Rare Element Resources
Bear Lodge Project
Canadian NI 43-101 PFS Technical Report
October 9
th
, 2014
10035-200-46 - Rev. 0
27-10
Summary of METSIM Modeling Output
Tables by, (SGS Lakefield 2014)
Leach Efficiency for Various Ore Composites
Precipitation with Oxalic Acid
Tables by,
(SGS Canada Inc., 2014)
Hydromet Plant Feed Significant Component Distribution
(SGS Canada Inc., “13684
‐
010 Assay Summary
‐
updated assays to RER.xls Individual
Summary,” April 10th, 2014.)
Screening Recoveries & Screening Recovery Comparative Basis
BHOx Primary Screening Recoveries
BHOx Secondary Screening Recoveries
BHOx Secondary Gravity Separation Recoveries
A METSIM model of the Hydromet process was built using bench scale and pilot plant data
from SGS Canada Inc.
Roche Engineering Inc., “YBY R3 – Aug 2014,” 2014.
Rose William, “MineProdSched-v_109_140721”, 2014.
SGS Canada Inc. “An Investigation into Pilot Scale Physical Upgrading Testing on Samples
from the Bear Lodge Deposit,” January 13
th
, 2014.
SGS Canada Inc., “13684-009 PP5 - PP7 Balances Optimized Summaries - April 2 2014”
Tab PP6 P A and PP6 P B, 2014.
Leach Efficiency Dataset(SGS Canada Inc., “13684-009 PP5 - PP7 Balances Optimized
Summaries – April 2 2014”, Tab PP5 PL A, PP5 L A, PP6 PL A, PP6 L A, PP7 PL A and
PP7 L A)
Ibid. Tab PP5 PL A, PP5 L A, PP6 PL A, PP6 L A, PP7 PL A and PP7 L A
“Leach efficiencies were established by SGS Canada Inc. for five typical feed composites”
Provided by, Ibid Tab Leach Steady-state conditions
The assigned leach efficiency datasets are presented below:
1)
Years 1 to 6: Composite D
2)
Years 7 to14: Composite C
