Stock warrants (Tables)

12 Months Ended

Jun. 30, 2020

Notes to Financial Statements

Schedule of Warrants Outstanding

The Binomial model with the following assumption inputs:

Warrants liability:	June 30, 2019
Annual dividend yield	—
Expected life (years)	5.0
Risk-free interest rate	1.76	%
Expected volatility	351	%
Warrants issued in May 2017:	June 30, 2020
Annual dividend yield	—
Expected life (years)	3.0-5.0
Risk-free interest rate	0.18-1.69	%
Expected volatility	137-318	%

	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining contractual life
Outstanding at June 30, 2016		131,250			0.20
Expired		131,250			0.20
Granted		505,000		$	0.15		4
Outstanding at June 30, 2017		505,000		$	0.15		3.86
Expired
Granted
Outstanding at June 30, 2018		505,000		$	0.15		0.5
Expired
Granted		578,880			0.034		5
Outstanding at June 30, 2019		1,083,880		$	0.034		5
Expired		(505,000	)		0.15
Granted		1,000,000			0.008		5
Outstanding at June 30, 2020		1,578,880		$	0.021		5