prnews



TORONTO, Feb. 23, 2011 /PRNewswire/ - YAMANA GOLD INC. (TSX: YRI) (NYSE: AUY) (LSE: YAU) today announced its mineral reserves and mineral resources for the year ended December 31, 2010. The Company's total proven and probable mineral gold reserves increased by 4.5 million ounces to 22.1 million ounces, which represents a 26% increase over the previous year. Measured and indicated gold resources increased by 12% from 2009 to 14.5 million ounces. Silver and copper proven and probable mineral reserves increased by 3% and 9%, respectively.





HIGHLIGHTS:




- Total proven and probable gold equivalent(1) mineral reserves
increased to 25.1 million ounces, a 23% increase from 2009 and
includes:
- Total gold mineral reserves of 22.1 million ounces, an increase
of 26%
- Total silver mineral reserves of 167.3 million ounces, an increase
of 3%

- Total measured and indicated gold equivalent mineral resources
increased to 15.3 million ounces, an increase of 9% over 2009 and
includes:
- Total gold mineral resources of 14.5 million ounces, an increase
of 12%
- Total silver mineral resources of 46.0 million ounces, a decrease
of 23%

- Initial reserve estimate was declared at Jeronimo of over
1.6 million ounces (on a 100% ownership basis). A pre-feasibility
has recently been completed on Jeronimo with a feasibility expected
at the end of 2011

- Initial reserve estimate was declared at the Suruca gold area of
Chapada, which was previously announced, a feasibility study expected
by year end

- Jacobina's total mineral resources and grade increased significantly.
The Company will continue evaluating options to increase production.

- Pilar's mineral reserves to 1.4 million gold ounces, supporting
the Company's earlier decision to develop the project
with a 30% throughput increase for higher production levels






"Growth in mineral reserves and mineral resources became a key focus of this Company in the past year. An increased resource base allows us to consider production increases and longer mine life which will build further value in the Company," said Yamana's Chairman and Chief Executive Officer, Peter Marrone. "We have clearly demonstrated our ability to grow resources through the increases in the past and the significant increases this year. Our exploration budget for 2011 of $85 million is similar to last year's budget. Part of the focus of this year's program is to continue to show substantial growth in resources. We expect to deliver on our track record of doing so and of building sustainable and predictable production and growth by continuing our aggressive exploration program throughout 2011."


On a gold equivalent basis, and excluding Agua Rica, proven and probable reserves are 16.6 million gold equivalent ounces (GEO) for the year ending December 31, 2010, an increase of over 28% from 2009 at 13.0 million GEO. This is comprised of 15.6 million ounces of proven and probable gold reserves and 65.0 million ounces of proven and probable silver reserves. Proven and probable copper reserves were 12.2 billion pounds of copper, and excluding Agua Rica, would be 2.5 billion pounds. Reserves and resources were calculated based on a gold price of $900 per ounce, a silver price of $15.00 per ounce and a copper price of $2.50 per pound (except where noted).





Changes in gold equivalent mineral reserves are detailed below:




Proven and probable mineral reserves at (December 31, 2009) 20.4 M oz
Ounces mined during 2010 (1.3) M oz
Discovered ounces and converted resources during 2010 5.9 M oz
------------
Proven and probable mineral reserves - (December 31, 2010) 25.1 M oz






Measured and indicated gold equivalent resources excluding Agua Rica were 14.1 million ounces at the end of 2010, an increase of 19% from 2009. This includes gold resources of 13.6 million ounces and silver mineral resources of 27.8 million ounces when Agua Rica is excluded. Copper mineral resources for the year end were 3.1 billion pounds, a slight decline from 2009, excluding Agua Rica these resources would be 1.4 billion pounds.


In addition, inferred gold mineral resources declined slightly to 9.0 million ounces, silver inferred resources increased slightly to 97.8 million ounces and resources of copper declined to 5.2 billion pounds.





The most notable changes are detailed below:





Jeronimo, Chile


At the Company's Jeronimo deposit, the first mineral reserve estimate was declared of 1.6 million ounces, based on the pre-feasibility study recently completed, on a fully consolidated basis. Based on the Company's current ownership interest (57%), attributable mineral reserves are 0.93 million ounces. Approximately one third of the mineral reserves declared were a direct result of conversion from resources via infill drilling.




