NAM comparison to NA Palladium
posted on
Feb 13, 2018 04:48PM
River Valley PGM Project with 2.9Moz Palladium Equivalent (Measured & Indicated) Advancing to Pre-Feasibility Study
Recent trading in NA Palladium made me wonder how NAM and PDL compare.
PDL HISTORY
1986 – Madelaine Mines acquired 50% LDIM from Sheridan Palladium
1993 – Madelaine becomes PDL & acquires 100% of LDIM
Dec 1993 - Lac des Isles Mine (LDIM) started open pit production at Roby Mine.
ore was crushed & milled on site then toll processed by Inco (25%) and Falconbridge (75%)
Palladium was sold to a large auto manufacturer
PDL reported a loss of $5.2M in 1999
2000 - Agra Simons Feasibility Study recommends $207M expansion program
2001 – new mill & concentrator started operation
2004 RPA Study recommended U/G mining
2006 - LDIM started U/G production at Roby Mine below the pit via ramp access
Oct 2008 - Roby mine placed on care & mtce due to low metal prices
Exploration drilling continued during & following the shutdown
RPA did several technical Reports during shutdown to determine viability of LDIM
During shutdown mill was redesigned to include SAG mill, jaw crusher & new flotation circuit
Mar 2010 - LDIM resumed U/G production
Nov. 2010 - RPA study reported PDL was now selling its concentrate to Xstrata in Sudbury.
2013 - a shaft to 825M was completed to access the offset zone
2014 – Tetra Teck report - Life of Mine Plan
2014 – concentrator started operating full time ( was 2 weeks /mo.)
2015 – Hatch PEA for Mine Expansion was prepared
Apr 2015 – PDL delisted on NY stock exchange
May-June 2015 – operations suspended – water issues
July 2015 – recapitalization & officer resignations
Sept 2015 – worforce reduction & further recapitalization (Brookfield)
Q3 2017 - PDL reported Net Income of $11M for Q3
PDL 43-101 Technical Reports
Agra Simons Ltd - May 2000 - Feasibility Study
Pincock,Allen& Holt - May 2001 - Technical Report
Scott Wilson RPA - July 2003 - Prefeasibility Report
Scott Wilson RPA - Feb 2004 - U/G Feasibility Report
Scott Wilson RPA - Feb 2007 - U/G Resource Estimate - Offset Zone
Scott Wilson RPA - Oct 2007 - Resource & Reserve Estimate
Mincon International - May 2008 - PEA of Offset Zone
Scott Wilson RPA - Jan 2009 - Update Offset Zone Resource Estimate
Scott Wilson RPA - Mar 2009 - Resource update
Scott Wilson RPA - Nov 2010 – Update Resource Estimate
Tetra Tech - Mar 2014 - Prefeasibility for Life of Mine
Hatch Engineering – April 2015 - PEA for Mine Expansion
Nordmin Engineering – June 2017 – Feasibility Study
PDL Metalurgical Studies
SGS – 2008 - Grinding Size Study
XPS – 2010 – metalurgical study – new grind size established
PDL (In House) – 2012- Flash Flotation Feasibility Study - not recommended
2017 PDL Mineral Reserves – Proven & Probable
Total 38.5M T 2.25g/t PD 2,787,000 OZ PD
Underground 21.2M T 3.09g/t PD
Surface 12.1M T 1.32g/t PD
2017 PDL Mineral Resources – Measured & Indicated
Total 28.8M T 1.9g/t PD 1,723,000 OZ PD
Measured 13.8M T 1.9g/t PD
Indicated 15.0M T 1.9g/t PD
2017 PDL Mineral Resources – Inferred
Total 4.4M T 2.6g/t PD
2017 PDL Total Resources and Reserves
Total 71.7M T 4,510,000 OZ PD
PDL COMPARISON TO NAM
2012 NAM Mineral Resources (Tetra Tech Report)
Measured 91.3M T 0.58g/t PD 1,867,899 OZ PD
Indicated 35.9M T 0.36g/t PD 455,881 OZ PD
Total 127.2 M T 2,323,781 OZ PD
NOTE: NAM Palladium conversion of grams to ounces = 0.035274g/oz)
GRADES
notice that the PDL underground grades are significantly higher than the surface/open pit grades
I suspect the same would be true if NAM were to do some deep drilling
the 2006 43-101 GeoSim study reported palladium grades of 1.33g/t PD
the 2012 Tetra Tech study reported much lower palladium grades
this is because the tetra tech study targeted a large-tonnage low-grade open pit model
2017 drilling in the footwall revealed much higher grades at very shallow depths
the inclusion of 2017 drilling in the 2018 RE should greatly increase the palladium ounces
RESERVES & RESOURCES (R&R)
PDL total R&R is 71.7M T verses 127.2M T for NAM
the PDL RE was produced in 2017 verses 2012 for the NAM outdated RE
This equates to 4.5M OZ PD for PDL verses 2.3M OZ PD for NAM
this is because the resource estimate for NAM assumes high tonnage open pit mineral extraction at lower grades palladium
assuming a 20% increase in 2018 we get...
153M T
open pit grade = 0.7g/t PD ( 2017 grades were over 1 g/t PD)
3.8M OZ PD
NOTE: This does not include other payable metals, AU, PT, CU,NI,Rh)
OBSERVATIONS
this comparisson underlines the economic value of the River Valley deposit
PDL has a long history and a lot of money spent on Technical reports
This comparison shows the importance of the new Technical Report and Metallurgical study
NAM resources are based on 2012 data and grossly out of date
NAM will have the cost advantage of an open pit mine
NAM will not have the expense of a mill if supported by Vale or Glencore
CONCLUSIONS
the RV deposit will utilize less expensive open pit methods of mining
RV is 100km from Vale verses 1000km for PDL
2017 drilling demonstrated comparable grades in the footwall at RV
only 3 km of the 16km strike length has been included in the resource estimate
the NAM resource size and grades are comparable to PDL with much more potential for growth
the next step for NAM may be a JV with a bigger company
PDL has returned to profitability and could afford to invest in 20% of NAM
possible JV partners include Vale, Glencore, PDL, Anglo American