STOCK OPTIONS

12 Months Ended

May 31, 2022

Other Liabilities Disclosure [Abstract]

STOCK OPTIONS

Note 10. STOCK OPTIONS

Greystone has a stock option plan that provides for the granting of options to key employees and non-employee directors. The options are to purchase common stock at not less than fair market value at the date of the grant. Stock options generally expire in ten years from the date of grant or upon termination of employment and are generally exercisable one year from date of grant in cumulative annual installments of 25%. A summary of option activity during the two years ended May 31, 2022, is as follows:

	Number			Weighted Average Exercise Price
Total outstanding May 31, 2020		200,000		$	0.12
Total outstanding May 31, 2021		200,000		$	0.12
Exercised		(200,000	)	$	0.12
Total outstanding May 31, 2022		-0-