-------------------------------------------------------------------------
Contained oz
100% Tonnes (000's) Grade (g/t) (000's)
-------------------------------------------------------------------------
Probable Gold Reserves 12,825 3.95 1,628
-------------------------------------------------------------------------
Indicated Mineral Resources 1,456 3.54 165
-------------------------------------------------------------------------






The pre-feasibility (on 100% basis) contemplates:

- Approximately $310 million in pre-production capital
- 145,000 oz - approximate average annual production
- 185,000 oz - approximate average annual production for the first
four years
- 10 years of initial mine life
- Cash costs of approximately $550/oz
- Approximate cash costs for the first four years are expected to be
below $500/oz
- 4,200 tonnes per day throughput
- Recovery of approximately 85% based on pressure oxidation






The Company is evaluating other processing methods for better recoveries, which are anticipated to further optimize the project economics. The Company will also be incorporating the impact of credits from the sale of manganese which was not included in the pre-feasibility, as well as the positive impact of other off-take products. The resource remains open at depth and has potential to add significantly to resources.


Results of the evaluation of these different processing options and optimizations will be part of the feasibility study which is expected to be delivered at the end of 2011. The decision to proceed, after that time, will be based on continued positive results from a full feasibility and further consolidation of the ownership of Jeronimo, both of which are expected to occur.





Pilar, Brazil


Total proven and probable mineral reserves increased to 1.4 million ounces, this includes an initial reserve that was announced on August 4, 2010. Additional exploration drilling suggests that growth in mineral reserves and resources should continue in 2011.


The total mineral resources at Pilar do not include Caiamar, a deposit located 38 kilometres from Pilar which is being evaluated under various scenarios. The Pilar project, which is currently in development and expected to be in production in 2013, is already being built at capacity levels that are 30% higher than those contemplated in the feasibility study. This extra capacity demonstrates the confidence in the Company's ability to continue to develop this high quality resource base.





Jacobina, Brazil


Mineral reserves at Jacobina increased by 8% to 1.7 million ounces. Measured and indicated mineral resources also increased to 1.66 million ounces, a 16% increase over 2009. Of even greater significance, is the increase of 16% in mineral reserve grade, to 2.48 g/t and the 10% increase in resource grade. These grade increases will facilitate higher future production levels. The Company is currently evaluating options to increase plant capacity, which could further enhance production at Jacobina.





Chapada, Brazil


Early in January 2011, the Company announced the revised Chapada production life-of-mine plan that incorporated the new resources at Suruca, a satellite deposit located six kilometers from Chapada. These resources were part of the overall increase in mineral reserves of 45% to 3.1 million ounces. Mineral resources increased by close to 240% to 2.5 million ounces.


The additional reserves and resources at Chapada have already been worked into a revised production plan announced earlier this year that will result in production in excess of 140,000 ounces per year for the life of the mine at Chapada.


These significant increases to reserves and resource are a direct result of a well planned and executed exploration plan, which will be continued into 2011.





Gualcamayo, Argentina


In August 2010, the Company delivered an updated production plan for its Gualcamayo mine which included the additional mineral reserves and mineral resources discovered at its QDD Lower West deposit. This initial resource contributed to the 4% increase in reserves to 2.4 million ounces and a 16% increase in mineral resources, to 0.9 million ounces. Further development of the QDD Lower West zone is expected as part of the 2011 exploration program. Continued success at this deposit will make additional positive contributions to reserves and resources in 2011.





Fazenda Brasileiro, Brazil


Total mineral resources at Fazenda Brasileiro more than doubled to 472,000 ounces, while mineral reserves declined modestly. This increase in resources was attributable to an entirely new area of mineralization, CLX2, within the mining complex that was only recently discovered. Given the positive impact of this new discovery, the Company will be spending $5M in exploration at Fazenda Brasileiro in 2011, to further develop and define this resource.





El Penon, Chile


Total proven and probable mineral reserves at El Penon increased by 4% to 2.0 million ounces, due to the conversion of resources. Silver reserves and gold equivalent reserves declined slightly. However, gold reserve grade increased to 7.29 g/t from 7.05 g/t in 2009. The 2011 program will renew efforts on resource growth with a significant portion of the $15 million to be spent in areas expected to increase resources.





Minera Florida


In early 2010, the Company elected to switch to sub-level open stoping mining method on the areas previously considered as cut and fill. This change in mining method allows for more certainty of mining, consistency between mine and plant grades, and a more realistic dilution estimation. It also required a mine plan redesign and a lower cut-off grade used in the estimation of mineral reserves. As a result, Minera Florida mineral reserves were marginally increased and now total 668,000 ounces in proven and probable mineral reserves. The tonnage increased by 36% and the grade decreased to 4.18 g/t. This grade is expected to improve as new areas are discovered and developed.


Yamana continues to build on its successful 2010 exploration program with plans to spend approximately $85 million in 2011. The exploration program will focus on several new areas of mineralization discovered in 2009 and 2010 as well as increasing mineral reserves and mineral resources. Yamana anticipates the continuation of growth in mineral reserves and mineral resources in 2011.


