6) Mineral properties and development costs


			in thousands of dollars
	November 30, 2019	Acquisition costs	Assets	May 31, 2020
		reimbursable	derecognized
		from Ambler	note 4(a)
		Metals LLC
	$		$	$
Alaska, USA
Ambler (a)	26,631	(44)	(26,587)	—
Bornite (b)	4,000	—	(4,000)	—
	30,631	(44)	(30,587)	—


			in thousands of dollars
	November 30, 2018	Acquisition costs	November 30, 2019
	$	$	$
Alaska, USA
Ambler (a)	26,587	44	26,631
Bornite (b)	4,000	—	4,000
	30,587	44	30,631

(a)

Mineral properties expense

The following table summarizes mineral properties expense for the noted periods.


	In thousands of dollars
	Three months ended		Three months ended		Six months ended		Six months ended
	May 31, 2020		May 31, 2019		May 31, 2020		May 31, 2019
		$		$		$		$
Alaska, USA
Community		—		146		137		264
Drilling		—		173		—		173
Engineering		—		303		723		624
Environmental		—		136		99		271
Geochemistry and geophysics		—		593		12		758
Land and permitting		—		174		134		360
Project support		—		778		249		1,004
Other income		—		—		—		(1)
Wages and benefits		—		603		191		988
		—		2,906		1,545		4,441

No additional mineral properties expenses were incurred during the three-month period ended May 31, 2020, as on February 11, 2020, upon the formation of the joint venture with South 32, all mineral properties previously held by the Company were contributed to Ambler Metals LLC. The Company continues to fund the Arctic Project feasibility study, costs for which were $0.7 million since the formation of the joint venture on February 11, 2020. The table above is for comparison purposes for the respective periods.

(b)

Derecognition

As part of the formation of the joint venture with South32 on February 11, 2020, Trilogy contributed all its assets associated with the UKMP, including the Arctic and Bornite projects. As a result, $0.62 million of machinery and equipment as well as $30.6 million of mineral properties related to the UKMP were derecognized in Trilogy on February 11, 2020.