	a)	Common shares

		At January 31, 2020, the Company held shares as follows:

	Number of Shares		Cost		Accumulated Unrealized Gain (Loss)			Fair Value

Available-for-sale shares:
Discovery Metals Corp.		20,350	$	1,957	$	11,881			13,838
VBI Vaccines Inc.		2,000		4,232		(1,492	)		2,740
			$	6,189		10,389		$	16,578

At January 31, 2019, the Company held shares as follows:

	Number of Shares		Cost		Accumulated Unrealized Gain (Loss)			Fair Value

Available-for-sale shares:
Levon Resources Ltd.		37,000	$	1,957	$	3,778		$	5,735
VBI Vaccines Inc.		2,000		4,232		150			4,382
Great Thunder Gold Corp.		10,819		866		(703	)		163
			$	7,055		3,225		$	10,280

During the year ended January 31, 2020, the Company recorded an unrealized gain of $6,299 (2019 – loss of $19,197; 2018 – loss of $57,269) on investments in marketable securities, representing the change in fair value during the year.

During the year ended January 31, 2020, Discovery Metals Corp. (“Discovery”) acquired Levon Resources Ltd. (“Levon”). As a result of the transaction, the Company received 20,350 common shares of Discovery in exchange for the previously-owned 37,000 common shares of Levon.

During the year ended January 31, 2020, the Company sold 2,704 (2019 – Nil, 2018 – Nil) shares of Great Thunder Gold Corp. for gross proceeds of $379 (2019 – $Nil, 2018 – $Nil). As a result, the Company recorded a loss on sale of investments of $595 for the year ended January 31, 2019 (gain of 2019 – $14,635, 2018 – gain of $93,693).

	b)	Other investments

		During the year ended January 31, 2020, the Company purchased US$2,000,000 ($2,646,600 based on the closing US dollar to Canadian dollar exchange rate at January 31, 2020) in principal-protected notes that mature on November 22, 2021. During the year ended January 31, 2020, the Company recorded $11,684 (2019 – Nil, 2018 – Nil) in unrealized interest income on the appreciation of these investments. As at January 31, 2020, the fair value of the investments was $2,658,284.