The Toroparu Gold-Copper Deposit was discovered in 2007 in the Republic of Guyana, South America. As stated in the NI 43-101 Technical Report titled "Prefeasibility Study Toroparu Gold Project Upper Puruni River Area, Guyana" dated May 24, 2013, the Toroparu project has Proven and Probable mineral reserve of 4.1 million ounces of gold contained in 127 million tonnes of ore at a grade of 1.00 g/t Au. Estimated annual production is 246,000 ounces of gold at a mill head grade of 1.32 g/t produced at a cash cost of $504 per payable ounce of gold on average over the first four years and 228,000 ounces at a cash cost of $700 per ounce on average over the 16 year life of mine. [ 1 ]About Silver Wheaton Silver Wheaton is the largest precious metals streaming company in the world. Based upon its current agreements, forecast 2013 attributable production is approximately 33.5 million silver equivalent ounces [ 2 ], including 145,000 ounces of gold. By 2017, annual attributable production is anticipated to increase significantly to approximately 42.5 million silver equivalent ounces [ 2 ], including 210,000 ounces of gold. This growth is driven by the Company's portfolio of low-cost and long-life assets, including precious metal and gold streams on Hudbay's Constancia project and Vale's Salobo and Sudbury mines. _________________________________ [ 1 ] Based on NI 43-101 Technical Report titled "Prefeasibility Study Toroparu Gold Project Upper Puruni River Area, Guyana" dated May 24, 2013. [ 2 ] Silver equivalent production forecast assumes a gold/silver ratio of 53.3:1. Production guidance was updated in Silver Wheaton's November 5, 2013 news release. Silver Wheaton's Reserves and Resources for Toroparu Gold Project: ATTRIBUTABLE RESERVES & RESOURCES TO SILVER WHEATON ([1 ],[ 2 ],[ 3 ],[ 4 ],[ 5 ],[ 6 ],[ 8 ],[ 9 ],[ 10 ] )
Process Mine Category Tonnage Grade Contained Recovery Mt Au g/t Au Moz % Toroparu (10%) Proven 3.0 1.10 0.105 89% Probable 9.7 0.98 0.306 89% Proven & Probable 12.7 1.00 0.411 89% Toroparu (10%) Measured 0.9 0.87 0.026 Indicated 7.9 0.83 0.211 Measured & Indicated 8.8 0.84 0.237 Toroparu (10%) Inferred 13.0 0.74 0.309
- All Mineral Reserves and Mineral Resources have been calculated in accordance with the CIM Standards and NI 43-101, or the AusIMM JORC equivalent.
- Mineral Reserves and Mineral Resources are reported above in millions of metric tonnes ("Mt"), grams per metric tonne ("g/t") and millions of ounces ("Moz").
- The individual qualified persons ("QPs"), as defined by the NI 43-101, for the technical information contained in this document (including the Mineral Reserve and Mineral Resource estimates) are Neil Burns, M.Sc., P.Geo. (Vice President, Technical Services); Samuel Mah, M.A.Sc., P.Eng. (Senior Director, Project Evaluations), both employees of the Company (the "Company's QPs").
- The Mineral Resources reported in the above tables are exclusive of Mineral Reserves. The tabulation of exclusive resources was completed by the Company's QPs.
- Mineral Resources which are not Mineral Reserves do not have demonstrated economic viability.
- Mineral Reserves and Mineral Resources are based on information available to the Company as of the date of this document, and therefore will not reflect updates, if any after such date. Resources and Reserves for Toroparu are reported as of March 31, 2013.
- Process recoveries are the percentages of gold in a saleable product (doré or concentrate) recovered from Toroparu ore at the applicable site process plant.
- Mineral Reserves are estimated using appropriate process recovery rates and gold prices of $1,070 per ounce for fresh rock and $970 per ounce for saprolite.
- Mineral Resources are estimated using appropriate process recovery rates and a gold price of $1,350 per ounce.
- The scientific and technical information in this document regarding Toroparu has been previously disclosed in Sandspring's press release filed on SEDAR ( http://www.sedar.com) dated April 9, 2013.