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SUPPLEMENTAL CASH FLOW INFORMATION
 12 Months Ended
Dec. 31, 2018
Cash Flow Statement [Abstract]  
SUPPLEMENTAL CASH FLOW INFORMATION
SUPPLEMENTAL CASH FLOW INFORMATION

Changes in working capital items during the years ended December 31, 2018 and 2017 are as follows:

Years ended December 31
2018

2017

 
$ 

$

Trade and other receivables
(4,234
)
23,232

Inventory
(40,144
)
(10,973
)
Trade and other payables
18,753

(10,117
)
Provisions
(5,309
)
(7,028
)
 
(30,934
)
(4,886
)













26.
SUPPLEMENTAL CASH FLOW INFORMATION (Continued)

Other adjustments for non-cash income statement items during the years ended December 31, 2018 and 2017 are as follows:

Years ended December 31
2018

2017

 
$

$

Share-based payments
2,157

2,219

Export duty adjustment in cost of sales
—

(4,303
)
Change in estimate of close down and restoration provision
1,580

141

Write down of fixed assets
2,771

1,719

Other
375

3,834

 
6,883

3,610


During the years ended December 31, 2018 and 2017, we conducted the following non-cash investing and financing transactions:
Years ended December 31
2018

2017

 
$

$

Marketable securities received for sale of exploration and evaluation assets (note 6)
1,751

992

Transfer of share-based payment reserve upon exercise of stock options
(2,864
)
(1,339
)
Acquisition of Chinchillas mineral property (note 3)
—

28,839