Preliminary Metallurgical Tests Result in over 80% Vanadium Extraction from Cornerstone Metals Inc.’s Carlin Vanadium Project
Preliminary Metallurgical Tests Result in over 80% Vanadium Extraction from Cornerstone Metals Inc.’s
Carlin Vanadium Project
May 29, 2018 ‐ Vancouver, British Columbia – Cornerstone Metals Inc. (TSX‐V: CCC) (OTCQB: CCCCF)
(FSE: 1PY) (“Cornerstone” or the “ Company”) is pleased to announce preliminary results of metallurgical
test work being conducted on its Carlin Vanadium Project in Nevada. The initial pressure leaching tests
have achieved vanadium extraction levels of between 80.2% and 83.6%.
“The Company is thrilled with these preliminary results, which signal a major technical breakthrough for
this project”, said Cornerstone President and Chief Executive O fficer Paul Cowley, “guided by expertise of
Cornerstone’s metallurgists and Sherritt Technologies, an industry recognized engineering and research
group with their in‐house lab. Regardless of these positive res ults, we are continuing test work to improve
upon the overall vanadium extraction from the current 80.2% to 83.6% to higher values.”
Test work is being conducted on a sample composite generated fr om an 18.9 metre drill core intercept
from the Company’s recent diamond drilling verification program. Metallurgical test work will continue
with the aim of developing a conceptual flowsheet.
M e t a l l u r g i c a l t e s t w o r k i s b e i n g c o n d u c t e d b y S h e r r i t t T e c h n o l ogies in Fort Saskatchewan, Alberta, the
leader in the development and co mmercialization of pressure hyd rometallurgical processes. Sherritt is a
one‐stop shop that has a proven track record of developing projects from concept‐to‐operation with a
skilled and experienced team, including process and equipment s pecialists.
The Carlin Vanadium deposit is considered one of the largest, h ighest grade primary vanadium deposits in
North America (USGS Professional Paper 1802 Critical Mineral Re sources of the United States—Economic
and Environmental Geology and Prospects for Future Supply dated December 18, 2017).
Vanadium’s Growing Importance for Steel Manufacturing and the Energy Sector
Vanadium is growing in importance for key industrial manufactur ing sectors most notably steel and
renewable energy. Today, more than 85 percent of the world’s va nadium is used in steel manufacturing
applications. Its importance to the energy sector is also growing rapidly with more than 10 percent of
vanadium production used in energy storage where its substantia l cost and performance benefits make it
an alternative choice to lithium ion in several areas. Vanadium pentoxide flake prices have risen over the
last 2.5 years from under US$3/lb to US$13.90/lb today.
About Cornerstone Metals Inc.
Cornerstone Metals has an option to earn a 100% interest in the Carlin Vanadium Project, located in Elko
County 22km by road (14 miles) from the town of Carlin, Nevada. T h e p r o j e c t i s c o m p r i s e d o f 7 2
contiguous unpatented mineral claims totaling 461 hectares (1,140 acres). The Carlin Vanadium Project
hosts the Carlin Vanadium Deposit which is flat to shallow dipping and at shallow depths, commonly
between 0‐60m (0‐200 ft) below surface.
ON BEHALF OF CORNERSTONE METALS INC.
per: "Paul Cowley"
CEO & President
(604) 340‐7711
Technical disclosure in this news release has been reviewed and approved by Paul Cowley, P.Geo., a
Qualified Person as defined by National Instrument 43‐101, and President and CEO of the Company.
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 release.
Forward‐looking information
Certain statements in this news release constitute "forward‐loo king" statements. These statements relate
to future events or the Company's future performance and include the Company’s ability to meet the
conditions required to exercise in full its option to acquire t he Carlin Vanadium project and with respect to
current and planned drill programs, the results of exploration programs, metallurgical test work, and
changes in mineral resources. All such statements involve subst antial known and unknown risks,
uncertainties and other factors which may cause the actual resu lts to vary from those expressed or implied
by such forward‐looking statements. Forward‐looking statements involve significant risks and
uncertainties, they should not be read as guarantees of future performance or results, and they will not
necessarily be accurate indications of whether or not such results will be achieved. Actual results could
differ materially from those anticipated due to a number of factors and risks. Although the forward‐
looking statements contained in this news release are based upon what management of the Company
believes are reasonable assumptions on the date of this news re lease, the Company cannot assure
investors that actual results will be consistent with these for ward‐looking statements. The forward‐looking
statements contained in this press release are made as of the d ate hereof and the Company disclaims any
intention or obligation to update or revise any forward‐looking statements whether as a result of new
information, future events or otherwise, except as required under applicable securities regulations.