266-0793 (US)
Ph: +55 (11) 2308-6839 (Brazil)
Email: [email protected]
For additional information, please contact:
Mr. Dave McMillan
Chairman
Ph: +1 (778) 773-4560
Email: [email protected]
Mr. Eric Allison
Director
Ph: +1 203 918-3098
Email: [email protected]
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX
Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
CAUTIONARY STATEMENT
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined
in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy
of this press release.
This news release and the PEA contain refere nces to inferred resources. The PEA is
preliminary in nature and includes inferred mineral resources that are considered too
speculative geologically to have the economic considerations applied to them that would enable
them to be categorized as mineral reserves. There is no certainty that the PEA will be realized.
Forward-Looking Information
This news release contains "forward-looking information" within the meaning of applicable
securities laws. Generally, any statements t hat are not historical facts may contain forward-
looking information, and forward-looking informati on can be identified by the use of forward-
looking terminology such as "plans", "expects " or "does not expect", "is expected", "budget",
"scheduled", "estimates", "forecasts", "intends ", "anticipates" or "does not anticipate", or
"believes", or variations of such words and phrases or indicates that certain actions, events or
results "may", "could", "would", "might" or "will be" taken, "occur" or "be achieved". Although
the Company believes in light of the experience of its officers and directors, current conditions
and expected future developments and other factors that have been considered appropriate, that
the expectations reflected in th is forward-looking information are reasonable, undue reliance
should not be placed on them because the Company can give no assurance that they will prove to
be correct. Readers are cautioned to not plac e undue reliance on forward-looking information.
Actual results and developments may differ materially from those contemplated by these
statements.