Reserves & Resources

El Limon Reserves

Click here NI43-101 Technical Reports. See December 31, 2019 Annual Information Form.

Mine Classification Tonnage
(000)
Grade
(g/t Au)
Contained Au
(oz 000)
Limon - Limón Central OP Probable 1,428 4.25 195
Sub-total Open Pit Probable 1,428 4.25 195
         
Santa Pancha 1 UG Probable 304 3.51 34
Veta Nueva UG Probable 312 5.66 57
Sub-total Underground Probable 616 4.60 91
Total Open Pit and Underground Probable 2,044 4.36 286

Notes:

  1. CIM (2014) definitions were followed for Mineral Reserves.
  2. Mineral Resources are based on 100% ownership.
  3. Mineral Reserves are estimated using an average long-term gold price of US$1,350 per ounce
  4. Open pit Mineral Reserves are estimated at a cut-off grade of 1.32 g/t Au and incorporate estimates of mining dilution and mining losses during production.
  5. Underground Mineral Reserves are estimated at a cut-off grade of 2.79 g/t Au for Santa Pancha 1 and a cut-off grade of 3.53 g/t Au for Veta Nueva.
  6. A minimum mining width of 30 m was used for El Limón Central open pit.
  7. Minimum mining widths of 4 m and 3 m were used for Santa Pancha 1 and Veta Nueva underground mines respectively.
  8. A mining extraction factor of 95% was applied to the underground stopes. Where required a pillar factor was also applied for sill or crown pillar. A 100% extraction factor was assumed for development.
  9. Bulk density is 2.26 t/m3 for open pit resources and 2.5 t/m3 for underground resources.
  10. Numbers may not add due to rounding.
  11. Mineral reserves are reported in dry metric tonnes.
  12. Open Pit (OP), Underground (UG)
  13. Darren Hall, MAusIMM, Calibre’s Senior Vice President and Chief Operating Officer has reviewed and approved these mineral reserve estimates. Mr. Hall is a Qualified Person responsible for the purposes of NI 43-101.

El Limon Resources

Click here NI43-101 Technical Reports. See December 31, 2019 Annual Information Form.

Area Tonnes
(000)
Grade
(g/t Au)
Contained Au
(oz 000)
Indicated      
Limon – Limon Central OP 1,878 4.24 257
Santa Pancha 1 UG 933 4.97 149
Santa Pancha 2 UG 445 4.13 59
Veta Nueva UG 498 4.05 65
Tailings 7,329 1.12 263
Total Indicated 11,083 2.23 793
       
Inferred      
Limon – Pozo Bono OP 977 6.29 197
Limon – Limon Sur OP 402 2.15 28
Limon – Limon Central OP 1,145 5.79 214
Limon – Limon Norte OP 836 5.43 146
Limon – Tigra / Chaparral OP 487 6.01 94
Santa Pancha 1 UG 436 4.55 64
Santa Pancha 2 UG 166 3.63 19
Veta Nueva UG 83 3.59 9
Total Inferred 4,532 5.29 771

Notes:

  1. CIM (2014) definitions were followed for Mineral Resources.
  2. Mineral Resources are based on 100% ownership.
  3. Mineral Resources are estimated using a long-term gold price of US$1,500 per ounce.
  4. Mineral Resources are estimated at cut-off grades of 1.25 g/t Au for the Limón open pit resource pit shells, 1.20 g/t Au for the Tailings, and 2.25 g/t Au for underground in Santa Pancha 1 and Veta Nueva.
  5. Bulk density is from 1.86 t/m3 to 2.85 t/m3 for Limon open pit material, 2.50 t/m3 for Santa Pancha 1 and Veta Nueva underground material, from 2.45 t/m3 to 2.50 t/m3 for Santa Pancha 2 underground material, and from 1.29 to 1.33 t/m3 for tailings material.
  6. Mineral Resources presented are inclusive of Mineral Reserves.
  7. Mineral Resources that are not Mineral Reserves and do not have demonstrated economic viability.
  8. Numbers may not add due to rounding.
  9. Mineral resources are reported in dry metric tonnes
  10. Open Pit (OP); Underground (UG)
  11. Mark Petersen, P. Geo., Calibre’s Vice President of Exploration has reviewed and approved these mineral resource estimates and related technical information. Mr. Petersen is a Qualified Person for the purposes of NI 43-101.

La Libertad Resource

Click here NI43-101 Technical Reports. See December 31, 2019 Annual Information Form.