Detailed mineral reserve and mineral resource tables follow at the end of this press release and are available on our website, >www.sedar.com, and the Company's Annual Report on Form 40-F filed with the United States Securities and Exchange Commission. Although the Company has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results not to be anticipated, estimated or intended. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. The Company undertakes no obligation to update forward-looking statements if circumstances or management's estimates, assumptions or opinions should change, except as required by applicable law. The reader is cautioned not to place undue reliance on forward-looking statements. The forward-looking information contained herein is presented for the purpose of assisting investors in understanding the Company's expected financial and operational performance and results as at and for the periods ended on the dates presented in the Company's plans and objectives and may not be appropriate for other purposes.





CAUTIONARY NOTE TO U.S. INVESTORS CONCERNING ESTIMATES OF MEASURED, INDICATED AND INFERRED MINERAL RESOURCES





This news release uses the terms "Measured", "Indicated" and "Inferred" Mineral Resources. United States investors are advised that while such terms are recognized and required by Canadian regulations, the United States Securities and Exchange Commission does not recognize them. "Inferred Mineral Resources" have a great amount of uncertainty as to their existence, and as to their economic and legal feasibility. It cannot be assumed that all or any part of an Inferred Mineral Resource will ever be upgraded to a higher category. Under Canadian rules, estimates of Inferred Mineral Resources may not form the basis of feasibility or other economic studies. United States investors are cautioned not to assume that all or any part of Measured or Indicated Mineral Resources will ever be converted into Mineral Reserves. United States investors are also cautioned not to assume that all or any part of an Inferred Mineral Resource exists, or is economically or legally mineable.




Yamana's Mineral Reserves and Resources Estimates as at December 31, 2010

Mineral Reserves (Proven and Probable)

-------------------------------------------------------------------------
Gold Proven Reserves Probable Reserves Total - Proven
and Probable
-------------------------------------------------------------------------
Cont- Cont- Cont-
Tonnes Grade ained Tonnes Grade ained Tonnes Grade ained
-------------------------------------------------------------------------
oz. oz. oz.
(000's) (g/t) (000's)(000's) (g/t) (000's) (000's) (g/t) (000's)
-------------------------------------------------------------------------
Alum-
brera
(12.5%
) 34,625 0.39 434 875 0.28 8 35,500 0.39 442
-------------------------------------------------------------------------
Chap-
ada 167,765 0.21 1,125 261,406 0.24 2,009 429,171 0.23 3,134
-------------------------------------------------------------------------
C1-
Santa
Luz 13,452 1.63 706 10,336 1.44 479 23,788 1.55 1,184
-------------------------------------------------------------------------
El
Penon 1,349 7.53 327 7,204 7.24 1,677 8,554 7.29 2,003
-------------------------------------------------------------------------
Erne-
sto/
Pau a
Pique 2,279 3.86 283 4,827 2.75 427 7,106 3.11 710
-------------------------------------------------------------------------
Faze-
nda
Brasi-
leiro 1,254 2.85 115 545 3.49 61 1,799 3.04 176
-------------------------------------------------------------------------
Gualca-
mayo 20,614 0.97 641 48,461 1.14 1,775 69,075 1.09 2,416
-------------------------------------------------------------------------
Jaco-
bina 3,754 1.93 233 17,205 2.60 1,439 20,959 2.48 1,672
-------------------------------------------------------------------------
Jero-
nimo
(57%)
(*) - - - 7,310 3.95 928 7,310 3.95 928
-------------------------------------------------------------------------
Mercedes - - - 4,362 5.66 794 4,362 5.66 794
-------------------------------------------------------------------------
Minera
Flor-
ida 1,831 4.54 267 3,149 3.96 401 4,980 4.18 668
-------------------------------------------------------------------------
Pilar
(Jord-
ino) - - - 11,098 4.03 1,439 11,098 4.03 1,439
-------------------------------------------------------------------------
Sub
Total
Gold
Mineral
Reser-
ves 246,923 0.52 4,131 376,779 0.94 11,437 623,702 0.78 15,565
-------------------------------------------------------------------------
Agua
Ri-
ca 384,871 0.25 3,080 524,055 0.21 3,479 908,926 0.22 6,559
-------------------------------------------------------------------------
Total
Gold
Mineral
Reser-
ves 631,794 0.35 7,211 900,834 0.52 14,916 1,532,628 0.45 22,124
-------------------------------------------------------------------------


