MINING FLOW SHEET FOR THE SILVER MINERALIZATION AT SIERRA MOJADA
A summary of the mining flow sheet for the silver mineralization at Sierra Mojada is shown below. The metallurgical results reported in this news release refer to the "VAT leach" - "Merrill Crowe" - "SART" steps of the diagram below. The products produced at the various steps are shown on the right hand side of the diagram.
To view Figure 2, please visit the following link: http://media3.marketwire.com/docs/svb702-F2.pdf.
TESTWORK ON THE LEAD
Floatation testwork on the lead mineralization is currently underway. With over 537 million pounds of contained lead metal, the lead has the potential to provide significant upside to the project. The ore containing the lead mineralization will already have been milled and will only need to be passed through a floatation cell either prior to vat leaching or after vat leaching on the way to the tailings dam.
Tim Barry, President, CEO and director of Silver Bull states, "We are extremely pleased with the results of the metallurgical program. Work going forward on the metallurgy will now focus on optimizing and improving the silver and low grade zinc recoveries at various steps along the process, and examining the potential to extract more value from lead and zinc. By unlocking the metallurgy we have taken another major step forward in development of one of the largest undeveloped silver resources in Mexico. The next step for the company is a Preliminary Economic Assessment which we expect to have out to the market in the third quarter of this year."
THE NEXT STEPS GOING FORWARD
-- Cyanide leach tests will continue on the silver, low-grade zinc and copper ore to optimize recovery and leach time. Drivers to improve recovery will include stronger cyanide solutions, grind size of the ore, and leaching residence times.-- Floatation tests on the lead mineralization.-- Floatation tests are also underway on the "high grade" zinc (greater than 8%) mineralization which sits underneath the silver mineralization at the eastern end of the deposit.
About Silver Bull: Silver Bull is a well funded US registered mineral exploration company listed on both the NYSE MKT and TSX stock exchanges and based out of Vancouver, Canada. The flag ship "Sierra Mojada" project is located 150 kilometers north of the city of Torreon in Coahuila, Mexico, and is highly prospective for silver and zinc. Silver Bull also has 2 mineral licenses in Gabon, Central Africa, which are prospective for gold, manganese, and iron ore.
The technical information of this news release has been reviewed and approved by William J. Pennstrom, Jr., a qualified person for the purposes of National Instrument 43-101. Mr. Pennstrom, a consulting process engineer and President of Pennstrom Consulting, Inc. has acted as the Qualified Person, as defined by NI 43-101, for evaluation of the metallurgical testing data. He has over 30 years of experience in mineral process design and operation, and has been an independent process and metallurgical consultant for the mining industry for the last 12 years. He is a Registered Member of the Society of Mining, Metallurgy and Exploration (SME Member No. 2503900). Mr. Pennstrom and Pennstrom Consulting Inc. are both independent of the Company under NI 43-101.
On behalf of the Board of Directors
Tim Barry, MAusIMM, Chief Executive Officer, President and Director