Area Tonnes
(000)
Grade
(g/t Au)
Contained Au
(oz 000)
Indicated      
Jabalí Central OP 381 2.22 27
Jabalí Antena OP 364 5.43 63
Stockpile 8 0.75 0.2
Total Indicated 753 4.14 90.2
       
Inferred      
Jabalí Central OP 185 2.26 13
Jabalí Antena OP 81 3.06 8
Jabalí UG 1,243 7.87 315
San Juan UG 146 4.32 20
Tope (San Diego) UG 141 4.19 19
Socorro (Chamorro) OP 154 1.77 8
Rosario OP 228 2.14 16
San Antonio OP 366 2.78 32
Mojon UG 481 4.79 74
Spent-Ore 1,160 0.53 20
Total Inferred 4,185 3.90 525

Notes:

  1. CIM (2014) definitions were followed for Mineral Resources.
  2. Mineral Resources are based on 100% ownership.
  3. Mineral Resources are estimated using a long-term gold price of US$1,500 per ounce.
  4. Mineral Resources are estimated at cut-off grades ranging from 0.80 g/t Au for open pit and 2.90 g/t Au for underground.
  5. Bulk density is 1.70 t/m3 to 2.65 t/m3.
  6. Mineral Resources that are not Mineral Reserves and do not have demonstrated economic viability.
  7. Numbers may not add due to rounding.
  8. Open Pit (OP); Underground (UG)
  9. Mark Petersen, P. Geo., Calibre’s Vice President of Exploration has reviewed and approved these mineral resource estimates and related technical information. Mr. Petersen is a Qualified Person for the purposes of NI 43-101.

Pavon Gold Project Resource Estimate1

Table 1   Comparison Between 2019 and 2014 Pavon Mineral Resource

    Tonnes (‘000s)       Au Grade (g/t)       Contained Au Ounces (‘000s)  
Indicated Mineral Resources Dec
2019 (3)
Prior
Report
(1)(2)
Change %   Dec
2019 (3)
Prior
Report
(1)(2)
Change %   Dec
2019 (3)
Prior
Report
(1)(2)
Change %
Pavon 1,388 290 379   5.16 5.82 -11%   230 55 318
Inferred Mineral Resources Dec
2019 (3)
Prior
Report
(1)(2)
Change %   Dec
2019 (3)
Prior
Report
(1)(2)
Change %   Dec
2019 (3)
Prior
Report
(1)(2)
Change %
Pavon 567 130 336%   3.38 5.5 -38%   62 23 170%

Notes:
(1)  Mineral Resource estimates were compiled as of November 14, 2014.
(2)  Mineral Resources are constrained within a pit shell and reported above a cut-off grade of 2.0 g/t gold, which was calculated using estimated project costs and a gold price of US$1,500 per ounce.
(3)  Mineral Resources are constrained within a pit shell and reported above a cut-off grade of 1.15 g/t gold, which was calculated using estimated project costs and a gold price of US$1,400 per ounce.

Table 2   2019 Pavon Mineral Resource Summary

Classification Domain Rock Code Tonnes Au
(g/t)
Ag
(g/t)
Au (Ounces) Ag (ounces)
Indicated Pavon North Saprolite 260,000 3.46 2.16 28,914 18,056
Vein 612,000 3.58 5.82 70,418 114,563
Total 872,000 3.54 4.73 99,332 132,619
Pavon Central Saprolite 65,000 4.49 5.31 9,374 11,106
Vein 451,000 8.38 13.88 121,469 201,191
Total 516,000 7.89 12.80 130,843 212,297
Total Saprolite 325,000 3.66 2.79 38,288 29,162
Vein 1,063,000 5.61 9.24 191,887 315,754
Total 1,388,000 5.16 7.73 230,175 344,915
               
Inferred Pavon North Saprolite 47,000 2.41 4.02 3,644 6,070
Vein 113,000 3.46 5.85 12,563 21,249
Total 160,000 3.15 5.31 16,207 27,318
Pavon Central Saprolite 61,000 4.96 4.48 9,720 8,786
Vein 89,000 4.20 9.98 12,007 28,566
Total 150,000 4.51 7.74 21,727 37,352
Pavon South Vein 257,000 2.87 2.98 23,690 24,623
Total 257,000 2.87 2.98 23,690 24,623
Total Total 567,000 3.38 4.90 61,624 89,293