-------------------------------------------------------------------------
Silver Proven Reserves Probable Reserves Total - Proven
and Probable
-------------------------------------------------------------------------
Cont- Cont- Cont-
Tonnes Grade ained Tonnes Grade ained Tonnes Grade ained
-------------------------------------------------------------------------
oz. oz. oz.
(000's) (g/t) (000's)(000's) (g/t) (000's) (000's) (g/t) (000's)
-------------------------------------------------------------------------
El
Penon 1,349 280.70 12,176 7,204 171.34 39,687 8,554 188.59 51,863
-------------------------------------------------------------------------
Merc-
edes - - - 4,362 59.80 8,386 4,362 59.80 8,386
-------------------------------------------------------------------------
Minera
Flor-
ida 1,831 30.54 1,798 3,149 29.39 2,976 4,980 29.81 4,774
-------------------------------------------------------------------------
Sub
Total
Silver
Mineral
Rese-
rves 3,180 136.67 13,974 14,715 107.90 51,049 17,896 113.01 65,023
-------------------------------------------------------------------------
Agua
Ri-
ca 384,871 3.73 46,176 524,055 3.33 56,070 908,926 3.50 102,246
-------------------------------------------------------------------------
Total
Silver
Mineral
Reser-
ves 388,051 4.82 60,150 538,770 6.18 107,119 926,822 5.61 167,269
-------------------------------------------------------------------------


-------------------------------------------------------------------------
Copper Proven Reserves Probable Reserves Total - Proven
and Probable
-------------------------------------------------------------------------
Cont- Cont- Cont-
Tonnes Grade ained Tonnes Grade ained Tonnes Grade ained
-------------------------------------------------------------------------
(000's) (%) lbs (mm)(000's) (%) lbs (mm) (000's) (%) lbs (mm)
-------------------------------------------------------------------------
Alum-
brera
(12.5%
) 34,625 0.39 298 875 0.32 6 35,500 0.39 304
-------------------------------------------------------------------------
Chap-
ada 167,765 0.29 1,068 200,951 0.24 957 368,716 0.26 2,149
-------------------------------------------------------------------------
Sub
Total
Copper
Mineral
Reser-
ves 202,390 0.31 1,366 201,826 0.24 963 404,216 0.27 2,453
-------------------------------------------------------------------------
Agua
Ri-
ca 384,871 0.56 4,779 524,055 0.43 5,011 908,926 0.49 9,789
-------------------------------------------------------------------------
Total
Copper
Mineral
Reser-
ves 587,261 0.47 6,144 725,881 0.38 5,974 1,313,142 0.42 12,242
-------------------------------------------------------------------------


-------------------------------------------------------------------------
Zinc Proven Reserves Probable Reserves Total - Proven
and Probable
-------------------------------------------------------------------------
Cont- Cont- Cont-
Tonnes Grade ained Tonnes Grade ained Tonnes Grade ained
-------------------------------------------------------------------------
(000's) (%) lbs (mm)(000's) (%) lbs (mm) (000's) (%) lbs (mm)
-------------------------------------------------------------------------
Minera
Flo-
rida 1,831 1.19 48 3,149 1.17 81 4,980 1.18 129
-------------------------------------------------------------------------
Total
Zinc
Mineral
Reser-
ves 1,831 1.19 48 3,149 1.17 81 4,980 1.18 129
-------------------------------------------------------------------------


-------------------------------------------------------------------------
Molybd- Proven Reserves Probable Reserves Total - Proven
enum and Probable
-------------------------------------------------------------------------
Cont- Cont- Cont-
Tonnes Grade ained Tonnes Grade ained Tonnes Grade ained
-------------------------------------------------------------------------
(000's) (%) lbs (mm)(000's) (%) lbs (mm) (000's) (%) lbs (mm)
-------------------------------------------------------------------------
Alum-
brera
(12.5%
) 34,625 0.013 10 875 0.015 0.3 35,500 0.013 10
-------------------------------------------------------------------------
Sub
Total
Moly
Mineral
Reser-
ves 34,625 0.013 10 875 0.015 0.3 35,500 0.013 10
-------------------------------------------------------------------------
Agua
Ri-
ca 384,871 0.033 279 524,055 0.030 350 908,926 0.031 629
-------------------------------------------------------------------------
Total
Moly
Mineral
Reser-
ves 419,496 0.031 289 524,930 0.030 350 944,426 0.031 639
-------------------------------------------------------------------------
*Jeronimo mineral reserves on a consolidated basis total 1.628 million
ounces with mineral resources of 165,000 ounces.


