Metallurgical report completed for Strieborna mine, metallurgical process outlined

    VANCOUVER, June 13 /CNW/ - Global Minerals Ltd.
(TSXV:CTG,FRANKFURT:DFP,OTC:GMLFF.PK) has received the preliminary
metallurgical report for its Strieborna silver/copper/antimony project by Eur
Ing Dr. Corby Anderson, director and principal process engineer of the Center
for Advanced Mineral & Metallurgical Processing, Montana Tech, University of
Montana. Dr. Anderson was the mineral processing engineer of Sunshine Mining
and Refining Co., which carried out extensive metallurgical tests on
concentrates from Strieborna in the mid - 1990s.
    Measures and Indicated Resources calculated by AMC Consultants in their
NI-43-101 Report are shown in the table below. Note: Filed on Sedar April 23,

                              MINERAL RE

SOURCES ------------------------------------------------------------------------- Resource Quantity Horizontal Ag Cu Sb Fe Category Width ------------------------------------------------------------------------- mt m g/t % % % ------------------------------------------------------------------------- Measured 215,000 5.8 468 2.2 1.4 20.6 ------------------------------------------------------------------------- Indicated 1,710,000 3.4 202 1 0.6 33.2 ------------------------------------------------------------------------- The design for a 500 - tonnage per day flotation mill was detailed. Based on previous metallurgical tests on representative vein material, recovery rates between 90 to 95 per cent from Ag and Cu bearing tetrahedrite are anticipated. The plant could produce approximately 40 to 50 tonnes of concentrate per day, grading 25 to 30 percent copper, 4,000 to 5,000 grams per tonne silver, 5 to 10g/tonne gold, 15 to 20 percent antimony and 0.75 to 1 percent mercury. The report further recommends that the flotation concentrate be treated for selective removal of antimony, arsenic and mercury using an alkaline sulphide hydrometallurgical process, which has been in use for over 50 years. Antimony metal or value-added antimony products could also be produced, with arsenic being precipitated and stabilized as a polymeric solid. Any gold in the concentrate could also be recovered using this process, thus avoiding the use of cyanide. Additionally, value-added byproducts such as sodium sulphate, caustic, sulphuric acid or ammonium sulphate fertilizer may also be produced from this process as desired. President and Chief Executive Officer George Heard commented, "We are delighted to have confirmed what management has believed all along - that a proven metallurgical process in use for over 50 years can recover the silver, copper and antimony from Strieborna ores - while at the same time stabilizing any potentially harmful substances." Additional metallurgical studies will be completed over the summer with view to optimization and improving the concentration ratio. Higher quantities of metal in concentrate (ie. more metal less waste) will reduce the amount of material requiring hydrometallurgy thus generating sizeable savings in both capital and operating costs. Current capital and operating cost estimates for the mill are being reviewed and should be available July 2008. As per the recommendations by AMC Consultants of Australia, the author of the Strieborna Silver Vein NI 43-101 Technical Report, Global Minerals is proceeding with scoping and pre-feasability studies for the combined mining and processing of ore from the Strieborna project. The company also wishes to advise its shareholders that in view of now having a completed NI 43-101 Technical Report completed on the Strieborna Project, it intends to review all reasonable options in order to maximize and/or enhance shareholder value. These options may include the company developing the project on its own, entering into a joint venture with a capable third party, or selling the Strieborna Project to a qualified medium sized or large company. About Global Minerals Ltd. Global Minerals is a Canadian-based company with focus on the acquisition, exploration and development of mineral property interests in geopolitically safe countries. George W. Heard, BSc, MBA, Peng, President and CEO of Global Minerals Ltd., a qualified person in accordance with National Instrument 43-101 Standards Of Disclosure for Mineral Projects, prepared this news release. Global Minerals Ltd. "George W. Heard" George W. Heard President and CEO The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy of this news release.

For further information:

For further information: About Global, Visit, or
contact investor relations, Derek Sutherland, at (778) 786-1531, or email

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