6. INVENTORIES

Inventories include the following components:



	As of		As of
	December 31, 2019		December 31, 2018
Stockpiled ore	$	7,578	$	6,613
In-process ore	2,721		4,188
Materials and supplies	28,167		23,659
Finished goods	394		736
Total	$	38,860	$	35,196

The cost of inventories expensed for the year ended December 31, 2019 and 2018 was $171.4 million and $209.4 million, respectively.

Net realizable value adjustments of $1.2 million were recorded for stockpiled ore in the year ended December 31, 2019 (year ended December 31, 2018 - $2.8 million).