Mineral Resource Estimate Notes:
(1)  Mineral Resources were prepared in accordance with NI 43-101 and the CIM Definition Standards (2014).  Mineral resources that are not mineral reserves do not have demonstrated economic viability.
(2)  This estimate of mineral resources may be materially affected by environmental, permitting, legal, title, taxation, sociopolitical, marketing, or other relevant issues.
(3)  Open pit Mineral Resources are reported at a cut-off grade of 1.15 g/t gold that is based on a gold price of US$1,400/oz, an operating cost of US$50.68/tonne and a gold processing recovery factor of 94%.
(4)  Appropriate mining costs, processing costs, metal recoveries, and inter ramp pit slope angles were used by WSP to generate the pit shell.
(5)  Rounding may result in apparent summation differences between tonnes, grade, and contained metal content.
(6)  Tonnage and grade measurements are in metric units.  Contained gold ounces are in troy ounces.
(7)  Composites completed at 2 m down the hole.
(8)  Contributing assay composites were capped at 29.03 g/t Au at Pavon North, 75 g/t Au at Pavon Central and 17.18 g/t Au at Pavon South.
(9)  A specific gravity value of 2.49 was applied to all blocks in rock and 2.30 was applied to all blocks in saprolite.
(10)  Modeling was performed use in GEOVIA Surpac 2019 software with grades estimated using ordinary kriging (OK) interpolation methodology.
(11)  Blocks are 5x5x5 with 2 sub-blocks.

The Borosi Concession Projects

Overview; Calibre Mining Corp. has outlined mineral resources in four areas within the Borosi Concessions. (Click here for the Techncial Reports)

Within the Projects currently owned 100% by Calibre Mining, in 49% joint venture with IAMGOLD, and 33% in joint venture with Santa Rita Mining Inferred Resource total;

EBP 100% JV 49% CXB LS Epithermal Inferred 4,418,000

Additionally within the Rosita D JV (33% Calibre) indicated resources host 252,000 gold equivalent ounces.

Zone Status Deposit
Style
Resource
Category
Tonnes
Primavera 100% CXB Au-Cu Porphyry Inferred 44,974,000
C. Aeropuerto 100% CXB Au Skarn Inferred 6,052,000
EBP JV 49% CXB LS Epithermal Inferred 4,418,000
Rosita D JV 33% CXB Cu - Au Skarn Inferred 5,393,000
Subtotal     Inferred 60,837,000
  
Rosita D JV 33% CXB Cu - Au Skarn Indicated 6,460,000
 
Zone Grade
(Au g/t)

Grade
(Ag g/t)

Grade
Cu (%)
Grade
(Aueq g/t)
Primavera 0.54 1.1 0.22 0.84
C. Aeropuerto 3.64 16.2 0.0 3.89
EBP 4.93 80.0 0.0 5.72
Rosita D (inferred) 0.49 9.0 0.46 1.22
Avg (Inferred) 1.16 9.1 0.12 1.53
  
Rosita D (Indicated) 0.47 7.3 0.50 1.21
 
Zone Au Ag Cu Aueq
  (ounces) (ounces) (Mlbs) (ounces)
Primavera 782,116 1,661,293 218,670,212 1,212,000
C. Aeropuerto 707,750 3,144,500 n/a 757,000
EBP 700,500 11,359,500 n/a 812,000
Rosita D (inferred) 85,500 1,564,500 55,100,000 211,000
Subtotal (Inferred) 2,276,000 17,730,000 273,800,000 2,992,469
 
Rosita D (Indicated) 96,700 1,520,500 70,969,000 251,500

Notes:
1. Riscos de Oro and La Luna currently optioned to JV with IAMGOLD 

Primavera Gold-Copper Porphyry; Calibre Mining Corp. announced the maiden resource on the 100% Owned Primavera Gold-Copper porphyry in December of 2016. The inferred Resources is 45 million tonnes grading 0.84 g/t AuEq containing 1.2 million ounces gold equivalent.

Inferred Resource at a cutoff of 0.5 g/t Au for the Primavera Au-Cu Porphyry Deposit

Resource
tonnes
Au
g/t
Ag
g/t
Cu
%
Au
Eq
Au
ozs
Ag
ozs
Cu
Lbs
Au Eq
ozs
44,974,000 0.54 1.15 0.22 0.84 782,000 1,661,000 218,670,000 1,200,000

Notes:
1. CIM definition standards were followed for the resource estimate.
2. The 2016 resource models used Ordinary Krig grade estimation within a three-dimensional block model with mineralized zones defined by wireframed solids (HG=high grade, LG= low grade, sap=saprolite).
3. A base cutoff grade of 0.5 % g/t Au was used for reporting resources.
4. Densities varied by material type and ranged from 2.4 for saprolite to 2.71 for diorite and the volcanics have variable estimated densities using inverse distance.
5. Gold Equivalent (AuEq) calculated using $1300/oz Au for gold, $2.40/lb for Copper, and $20.00/oz Ag for silver and metallurgical recoveries are assumed to equal for all metals. 

