Gunnison Copper Corp.

VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 08/30/11 -- Excelsior Mining Corp. (TSX VENTURE: MIN)(OTCQX: EXMGF)(FRANKFURT: 3XS) ('Excelsior') is pleased to announce that the initial hydrological and metallurgical tests on the Gunnison Copper Property are complete. Results are being compiled and will be released within the next several weeks once they are finalized. The Gunnison Property is located within the copper

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VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 07/19/11 -- Excelsior Mining Corp. (TSX VENTURE: MIN)(OTCQX: EXMGF)(FRANKFURT: 3XS) ('Excelsior') is pleased to announce a significant increase to the mineral resource estimate at the North Star Deposit. The oxide copper (Cu) mineral resource has increased from 2.86 billion pounds of Cu (404 million tons at 0.35% Cu) in the inferred category to an indicated copper resource

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VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 07/07/11 -- Excelsior Mining Corp. (TSX VENTURE: MIN)(OTCQX: EXMGF)(FRANKFURT: 3XS) ('Excelsior') is pleased to announce the final assay results from the 33,792 foot (10,300 meter) drill program on the Gunnison Copper Property located within the copper porphyry belt in southern Arizona. Highlights include:

VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 05/25/11 -- Excelsior Mining Corp. (TSX VENTURE: MIN)(OTCQX: EXMGF)(FRANKFURT: 3XS) ('Excelsior') is pleased to announce the commencement of the initial hydrological test work on the Gunnison Copper Property located within the copper porphyry belt in southern Arizona. The program has been designed to determine the permeability of the mineralization and to confirm previous

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VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 05/24/11 -- Excelsior Mining Corp. (TSX VENTURE: MIN)(OTCQX: EXMGF) ('Excelsior') is pleased to announce that it has today commenced trading on the OTC Market's prestigious tier, OTCQX International, under the symbol of EXMGF. Investors can find current financial disclosure and Real-Time Level 2 quotes for Excelsior on www.otcqx.com and www.otcmarkets.com.

VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 05/17/11 -- Excelsior Mining Corp. (TSX VENTURE: MIN)(FRANKFURT: 3XS) ('Excelsior') is pleased to announce additional assay results from the drill program on the Gunnison Copper Property located within the copper porphyry belt in southern Arizona. Highlights include:

VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 05/04/11 -- Excelsior Mining Corp. (TSX VENTURE: MIN)(FRANKFURT: 3XS) ('Excelsior') announces the appointment of JJ Jennex as Vice President, Corporate Affairs. Mr. Jennex will be responsible for all aspects of corporate communications with shareholders, media and all potential investors. Mr. Jennex has been active in both the junior resource industry and the international

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