Note 12 - Concentrations, Risks and Uncertainties

9 Months Ended

Feb. 28, 2026

Notes to Financial Statements

Concentration Risk Disclosure [Text Block]

 Note 12.  Concentrations, Risks and Uncertainties

Greystone derived approximately 60% and 71% of its total sales during the nine months ended February 28, 2026 and 2025, respectively, from two major customers.  Approximately 54% and 57% of the concentration for the nine months ended February 28, 2026 and 2025, respectively, was derived from the lost major customer.  The loss of a material amount of business from these customers did have a material adverse effect on Greystone.