The Primavera Project NI 43-101 Inferred Resource Estimate was prepared by independent qualified person Todd McCracken, P. Geo. of WSP. The resource estimate is based on the combination of geological modeling, geostatistics and conventional block modeling using the Ordinary Krig methodology of grade interpolation. The mineralized zones were defined by wireframed solids consisting of HG=high grade, LG= low grade, and sap=saprolite. The mineral resources were estimated using a block model with parent blocks of 10m X 10m X 5m. A capping study was made using histograms, probability plots, quantile plots and deciles plots to define the capping values resulting in capping value of; HG: 2.7 g/t Au; 9 g/t Ag; 1% Cu and LG: 1.7 g/t Au, 3.6 g/t Ag and 0.46% Cu.

The WSP Resource Estimate also evaluated the Primavera Deposit at a range of cutoff grades between 0.1 g/t Au and 0.9 g/t Au. Results are as follows;

Inferred Resource at Range of Cutoff Grades for the Primavera Au-Cu Porphyry Deposit

Cut off
(g/t Au)
Tonnes AuEq
g/t
Au
g/t
Ag
g/t
Cu
%
Au
Ounces
Ag
Ounces
Cu
lbs
Au Eq
Ounces
0.1 68,522,000 0.68 0.44 1.05 0.18 962,729 2,317,265 274,001,899 1,505,040
0.3 64,961,000 0.71 0.45 1.07 0.19 947,401 2,236,619 267,662,523 1,476,720
0.5 44,974,000 0.84 0.54 1.15 0.22 782,116 1,661,293 218,670,212 1,212,132
0.7 26,906,000 1.00 0.65 1.23 0.26 565,752 1,067,503 154,230,473 867,563
0.9 15,838,000 1.15 0.76 1.32 0.39 385,778 672,342 103,595,734 587,766

WSP also completed whittle analyses to estimate an open pit-constrained Inferred resource with results as follows;

Open Pit-Constrained Inferred Resource at a 0.5 g/t Au Cutoff- Primavera Au-Cu Porphyry Deposit

Cut off
(g/t Au)
Tonnes AuEq
g/t
Au
g/t
Ag
g/t
Cu
%
Au
Ounces
Ag
Ounces
Cu
lbs
Au Eq
Ounces
0.5 27,790,000 0.91 0.60 1.22 0.23 535,110 1,094,240 140,070,503 811,162

Notes:
1. Whittle optimized open pit.
2. Mining Cost $2.25/t mined, Processing Cost $20/t processed (included G and A and Selling Costs)
3. Mining Dilution 5% @ 0 grade and Mining Recovery 95% both applied globally.
4. Metal Recovery; 90% for Au and 90% for Cu.
5. Metal prices; $1300/oz Au and $2.40/lb Cu
6. Overall slope angles; 200 overburden, 420 saprolite, and 440 in rock.

WSP ‘s resource estimate for Primavera is based on drill core assay results from a total of 33 holes totaling 13,491 metres of drilling and 52 trenches totaling 660.9 metres. Statistical and geostatistical analysis was completed on the total database to assess the characteristics and distribution of gold, copper and silver values across the deposit. Variograms were generated for gold, copper and silver and search parameters established for grade interpolation using kriging.

Eastern Borosi Gold-Silver Property; Calibre Mining Corp. has outlined additional Inferred resources;