Mineral Resources (Measured, Indicated and Inferred)

-------------------------------------------------------------------------
Gold Measured Resources Indicated Resources
-------------------------------------------------------------------------
Tonnes Grade Contained Tonnes Grade Contained
-------------------------------------------------------------------------
oz. oz.
(000's) (g/t) (000's) (000's) (g/t) (000's)
-------------------------------------------------------------------------
Amancaya - - - - - -
-------------------------------------------------------------------------
C1-Santa Luz 12,029 1.50 580 13,728 1.43 633
-------------------------------------------------------------------------
Caiamar - - - 703 4.76 108
-------------------------------------------------------------------------
Chapada 65,250 0.13 269 369,693 0.19 2,254
-------------------------------------------------------------------------
El Penon 822 12.71 336 1,843 7.12 422
-------------------------------------------------------------------------
Ernesto/Pau a
Pique 204 6.28 41 1,793 1.44 83
-------------------------------------------------------------------------
Fazenda Brasileiro 4,617 1.76 262 3,267 2.00 210
-------------------------------------------------------------------------
Gualcamayo 5,336 1.38 237 20,283 1.06 694
-------------------------------------------------------------------------
Jacobina 3,403 2.18 238 13,735 3.23 1,425
-------------------------------------------------------------------------
Jeronimo 57%
* - - - 830 3.54 94
-------------------------------------------------------------------------
La Pepa 15,750 0.61 308 133,682 0.57 2,452
-------------------------------------------------------------------------
Mercedes - - - 1,509 3.88 188
-------------------------------------------------------------------------
Minera Florida 1,105 5.77 205 888 5.85 167
-------------------------------------------------------------------------
Pilar (Jordino) - - - 703 5.13 116
-------------------------------------------------------------------------
Pilar (Tres
Buracos) - - - - - -
-------------------------------------------------------------------------
Suyai - - - 4,700 15.00 2,286
-------------------------------------------------------------------------
Sub Total Gold
Mineral Resources 108,515 0.71 2,476 567,357 0.61 11,132
-------------------------------------------------------------------------
Agua Rica 27,081 0.14 120 173,917 0.14 776
-------------------------------------------------------------------------
Total Gold
Mineral
Resources 135,596 0.60 2,596 741,274 0.50 11,908
-------------------------------------------------------------------------

-------------------------------------------------------------------------
Gold Total - Measured Inferred Resources
and Indicated
-------------------------------------------------------------------------
Tonnes Grade Contained Tonnes Grade Contained
-------------------------------------------------------------------------
oz. oz.
(000's) (g/t) (000's) (000's) (g/t) (000's)
-------------------------------------------------------------------------
Amancaya - - - 1,390 7.90 351
-------------------------------------------------------------------------
C1-Santa Luz 25,757 1.46 1,213 4,989 1.43 230
-------------------------------------------------------------------------
Caiamar 703 4.76 108 1,380 3.30 150
-------------------------------------------------------------------------
Chapada 434,943 0.18 2,523 105,325 0.12 404
-------------------------------------------------------------------------
El Penon 2,665 8.85 758 4,447 8.12 1,161
-------------------------------------------------------------------------
Ernesto/Pau a
Pique 1,997 1.93 124 4,459 1.79 257
-------------------------------------------------------------------------
Fazenda Brasileiro 7,884 1.86 472 2,021 3.11 202
-------------------------------------------------------------------------
Gualcamayo 25,619 1.13 931 4,381 0.82 115
-------------------------------------------------------------------------
Jacobina 17,138 3.02 1,663 13,555 2.97 1,293
-------------------------------------------------------------------------
Jeronimo 57% * 830 3.54 94 1,846 3.70 219
-------------------------------------------------------------------------
La Pepa 149,432 0.57 2,760 37,900 0.50 620
-------------------------------------------------------------------------
Mercedes 1,509 3.88 188 3,444 4.23 468
-------------------------------------------------------------------------
Minera Florida 1,992 5.81 372 2,980 5.58 534
-------------------------------------------------------------------------
Pilar (Jordino) 703 5.13 116 697 5.71 128
-------------------------------------------------------------------------
Pilar (Tres
Buracos) - - - 4,100 1.30 170
-------------------------------------------------------------------------
Suyai 4,700 15.00 2,286 900 9.90 274
-------------------------------------------------------------------------
Sub Total Gold
Mineral
Resources 675,872 0.63 13,608 193,814 1.06 6,576
-------------------------------------------------------------------------
Agua Rica 200,998 0.14 896 642,110 0.12 2,444
-------------------------------------------------------------------------
Total Gold
Mineral
Resources 876,870 0.51 14,504 835,924 0.34 9,020
-------------------------------------------------------------------------


-------------------------------------------------------------------------
Silver Measured Resources Indicated Resources

