Market Price: $0.15

    Market Price: $0.12

November 9, 2010

Excelsior Mining Corp. (“Excelsior”) is pleased to announce that, subject to regulatory approval, Excelsior has engaged the services of Grandich Publications LLC to provide public and shareholder communications and marketing services.

Grandich Publications LLC provides corporate communications services to public and private companies in North America and specializes in the development and management of customized public relations and marketing programs. The principal of Grandich Publications LLC, Mr. Peter Grandich, is a long-standing member of The New York Society of Security Analysts and The Society of Quantitative Analysts and is the editor of The Grandich Letter, first published in 1984.

Under the terms of the agreement, Excelsior will pay Grandich Publications LLC a monthly fee of US$2,000 and will grant 150,000 incentive stock options to Peter Grandich, managing partner of Grandich Publications LLC. The options are exercisable at a price of CDN$0.60 each, with such options vesting over a twelve month period, and expiring on the 1st of November, 2015. The agreement is for an initial term of 12 months. The agreement is subject to regulatory approval and all terms are subject to and in accordance with the rules of the TSX Venture Exchange.

About Excelsior

Excelsior is an exploration and development company with a copper project located within the copper porphyry belt of Arizona. The Gunnison Copper Project is located close to the required infrastructure and with its in-situ recovery potential, is intended for near-term production. The Excelsior team consists of experienced professionals with proven track records of advancing projects towards production.

Further details about Excelsior can be found on Excelsior’s website at: http://www.excelsiormining.com/.


"Stephen Twyerould"

T: 604-681-8030
F: 604-681-8039

Information set forth in this news release may involve forward-looking statements under applicable securities laws. Forward-looking statements are statements that relate to future, not past, events. In this context, forward-looking statements often address expected future business and financial performance, and often contain words such as "anticipate", "believe", "plan", "estimate", "expect", and "intend", statements that an action or event "may", "might", "could", "should", or "will" be taken or occur, or other similar expressions. All statements, other than statements of historical fact, included herein including, without limitation; statements about the terms of the Transaction and final Exchange approval are forward-looking statements. By their nature, forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements, or other future events, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factors include, among others, the following risks: the need for additional financing; operational risks associated with mineral exploration; fluctuations in commodity prices; title matters; environmental liability claims and insurance; reliance on key personnel; the potential for conflicts of interest among certain officers, directors or promoters with certain other projects; the absence of dividends; competition; dilution; the volatility of our common share price and volume and the additional risks identified the management discussion and analysis section of our interim and most recent annual financial statement or other reports and filings with the TSX Venture Exchange and applicable Canadian securities regulations. Forward-looking statements are made based on management's beliefs, estimates and opinions on the date that statements are made and Excelsior undertakes no obligation to update forward-looking statements if these beliefs, estimates and opinions or other circumstances should change, except as required by applicable securities laws. Investors are cautioned against attributing undue certainty to forward-looking statements.

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.

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What is
In-Situ Mining