Calibre controls an undivided 100% interest in the Eastern Borosi Gold-Silver Property. In May 2018, on behalf of the joint venture between IAMGOLD (51%) and Calibre Mining (49%), Roscoe Postle Associates Inc. (“RPA”) has completed initial resource estimates for the Blag, East Dome, Guapinol, and Vancouver veins, as well as updated Mineral Resource estimates for the Riscos de Oro and La Luna veins, which are part of the Eastern Borosi joint venture. The resource models assumed open pit extraction for the La Luna veins, and underground mining extraction for the other veins. The underground resource estimate comprises Inferred Resources totaling 3,219,000 tonnes grading 6.03 g/t Au and 104 g/t Ag for 624,000 ounces of contained gold and 10,758,500 ounces of contained silver. The open pit resource comprises inferred resources totaling 1,199,000 tonnes grading 1.98 g/t Au and 16 g/t Ag, for 76,500 ounces of contained gold and 601,000 ounces of contained silver. A summary of the Inferred Mineral Resource estimate is presented in the table below. For full details please see news release Calibre Mining Announces that Joint Venture partner IAMGOLD has reported an Inferred Mineral Resource Estimate of 812, 000 Gold Equivalent Ounces on the Eastern Borosi Project, Nicaragua. (https://calibremining.com/news/2018/calibre-mining-announces-that-joint-venture-partner-iamgold-has-reported-an-inferred-mineral-resource-estimate-of-812-000-gold/)

INFERRED Mineral Resources IAMGOLD Corporation / Calibre Mining Corp. – Eastern Borosi Project

Category Method /
Vein
Tonnage
(000 t)
Grade
Au
(g/t)
Contained
Ounces
Au
(oz)
Grade
Ag
(g/t)
Contained
Ounces
Ag
(oz)
Grade
AuEq
(g/t)
Contained
Ounces
AuEq
(oz)
Inferred Underground              
  Blag 740 3.01 71,500 117 2,776,000 4.16 99,000
  East Dome 513 2.23 37,000 219 3,611,000 4.38 72,500
  Riscos 1,184 5.73 218,000 106 4,046,500 6.77 258,000
  Guapinol 612 12.74 251,000 12 243,500 12.86 253,000
  Vancouver 170 8.54 46,500 15 82,000 8.69 47,500
  Total Underground 3,219 6.03 624,000 104 10,758,500 7.05 729,500
     
Inferred Open Pit
  La Luna 1,199 1.98 76,500 16 601,000 2.13 82,000
     
Inferred Total Underground
and Open Pit
4,418 4.93 700,500 80 11,359,500 5.72 812,000

Notes:
1. CIM (2014) definitions were followed for classification of Mineral Resources.
2. Mineral Resources are estimated at a cut-off grade of 2.0 g/t AuEq for resources potentially mined by underground methods and 0.42 g/t AuEq for resources potentially mined by open pit methods.
3. Gold equivalent values were calculated using the formula: AuEq (g/t) = Au (g/t) + Ag (g/t) / (101.8)
4. Mineral Resources are estimated using a long-term gold price of US$1,500 per ounce of gold, US$23 per ounce of silver.
5. A minimum mining width of 2.4 m was used for underground and 3 m for open pit.
6. Bulk density is 2.65 t/m3 for Blag, East Dome, Riscos De Oro, and La Luna, and 2.60 t/m3 for Guapinol and Vancouver.
7. East Dome is included in the Blag resource model and Vancouver is included in the Guapinol resource model.
8. Numbers may not add due to rounding.
9. Mineral Resources that are not Mineral Reserves do not have economic viability

Siuna Gold Project ; Calibre Mining Corp. has outlined additional Inferred resources;

In February 2011, Calibre announced new gold and silver resources for the 100% owned Cerro Aeropuerto deposit. The National Instrument 43-101 (“NI 43-101”) compliant, inferred resource totals 707,000 ounces of gold and 3,144,500 ounces of silver (757,000 ounces of gold equivalent).

Inferred Resource for Cerro Aeropuerto (using a 0.6 g/t AuEq cutoff grade)

Zone Tonnes Grade
(Au g/t)
Grade
(Ag g/t)
Grade
(Aueq g/t)
Au
(ounces)
Ag
(ounces)
Aueq
(ounces)
C. Aeropuerto 6,052,000 3.64 16.2 3.89 707,750 3,144,500 757,000

1. Resource models used Inverse Distance grade estimation within a three-dimensional block model with mineralized zones defined by wireframed solids and a base cutoff grade of 0.6 g/t.
2. Resource Estimate for Cerro Aeropuerto detailed in Technical Report titled NI 43-101 Technical Report and Resource Estimation of the Cerro Aeropuerto and La Luna Deposits, Borosi Concessions, Nicaragua by Todd McCracken, dated April 11, 2011.
3. Gold Equivalent (AuEq) for C. Aeropuerto was calculated using $1058/oz Au for gold and $16.75/oz Ag for silver, and metallurgical recoveries and net smelter returns are assumed to be 100%.

