Stock warrants (Tables)

12 Months Ended

Jun. 30, 2019

Notes to Financial Statements

Schedule of Warrants Outstanding

The Binomial model with the following assumption inputs:

Warrants liability:	June 30, 2018
Annual dividend yield	—
Expected life (years)	0.5
Risk-free interest rate	2.06	%
Expected volatility	151	%
Warrants issued in May 2017:	June 30, 2019
Annual dividend yield	—
Expected life (years)	5.0
Risk-free interest rate	1.76	%
Expected volatility	351	%

	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