Canadian Malartic is Canada’s largest operating gold mine. Ore movement was estimated which resulted in misclassification of HG and LG ore bodies and dilution. Since implementing blast movement in 2012, the mine estimates they have significantly increased per-blast value. In Q1 2018, they reported an increase in recovered value by up to 7 Million CAD. Find out more at www.blastmovement.com

1. Blast Movement Technologies
26 Spine Street
Sumner
Queensland, 4074 office@bmt.com.au
AUSTRALIA www.blastmovement.com 07/2018
Canadian Malartic
increased recovered value by
CA$7 Million in Q1 2018
Commodity Ore Grade Geology Powder Factor Location
Gold 1.10*
g/t Disseminated Porphyry 0.69 – 0.96 kg/m3
Canada
Canadian Malartic, Canada’s largest operating gold mine, is located in Quebec, Canada.
• Bulk-tonnage, low-grade Archean gold system mine
• Mineralisation is disseminated gold-bearing pyrite hosted in porphyritic felsic
• Ten-metre benches are mined in a single pass
Challenges Solution
Blast movement of ore was not accurately measured
or accounted for
BMM System accurately translated post-blast dig lines
Blast movement of ore was estimated1
and not accurately
measured, which resulted in:
• Misclassification of ore (i.e. high grade ore is stockpiled
as low grade or low grade ore is sent to the mill as
high grade)
• Ore loss, with gold bearing ore sent to the waste pile
• Dilution, with tonnes of waste being treated as ore
• Blast movement monitors (BMMs) are installed in
monitoring holes throughout the shot
• Installation and detection as per site standard
operating procedures
• BMM Explorer software calculates new dig lines, and
areas of ore loss and dilution that would have occurred
without monitoring
Results
Increased recovered value by up to 7 Million2
CAD,
during Q1, 2018
In this blast, Canadian Malartic avoided the potential loss of CA$159,885 (4% of
ore was not sent to waste) and prevented 6% dilution (11,688 tonnes) and 8%
misclassification (14,438 tonnes).
Accurate monitoring of blast movement helped Canadian
Malartic recover 217,000 tonnes of ore, valued at CA$7
Million, in Q1 2018.
An example blast, shown right, demonstrates how
monitoring blast movement recovers more ore.
Significant movement occurs within all blasts. Variation of
±50% from the mean horizontal movement is common and
occurred in this blast.
• Measured horizontal movement3
ranged from 3.8 – 7.9
m (12 – 26 ft) and vertical movement was up to 1.5 m
(5 ft)
As a result of accurately accounting for movement in this
blast, Canadian Malartic:
• Avoided 6% dilution because 11,688 tonnes of waste
were diverted from the mill
• Prevented 14,138 tonnes (8%) of ore being
misclassified and sent to the wrong stockpile
• Maximized ore yield—6,858 tonnes (4%) of ore, valued
at CA$159,8854
, was not sent to the waste pile
*
Average grade of ore polygons; 1. Prior to implementing the BMM System in December 2012;
2. Calculated from 70 production blasts Jan – Mar, 2018;
3. Movement measured by BMT’s BMM System; 4. Calculated at a gold price of CA $1,800/oz.
“BMT has made a significant improvement to grade and
recovered tonnes. I would definitely recommend BMT.”
Mr. S. Lajoie, Technicien Géologie – BMM, Canadian Malartic