-------------------------------------------------------------------------
Tonnes Grade Contained Tonnes Grade Contained
-------------------------------------------------------------------------
oz. oz.
(000's) (g/t) (000's) (000's) (g/t) (000's)
-------------------------------------------------------------------------
Amancaya - - - - - -
-------------------------------------------------------------------------
El Penon 822 332.59 8,789 1,843 193.64 11,477
-------------------------------------------------------------------------
Mercedes - - - 1,509 48.70 2,363
-------------------------------------------------------------------------
Minera Florida 1,105 20.53 729 888 30.87 881
-------------------------------------------------------------------------
Suyai - - - 4,700 23.00 3,523
-------------------------------------------------------------------------
Sub Total Silver
Mineral Resources 1,927 153.67 9,518 8,940 63.48 18,244
-------------------------------------------------------------------------
Agua Rica 27,081 2.35 2,042 173,917 2.89 16,158
-------------------------------------------------------------------------
Total Silver
Mineral Resources 29,007 12.40 11,560 182,857 5.85 34,402
-------------------------------------------------------------------------


-------------------------------------------------------------------------
Silver Total - Measured Inferred Resources
and Indicated
-------------------------------------------------------------------------
Tonnes Grade Contained Tonnes Grade Contained
-------------------------------------------------------------------------
oz. oz.
(000's) (g/t) (000's) (000's) (g/t) (000's)
-------------------------------------------------------------------------
Amancaya - - - 1,390 73.00 3,270
-------------------------------------------------------------------------
El Penon 2,665 236.53 20,266 4,447 258.17 36,911
-------------------------------------------------------------------------
Mercedes 1,509 48.70 2,363 3,444 32.10 3,554
-------------------------------------------------------------------------
Minera Florida 1,992 25.14 1,610 2,980 55.63 5,329
-------------------------------------------------------------------------
Suyai 4,700 23.00 3,523 900 21.00 575
-------------------------------------------------------------------------
Sub Total Silver
Mineral Resources 10,866 79.47 27,762 13,161 117.31 49,639
-------------------------------------------------------------------------
Agua Rica 200,998 2.82 18,200 642,110 2.33 48,124
-------------------------------------------------------------------------
Total Silver
Mineral Resources 211,864 6.75 45,962 655,271 4.64 97,763
-------------------------------------------------------------------------


-------------------------------------------------------------------------
Copper Measured Resources Indicated Resources
-------------------------------------------------------------------------
Tonnes Grade Contained Tonnes Grade Contained
-------------------------------------------------------------------------
(000's) (%) lbs (mm) (000's) (%) lbs (mm)
-------------------------------------------------------------------------
Chapada 65,250 0.18 239 278,787 0.19 1,146
-------------------------------------------------------------------------
Sub Total Copper
Mineral Resources 65,250 0.18 239 278,787 0.19 1,146
-------------------------------------------------------------------------
Agua Rica 27,081 0.45 266 173,917 0.38 1,447
-------------------------------------------------------------------------
Total Copper
Mineral Resources 92,331 0.26 505 452,704 0.26 2,593
-------------------------------------------------------------------------


-------------------------------------------------------------------------
Copper Total - Measured Inferred Resources
-------------------------------------------------------------------------
Tonnes Grade Contained Tonnes Grade Contained
-------------------------------------------------------------------------
(000's) (%) lbs (mm) (000's) (%) lbs (mm)
-------------------------------------------------------------------------
Chapada 344,037 0.19 1,385 96,147 0.19 392
-------------------------------------------------------------------------
Sub Total Copper
Mineral Resources 344,037 0.19 1,385 96,147 0.19 392
-------------------------------------------------------------------------
Agua Rica 200,998 0.39 1,714 642,110 0.34 4,853
-------------------------------------------------------------------------
Total Copper
Mineral Resources 545,035 0.26 3,099 738,257 0.32 5,245
-------------------------------------------------------------------------


-------------------------------------------------------------------------
Zinc Measured Resources Indicated Resources
-------------------------------------------------------------------------
Tonnes Grade Contained Tonnes Grade Contained
-------------------------------------------------------------------------
(000's) (%) lbs (mm) (000's) (%) lbs (mm)
-------------------------------------------------------------------------
Minera Florida 1,105 2.26 55 888 1.52 30
-------------------------------------------------------------------------
Total Zinc
Mineral Resources 1,105 2.26 55 888 1.52 30
-------------------------------------------------------------------------


-------------------------------------------------------------------------
Zinc Total - Measured Inferred Resources
and Indicated
-------------------------------------------------------------------------
Tonnes Grade Contained Tonnes Grade Contained
-------------------------------------------------------------------------
(000's) (%) lbs (mm) (000's) (%) lbs (mm)
-------------------------------------------------------------------------
Minera Florida 1,992 1.94 85 2,980 1.43 94
-------------------------------------------------------------------------
Total Zinc
Mineral Resources 1,992 1.94 85 2,980 1.43 94
-------------------------------------------------------------------------


