Stock warrants (Tables)

3 Months Ended

Sep. 30, 2017

Notes to Financial Statements

Schedule of Warrants Outstanding

The Black-Scholes model with the following assumption inputs:

Warrants liability	September 30, 2017
Annual dividend yield		—
Expected life (years)		3.61
Risk-free interest rate		1.89	%
Expected volatility		424	%
Warrants issued in May 2017	June 30, 2017
Annual dividend yield		—
Expected life (years)		3.86
Risk-free interest rate		1.89	%
Expected volatility		440	%
Warrants issued in 2012 with extension to July 1, 2016	June 30, 2016
Annual dividend yield		—
Expected life (years)		0.01
Risk-free interest rate		0.21	%
Expected volatility		449	%

Below is the movement of warrants for the period ending September 30, 2017:

	Number of  Shares		Weighted Average  Exercise Price		Weighted Average Remaining contractual life
Outstanding at June 30, 2015		131,250	$	0.20
Granted		—		—
Exercised		—		—
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
Granted		—		—
Exercised		—		—
Outstanding at September 30, 2017		505,000	$	0.15		3.61