Excelsior Mining Corp.: Successful Metallurgical Drill Program Concludes at Gunnison

VANCOUVER, BRITISH COLUMBIA--(Marketwired - Nov 5, 2014) - Excelsior Mining Corp. (TSX VENTURE:MIN)(FRANKFURT:3XS)(OTCQX:EXMGF) ("Excelsior" or the "Company") is pleased to announce that the metallurgical drill program has ended successfully at the Gunnison Copper Project in Arizona.

Ten (10) diamond-drill holes were completed totalling 5,899 feet of diamond drilling (11,306 feet in total drilling). Excelsior has submitted a total of 23 samples for metallurgical testing. The samples will be crushed and categorized by geologic factors; the tests are estimated to last 120 to 160 days based on separate leach cycles. Open cycle column leaching will include mature raffinate generated in previous column leach tests on ore from the North Star deposit or from the Johnson Camp mine which is adjacent to the North Star Deposit. Testing will be conducted by the independent laboratory, MAG (Minerals Advisory Group) of Tucson, Arizona under the supervision of Dr. Ronald J. Roman, an independent consultant who is a Qualified Person as defined by NI 43-101. Additional box leach and separate acid consumption tests will also be completed as part of the overall metallurgical program.

The results of these metallurgical tests will be used to determine copper extraction rates, acid consumption rates, and rinsing procedures and rates. Results will be used for both the permitting application process and the feasibility study.

For further information please see the Company's previous news release dated September 15, 2014 - "Excelsior Provides Details on Metallurgical Drill Program".

Commenting on this news, President & CEO, Stephen Twyerould stated, "Each metallurgical sample can weigh as much as 350 pounds; these are robust samples from which we will be able to gather feasibility-level data for the critical components that will drive our project: namely acid consumption and copper recovery rates. We fully expect that the results of this comprehensive metallurgical program will continue to support the potential for industry leading economics combined with environmental excellence."

About Excelsior

Excelsior is a mineral exploration and development company that is advancing the Gunnison Copper Project. The Excelsior management team consists of experienced professionals with proven track records of advancing mining projects into production. Further 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, Prefeasibility Study" dated February 14, 2014.

Dr. Stephen Twyerould, Fellow of AUSIMM, President and CEO of Excelsior, and a Qualified Person as defined by NI 43-101, has reviewed and approved the technical information disclosed in this news release.

For more information on Excelsior, please visit our website at www.excelsiormining.com.

ON BEHALF OF THE EXCELSIOR BOARD

Mark J. Morabito, Executive Chairman

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 details and expected results of the drill program; (ii) the robust economics of the Gunnison Project; (iii) details about acid consumption and copper recoveries; and (iv) the advancement of the Gunnison Project.

Such forward-looking information can be identified by the use of word "will". 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 exploration and development expenditures, the estimation of initial and sustaining capital requirements, the estimation of labour and operating costs, the availability of necessary financing and materials to continue to explore and develop the Gunnison Project in the short and long-term, the progress of exploration and development activities, the receipt of necessary regulatory approvals, the completion of the permitting process, 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 these 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 exploration and development 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 Project, risks relating to variations in mineral resources and reserves, grade or recovery rates resulting from current exploration and development activities, 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 and in the mining industry generally, risks related to current global financial conditions, uncertainties inherent in the 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 development process, regulatory risks, including risks relating to the acquisition of the necessary licenses and permits, financing, capitalization and liquidity risks, including the risk that the financing necessary to fund the exploration and development activities at the Gunnison Project may not be available on satisfactory terms, or at all, risks related to disputes concerning property titles and interest, environmental risks and the additional 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 differ 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.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release, and no securities regulatory authority has either approved or disapproved of the contents of this release.