-------------------------------------------------------------------------
Molybdenum Measured Resources Indicated Resources
-------------------------------------------------------------------------
Tonnes Grade Contained Tonnes Grade Contained
-------------------------------------------------------------------------
(000's) (%) lbs (mm) (000's) (%) lbs (mm)
-------------------------------------------------------------------------
Agua Rica 27,081 0.049 29 173,917 0.037 142
-------------------------------------------------------------------------

Total Moly
Mineral Resources 27,081 0.049 29 173,917 0.037 142
-------------------------------------------------------------------------


-------------------------------------------------------------------------
Molybdenum Total - Measured Inferred Resources
and Indicated
-------------------------------------------------------------------------
Tonnes Grade Contained Tonnes Grade Contained
-------------------------------------------------------------------------
(000's) (%) lbs (mm) (000's) (%) lbs (mm)
-------------------------------------------------------------------------
Agua Rica 200,998 0.039 172 642,110 0.034 480
-------------------------------------------------------------------------
Total Moly
Mineral Resources 200,998 0.039 172 642,110 0.034 480
-------------------------------------------------------------------------
NOTE: Mineral Resources are exclusives of Mineral Reserves


Yamana Gold Inc. Mineral Reserves and Mineral Resource Reporting Notes:


1. Metal Prices and Cut-off Grades

-------------------------------------------------------------------------
Mine Mineral Reserves Mineral Resources
-------------------------------------------------------------------------
Alumbrera $1,040 Au, $2.80 Cu, $16.00 N/A
(12.5%) and 0.22% CuEq
-------------------------------------------------------------------------
Amancaya N/A 1.0 g/t Aueq OP ,
3.4 g/t Aueq UG
-------------------------------------------------------------------------
Caiamar N/A 1.5 g/t Au cut-off
-------------------------------------------------------------------------
Chapada $900 Au, $2.50 Cu, $3.53 $3.53 NSR cut-off out of pit
NSR cut-off
-------------------------------------------------------------------------
C1-Santa Luz $750 Au, 0.50 g/t Au 0.5 g/t Au cut-off
cut-off
-------------------------------------------------------------------------
El Penon $900 Au, $15.00 Ag, 3.6 g/t 1.2 g/t Aueq cut-off
Aueq cut-off
-------------------------------------------------------------------------
Ernesto/Pau $825 Au, 1.0 g/t UG, 0.3 g/t OP 1.0 g/t UG
a Pique 0.3 g/t Au OP cut-off
-------------------------------------------------------------------------
Fazenda $1,000 Au, 1.34 g/t Au UG 0.5 g/t cut-off UG and
Brasileiro and 0.94g/t Au OP cut-off 0.25g/t Au OP cut-off
-------------------------------------------------------------------------
Gualcamayo $900 Au, 1.00 g/t Au UG and 1.00 g/t Au UG and 0.15 g/t
0.15 g/t Au Open Pit Au OP cut-off
cut-off
-------------------------------------------------------------------------
Jacobina $900 Au; 1.18 g/t Au 0.5 g/t Au cut-off for
cut-off Jacobina Mines and 1.5 g/t
Au cut-off for Pindobacu
Project
-------------------------------------------------------------------------
Jeronimo $900 Au, 2.0 g/t Au cut-off 2.0 g/t Au cut-off
-------------------------------------------------------------------------
La Pepa N/A $780 Au, 0.30 g/t Au cut-off
-------------------------------------------------------------------------
Mercedes $900 Au, $15.00 Ag, 2.0 g/t Aueq cut-off
3.0 g/t Aueq
-------------------------------------------------------------------------
Minera Florida $900 Au, $15.00 Ag, 1.2 g/t Aueq cut-off
$1 lb Zn, 2.51 g/t
Aueq cut-off
-------------------------------------------------------------------------
Pilar $900 Au; 2.0 g/t Au cut-off 2.0 g/t Au cut-off
-------------------------------------------------------------------------
Suyai N/A 5.0 g/t Au cut-off
-------------------------------------------------------------------------
Agua Rica $1,000 g/t Au, $2.50 lb Cu, 0.2% Cu cut-off
$17.00 g/t Ag, $12.00 lb Mo
-------------------------------------------------------------------------
2. All mineral reserves and mineral resources have been calculated in
accordance with the standards of the Canadian Institute of Mining,
Metallurgy and Petroleum and NI 43-101, other than the estimates for
the Alumbrera mine which have been calculated in accordance with the
JORC Code which is accepted under NI 43-101.
3. All mineral resources are reported exclusive of mineral reserves.
4. Mineral resources which are not mineral reserves do not have
demonstrated economic viability.
5. Mineral reserves and mineral resources are reported as of
December 31, 2010.
6. For the qualified persons responsible for the mineral reserve and
mineral resource estimates, see the qualified persons chart in "Item
15 Interests of Experts" in this annual information form.


