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Note 11 - Asset Retirement Obligations
12 Months Ended
Jul. 31, 2019
Notes to Financial Statements  
Asset Retirement Obligation Disclosure [Text Block]
NOTE 
11
:
ASSET RETIREMENT OBLIGATIONS
 
The Company’s asset retirement obligations relate to future remediation and decommissioning activities at our Palangana Mine, Hobson Processing Facility and the Alto Parana Titanium Project pilot plant in Paraguay.
  
Balance, July 31, 2018
  $
4,020,282
 
Accretion
   
229,362
 
Revision in estimate of asset retirement obligations
   
(708,562
)
Balance, July 31, 2019
 
$
3,541,082
 
 
During Fiscal
2019,
the ARO for the Palangana Mine and the Hobson Processing Facility was revised due to changes in the estimated timing of restoration and reclamation of the Palangana Mine and decommissioning of the Hobson Processing Facility. As a result, ARO liabilities associated with the Palangana Mine reduced by
$532,309,
and ARO liabilities associated with the Hobson Processing Facility reduced by
$176,253.
Refer to Note
5:
Mineral Rights and Properties and Note
6:
Property, Plant and Equipment.
 
The estimated amounts and timing of cash flows and assumptions used for the ARO estimates are as follows:
 
   
July 31, 2019
   
July 31, 2018
 
Undiscounted amount of estimated cash flows
 
 
$
8,221,018
   
 
$
7,275,504
 
                     
Payable in years
 
 9
to
21
   
 5
to
17
 
Inflation rate
 
 1.56%
to
2.17%
   
 1.37%
to
2.14%
 
Discount rate
 
 5.50%
to
5.96%
   
 5.48%
to
6.40%
 
 
The undiscounted amounts of estimated cash flows for the next
five
years and beyond are as follows:
 
Fiscal 2020
  $
-
 
Fiscal 2021
   
-
 
Fiscal 2022
   
-
 
Fiscal 2023
   
-
 
Fiscal 2024
   
-
 
Remaining balance
   
8,221,018
 
    $
8,221,018