Gunnison Copper Corp.

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

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

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

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