The following are qualified persons responsible for mineral reserve and
mineral resource estimates as at December 31, 2010.

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Qualified Persons Qualified Persons
Property for Mineral Reserves for Mineral Resources
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Fazenda Rogerio Moreno, MAusIMM, Rogerio Moreno, MAusIMM,
Brasileiro Principal Geologist, MCB Principal Geologist, MCB
Servicos e Mineracao Ltda. Servicos e Mineracao Ltda.
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C-1 Santa Enrique Munoz Gonzalez, Marco Antonio Alfaro
Luz MAusIMM, Metalica Sironvalle, MAusIMM,
Consultores S.A. Corporate Manager,
Reserves, Yamana Gold Inc.
-------------------------------------------------------------------------
Jacobina Emerson Ricardo Re, MSc, Rogerio Moreno,
MAusIMM, Corporate Manager MAusIMM, Principal
R&R, Yamana Gold Inc. Geologist, MCB Servicos e
Mineracao Ltda.
-------------------------------------------------------------------------
Ernesto/ Renato Petter, P. Eng., Rogerio Moreno, MAusIMM,
Pau a Pique Technical Services Director, Principal Geologist, MCB
Yamana Gold Inc. Servicos e Mineracao Ltda.
-------------------------------------------------------------------------
Chapada Raul Contreras, Metalica Emerson Ricardo Re, MSc,
Consultores S.A. MAusIMM, Corporate Manager
R&R, Yamana Gold Inc.

For Chapada

-and-

Greg Walker, P.Geo., Senior
Manager, Resources
Estimation, Yamana
Gold Inc.

For Chapada - Suruca
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Gualcamayo Emerson Ricardo Re, MSc, Marcos Valencia A. P.Geo.,
MAusIMM, Corporate Manager Regional Resource
R&R, Yamana Gold Inc. Estimation Manager, Andes
Exploration, Yamana
Gold Inc.
-------------------------------------------------------------------------
Pilar Guillermo Bagioli, MAusIMM, Marco Antonio Alfaro
Metalica Consultores S.A. Sironvalle, MAusIMM,
Corporate Manager,
For Jordino Reserves, Yamana Gold Inc.

-and- For Jordino

Emerson Ricardo Re, MSc, -and-
MAusIMM, Corporate Manager
R&R, Yamana Gold Inc. Pamela L. De Mark, P.Geo.,
Senior Consultant, Snowden
For Jordino Extension Mining Industry Consultants
Inc.

For 3 Buracos
-------------------------------------------------------------------------
El Penon Marco Antonio Alfaro Marcos Valencia A. P.Geo.,
Sironvalle, MAusIMM, Regional Resource
Corporate Manager, Estimation Manager, Andes
Reserves, Yamana Gold Inc. Exploration, Yamana
Gold Inc.
-------------------------------------------------------------------------
Minera Marco Antonio Alfaro Marcos Valencia A. P.Geo.,
Florida Sironvalle, MAusIMM, Regional Resource
Corporate Manager, Estimation Manager, Andes
Reserves, Yamana Gold Inc. Exploration, Yamana
Gold Inc.
-------------------------------------------------------------------------
Amancaya Not applicable Chester M. Moore, P.Eng.,
Scott Wilson Roscoe Postle
Associates Inc.
-------------------------------------------------------------------------
Agua Rica Enrique Munoz Gonzalez, Evandro Cintra, Ph.D.,
MAusIMM, Metalica P. Geo., Senior Vice
Consultores S.A. President, Technical
Services, Yamana Gold Inc.
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Alumbrera Julio Bruna Novillo, AusIMM, Julio Bruna Novillo, AusIMM,
Xstrata Plc Xstrata Plc
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Jeronimo Guillermo Bagioli Arce, Dominique Bongarcon,
M. AusIMM , Metalica Ph.D, P.Eng., Agoratek
Consultores S.A. International
-------------------------------------------------------------------------
Suyai Not applicable Robin J. Young, P. Geo.,
Western Services
Engineering, Inc.
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Mercedes Greg Walker, P.Geo., Greg Walker, P.Geo., Senior
Senior Manager, Resources Manager, Resources
Estimation, Yamana Gold Inc. Estimation, Yamana
Gold Inc.
-------------------------------------------------------------------------
La Pepa Not applicable Chester M. Moore, P.Eng.,
Scott Wilson Roscoe Postle
Associates Inc.
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SOURCE Yamana Gold Inc.



For further information: Lisa Doddridge, Vice President, Corporate Communications and Investor Relations, (416) 815-0220, Email: investor@yamana.com or Linda Armstrong, Director, Investor Relations, (416) 815-0220, Email: investor@yamana.com, http://www.yamana.com/">www.yamana.com