10. PROPERTY, PLANT AND MINE DEVELOPMENT

		Mining Properties			Plant and Equipment			Mine Development Costs			Total

As at December 31, 2015	$	1,665,610		$	2,064,406		$	1,358,951		$	5,088,967

Additions		53,072			244,018			279,119			576,209

Gain on impairment reversal		83,992			36,169			–			120,161

Disposals		(1,890	)		(17,658	)		–			(19,548	)

Amortization		(207,383	)		(342,208	)		(110,162	)		(659,753	)

Transfers between categories		12,135			39,556			(51,691	)		–

As at December 31, 2016		1,605,536			2,024,283			1,476,217			5,106,036

Additions		174,374			221,924			648,242			1,044,540

Disposals		(6,750	)		(9,354	)		–			(16,104	)

Amortization		(127,579	)		(276,493	)		(103,848	)		(507,920	)

Transfers between categories		19,946			30,761			(50,707	)		–

As at December 31, 2017	$	1,665,527		$	1,991,121		$	1,969,904		$	5,626,552

As at December 31, 2016

Cost	$	2,593,659		$	4,233,945		$	2,050,980		$	8,878,584

Accumulated amortization and net impairments		(988,123	)		(2,209,662	)		(574,763	)		(3,772,548	)

Carrying value – December 31, 2016	$	1,605,536		$	2,024,283		$	1,476,217		$	5,106,036

As at December 31, 2017

Cost	$	2,782,732		$	4,602,106		$	2,648,514		$	10,033,352

Accumulated amortization and net impairments		(1,117,205	)		(2,610,985	)		(678,610	)		(4,406,800	)

Carrying value – December 31, 2017	$	1,665,527		$	1,991,121		$	1,969,904		$	5,626,552

As at December 31, 2017, assets under construction, and therefore not yet being depreciated, included in the carrying value of property, plant and mine development amounted to $910.6 million (2016 – $532.3 million).

During the year ended December 31, 2017, the Company disposed of property, plant and mine development with a carrying value of $16.1 million (2016 – $19.5 million). The loss on disposal was recorded in the other (income) expenses line item in the consolidated statements of income and comprehensive income.

Geographic Information:

		As at December 31, 2017		As at December 31, 2016

Northern Business:
Canada	$	3,730,809	$	3,266,594

Finland		889,610		853,445

Sweden		13,812		13,812

Southern Business:
Mexico		982,115		961,943

United States		10,206		10,242

Total property, plant and mine development	$	5,626,552	$	5,106,036