7. Risks and Uncertainties	9 Months Ended
Feb. 28, 2014
Risks and Uncertainties	Greystone derives a substantial portion of its revenue from a national brewer. This customer accounted for approximately 50% and 67% of Greystone’s pallet sales and 47% and 59% of Greystone’s total sales for the nine-month periods ended February 28, 2014 and 2013, respectively. Greystone’s recycled plastic pallets are approved for use by the customer and, at the current time, are the only plastic pallets used by the customer for shipping products. There is no assurance that Greystone will retain this customer’s business at the same level, or at all. The loss of a material amount of business from this customer could have a material adverse effect on Greystone. Warren F. Kruger, Greystone’s President and CEO, and Robert B. Rosene, Jr., a Greystone director, have provided financing to Greystone and guarantees on Greystone’s bank debt. As of February 28, 2014, Greystone was indebted to Mr. Rosene in the amount of $3,828,156 for a note payable and related accrued interest. There is no assurance that Mr. Rosene will continue to provide extensions in the future.

7. Risks and Uncertainties

9 Months Ended

Feb. 28, 2014

Greystone derives a substantial portion of its revenue from a national brewer. This customer accounted for approximately 50% and 67% of Greystone’s pallet sales and 47% and 59% of Greystone’s total sales for the nine-month periods ended February 28, 2014 and 2013, respectively. Greystone’s recycled plastic pallets are approved for use by the customer and, at the current time, are the only plastic pallets used by the customer for shipping products. There is no assurance that Greystone will retain this customer’s business at the same level, or at all. The loss of a material amount of business from this customer could have a material adverse effect on Greystone.

Warren F. Kruger, Greystone’s President and CEO, and Robert B. Rosene, Jr., a Greystone director, have provided financing to Greystone and guarantees on Greystone’s bank debt. As of February 28, 2014, Greystone was indebted to Mr. Rosene in the amount of $3,828,156 for a note payable and related accrued interest. There is no assurance that Mr. Rosene will continue to provide extensions in the future.