Annual report pursuant to Section 13 and 15(d)

STOCKHOLDERS??? EQUITY (Tables)

v3.19.2
STOCKHOLDERS’ EQUITY (Tables)
12 Months Ended
May 31, 2019
Stockholders' Equity Note [Abstract]  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
The Company valued warrants using the Black-Scholes valuation model utilizing the following variables:

   

May 31,

   

May 31,

 
   

2019

   

2018

 

Volatility

    79.02 to 400.3

%

    99.36 to 99.53

%

Dividends

  $ 0     $ 0  

Risk-free interest rates

    2.68% to 2.77

%

    2.52% to 2.65

%

Term (years)

    3       3  
Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]
The following table summarizes the significant terms of warrants outstanding at May 31, 2019. This table does not include the unit warrants. See Unit Warrants section below.

 

Range of 

exercise

Prices

 

 

 

Number of 

warrants

Outstanding

 

 

 

Weighted 

average

remaining

contractual

life (years)

 

 

Weighted 

average

exercise

price of

outstanding 

Warrants

 

 

 

Number of

warrants 

Exercisable

 

 

Weighted

average

exercise

price of

exercisable 

Warrants

 

$

0.49

 

 

 

33,465,110

 

 

 

2.50

 

 

$

0.49

 

 

 

33,465,110

 

 

$

0.49

 

 

0.50

 

 

 

2,736,500

 

 

 

2.73

 

 

 

0.50

 

 

 

2,736,500

 

 

 

0.50

 

 

0.60

 

 

 

17,500,000

 

 

 

2.50

 

 

 

0.60

 

 

 

17,500,000

 

 

 

0.60

 

 

0.75

 

 

 

837,500

 

 

 

1.73

 

 

 

0.75

 

 

 

837,500

 

 

 

0.75

 

 

1.10

 

 

 

279,875

 

 

 

2.54

 

 

 

1.10

 

 

 

279,875

 

 

 

1.10

 

 

 

 

 

 

54,818,985

 

 

 

2.50

 

 

$

0.53

 

 

 

54,818,985

 

 

$

0.53

 

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
Transactions involving warrants are summarized as follows. This table does not include the special warrants or unit warrants. See Special Warrants and Unit Warrants sections below.

   

Number of

Shares

   

Weighted

Average

Exercise

Price

 

Warrants outstanding at May 31, 2017

    -     $ -  

Granted

    4,495,750     $ 0.61  

Exercised

    -     $ -  

Cancelled / Expired

    -     $ -  
                 

Warrants outstanding at May 31, 2018

    4,495,750     $ 0.61  

Granted

    50,738,235     $ 0.53  

Exercised

    (415,000

)

  $ 0.75  

Cancelled / Expired

    -     $ -  

Warrants outstanding at May 31, 2019

    54,818,985     $ 0.53