Excelsior Mining Completes Production Wellfield Drilling
26427809.2
NEWS RELEASE
Excelsior Mining Completes Production Wellfield Drilling
September 12, 2019
Excelsior Mining Corp. (TSX: MIN) (FSE: 3XS) (OTCQX: EXMGF) ("Excelsior" or the “Company”)
confirms the successful completion of the drilling of the production wellfield at the Gunnison Copper
Project in southern Arizona. Excelsior remains on-schedule for first copper production in Q4 2019.
A total of 41 production wells have been successfully drilled. The depth of each well is approximately
1300 feet, and all wells are open within the copper ore body. Injection and recovery wells are interspaced
in an alternating and repeating pattern throughout the wellfield; spacing is approximately 70 feet from
each injection well to a recovery well. Installation of the necessary infrastructure and instrumentation,
including stainless steel pumps in the recovery wells, is expected to be completed in the coming weeks.
“We are rapidly closing in on the completion of the entire construction process,” commented Chief
Operating Officer, Roland Goodgame. “The most critical component of our construction schedule has
always been the drilling of the production wellfield; this key milestone has now been completed, thereby
allowing us to remain on-track for copper production later this year.”
Working in parallel to the drilling of the injection and recovery wells, 16 compliance and monitoring wells
surrounding the production wellfield have also been completed. Additionally, the primary header station,
which contains piping connections and the controls needed to monitor and adjust flow rates , has been
constructed and is now ready for commissioning.
About Excelsior Mining
Excelsior “The Copper Solution Company” is a mineral exploration and development company that is
advancing the Gunnison Copper Project in Cochise County, Arizona. The project is an advanced staged,
low cost, environmentally friendly in-situ recovery copper extraction project that is fully-permitted to 125
million pounds per year of copper cathode production. The Feasibility Study projected an after-tax NPV
of US$ 807 million and an IRR of 40% using a US$ 2.75 per pound copper price and a 7.5 % discount
rate.
Excelsior’s technical work on the Gunnison Copper Project is supervised by Stephen Twyerould, Fellow
of AUSIMM, President & CEO of Excelsior and a Qualified Person as defined by National Instrument 43-
101. Mr. Twyerould has reviewed and approved the technical information contained in this news release.
Additional information about the Gunnison Copper Project can be found in the technical report filed on
SEDAR at www.sedar.com entitled: “Gunnison Copper Project, NI 43-101 Technical Report, Feasibility
Study” dated effective December 17, 2016.
For more information on Excelsior, please visit our website at www.excelsiormining.com.
For further information regarding this press release, please contact:
26427809.2
2
Excelsior Mining Corp.
Concord Place, Suite 300, 2999 North 44th Street, Phoenix, AZ, 85018.
JJ Jennex, Vice President, Corporate Affairs
T: 604 723 1433
www.excelsiormining.com
Cautionary Note Regarding Forward-Looking Information
This news release contains "forward-looking information" concerning anticipated developments and events that may
occur in the future. Forward looking information contained in this news release includes, but is not limited to,
statements with respect to: (i) the results of the Feasibility Study, including operating and capital cost estimates and
the economic benefits from the Gunnison Copper Project ; (ii) the details of the various construction activities that
are being or will be undertaken on the Gunnison Copper Project and their timeline for completion; (iii) the schedule
for the commencement of commercial production; and (iv) the ability to mine the Gunnison Copper Project using in-
situ recovery mining techniques.
In certain cases, forward- looking information can be identified by the use of words such as "plans", "expects" or
"does not expect", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not anticipate",
or "believes", or variations of such words and phrases or state that certain actions, events or results "may", "could",
"would", "might" , "occur" or "be achieved" suggesting future outcomes, or other expectations, beliefs, plans,
objectives, assumptions, intentions or statements about future events or performance. Forward-looking information
contained in this news release is based on certain factors and assumptions regarding, among other things, the
estimation of mineral resources and mineral reserves, the realization of resource and reserve estimates, copper
and other metal prices, the timing and amount of future development expenditures, the estimation of initial and
sustaining capital requirements, the estimation of labour and operating costs, the progress of construction activities,
receipt of and compliance with necessary regulatory approvals, the estimation of insurance coverage, and
assumptions with respect to currency fluctuations, environmental risks, title disputes or claims, and other similar
matters. While the Company considers thes e assumptions to be reasonable based on information currently
available to it, they may prove to be incorrect.
Forward looking information involves known and unknown risks, uncertainties and other factors which may cause
the actual results, performance or achievements of the Company to be materially different from any future results,
performance or achievements expressed or implied by the forward- looking information. Such factors include risks
inherent in the construction of mineral deposits, including risks relating to changes in project parameters as plans
continue to be redefined including the possibility that mining operations may not commence at the Gunnison Copper
Project, risks relating to variations in mineral resources and reserves, grade or recovery rates, risks relating to the
ability to access infrastructure, risks relating to changes in copper and other commodity prices and the worldwide
demand for and supply of copper and related products, risks related to increased competition in the market for
copper and related products, risks related to current global financial conditions, uncertainties inherent in t he
estimation of mineral resources, access and supply risks, reliance on key personnel, operational risks inherent in
the conduct of mining activities, including the risk of accidents, labour disputes, increases in capital and operating
costs and the risk of delays or increased costs that might be encountered during the construction process, regulatory
risks, financing, capitalization and liquidity risks, risks related to disputes concerning property titles and interest,
environmental risks and the addition al risks identified in the “Risk Factors” section of the Company’s reports and
filings with applicable Canadian securities regulators.
Although the Company has attempted to identify important factors that could cause actual actions, events or results
to d iffer materially from those described in forward- looking information, there may be other factors that cause
actions, events or results not to be as anticipated, estimated or intended. Accordingly, readers should not place
undue reliance on forward-looking information. The forward-looking information is made as of the date of this news
release. Except as required by applicable securities laws, the Company does not undertake any obligation to
publicly update or revise any forward-looking information.