Rosita D Joint Venture with Rosita Mining (Rosita 66% / Calibre 33%); Calibre Mining Corp. has outlined additional resources;

In February 2016 the Rosita D Resource Update included; Stockpile resources upgraded to Indicated category, Total gold and copper resources increased from the 2012 estimate by 24% and 8% respectively, and the maiden tailings resources estimated.

The resource estimate in stockpiles totals 70.9 million lbs. of copper and 96,660 oz. of gold and 46.2 million lbs. of copper and 50,330 oz. of gold in the Indicated and Inferred categories respectively. Indicated resources total 6.46 million tonnes grading 0.47 grams gold per tonne and 0.5% copper per tonne whilst Inferred resources total 3.44 million tonnes grading 0.46 grams gold per tonne and 0.61% copper per tonne in a series of stockpiles located near the former producing Santa Rita gold-copper open pit mine. These estimates have been based on a US$10 net smelter return (“NSR”) cut off. In addition, the Company is also reporting maiden Inferred resources of 1.96 million tonnes grading 0.56 grams gold per tonne at cut-off of 0.3 g/t gold in tailings located proximal to the Santa Rita stockpiles. 

The results of these resource estimates, which are summarized in Table below, were prepared by Yungang Wu., P. Geo., an independent Qualified Person as defined by NI 43-101. 

Table - Indicated and Inferred Mineral Resource Estimate, Santa Rita Stockpiles and Tailings

ZONE Class Tonnes Au
(g/t)
Au
oz
Cu
%
Cu
(lbs)
Ag
(g/t)
Ag
oz
Stockpile Indicated 6,460,000 0.47 96,700 0.5 70,968,800 7.32 1,520,500
Stockpile Total Inferred 3,437,000 0.46 50,300 0.61 46,284,000 8.66 957,500
Tailings Inferred 1,956,000 0.56 35,200 0.21 8,816,000 9.65 607,000
TOTAL Inferred 5,393,000 0.493 85,500 0.46 55,100,000 9.02 1,564,500
ZONE Class AuEq g/t Au Eq oz
Stockpile Indicated 1.21 251,526
Stockpile Total Inferred 1.36 150,279
Tailings Inferred 0.97 61,058
TOTAL Inferred 1.22 211,337

1. The quantity and grade of reported Inferred resources in this estimation are uncertain in nature and there has been insufficient exploration to define these Inferred resources as an Indicated or Measured mineral resource and it is uncertain if further exploration will result in upgrading them to an Indicated or Measured mineral resource category.
2. A gold price of US$1,200/oz, copper price of US$2.5/lb and silver price of US$16/oz were utilized in the NSR calculations of block values with process recoveries of 80% for gold, 35% for Cu (10% deducted for smelting) and 65% for silver. These values were equated against a cut-off grade of US$10 for stockpiles and 0.3 g/t Au for tailing mineral resources.
3. For the cut-off grade, mining costs were assumed at US$1.00/t, process costs at US$7.50/t and G&A costs at US$1.50/t 

The updated NI 43-101 resource estimates incorporated the results of a reverse circulation drilling campaign completed by Rosita in the fourth quarter of 2015. This work included 1,040 m of drilling in 55 vertical in-fill holes on five stockpiles located near the former Santa Rita open pit and 87 auger holes totaling 460 metres in a portion of the tailings piles, drilled in 2012 and 2013. Drilling to test the tailings only tested a small portion of the overall tailing piles which remain open for possible resource expansion

The stockpiles at the project were generated over a 17-year operating life from 1959 to 1975 at the Santa Rita open pit mine. A total of 5.4 million tonnes averaging 2.06% copper, 0.93 grams gold and 15.08 grams silver per tonne were mined. In addition to the stockpile resources, the concessions also include 15 exploration targets for gold-copper skarn and porphyry mineralization. 

Notes (for all Resource Estimates):

  1. CIM definition standards were followed for the resource estimate.
  2. Numbers may not add exactly due to rounding.
  3. Mineral Resources that are not mineral reserves do not have economic viability
  4. The quantity and grade of reported inferred resources in this estimation are uncertain in nature and there has been insufficient exploration to define these inferred resources as an indicated or measured mineral resource and it is uncertain if further exploration will result in upgrading them to an indicated or measured mineral resource category.

Qualified Person

Darren Hall, MAusIMM, MSME, SVP & Chief Operating Officer Calibre Mining Corp is a “qualified person” as set out under NI 43-101 has reviewed and approved the scientific and technical information in this press release.


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